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Discuss Help!!! Advice needed, 4.3 liter engine head gasket in a 96 Astro van in the alt.trucks.chevy forum at Car Dealer Forums; In article <t04ai352kjs9bsvkpu44kjobjvhiuma2oi@4ax.com>, SnoMan <admin@snoman.com> wrote: > On Sun, 28 Oct 2007 16:06:11 -0500, Neil ...
  1. #11
    Neil Nelson
    Guest

    Default Re: Help!!! Advice needed, 4.3 liter engine head gasket in a 96 Astro van

    In article <t04ai352kjs9bsvkpu44kjobjvhiuma2oi@4ax.com>,
    SnoMan <admin@snoman.com> wrote:

    > On Sun, 28 Oct 2007 16:06:11 -0500, Neil Nelson
    > <nonelson@sbcglobal.net> wrote:
    >
    > >Snoman
    > >
    > >Why he felt the need to parrot his same old drool when you had already
    > >mentioned having the heads checked/reworked is anyones guess.
    > >

    >
    > No you mean Neil is the bird brain. Head gasket do not just fail for
    > no reason and if you think they do you are a bird brain.


    The OP realizes that genius, that's why he stated in his first post that
    he was going to take the heads to a machine shop and have them checked.

    Do you not read what people post, or is it just a lack of comprehension?

    You going to deny the plausibility of the computer programmer had a
    leaking intake gasket and ran the coolant low resulting in what is now
    SUSPECTED to be a blown head gasket?

    >
    > >I highly advise using a Fel-Pro MS98002T intake manifold gasket set on
    > >this application, this set is a better design that addresses the
    > >inherent weak spot of the OEM manifold gaskets which were very prone to
    > >failure. (and may well be the root cause of the overheat)
    > >Also, keep the injectors wet once disassembled; when you disconnect the
    > >fuel lines at the left rear corner of the engine, cap the lines on the
    > >manifold side. If the injectors are allowed to dry out, there is a very
    > >good chance that they will stick and cause a misfire.

    >
    > There was a design defect with Intake gasket that GM rediesigned in
    > late 2005.


    GMs redesign sucks. The Fel-Pro gaskets are much better.

    > It effected the 4.3 and 5.7 Vortec motors.


    The defect effects ALL GM V engines. 3.1, 3.4, 3.8, 4.3, 5.0, 5.7.

    > I personall had
    > one fail on my 2000 5.7 under warranty at 29K miles and again out of
    > warranty at 38K miles. They fixed it for free out of warranty and
    > promised me that if it ever leaks again they will fix it for free.


    IOWs, you've never done the job, even on your own truck.
    <snicker>

    > They said last repair had new gasket style. BTW truck only has a
    > little over 42K today
    >
    > >
    > >Good luck with your project.

    >
    > You will need good luck if you follow Neils advise and do not varify
    > that heads are flat.


    Hey asshole, where did I tell him not to verify that the heads were flat?
    (use all the screen space you need to show the citation)

    > That head gasket is clamped between to big pieces


    You mean 'two' big pieces?

    > of cast iron and the only way it is going to block is if one of the
    > surfaces warps and changes pressure on it. (or you supercharge it on
    > over boost engine a lot too).


    Gotta love these tangents you go off on...
    Supercharged?? W-T-F?

    > SOme time they can warp with heat and
    > straight out with they cool but NEVER change a head gasket on any
    > engine that has blown one without check head for flatness or for
    > etching from hot gasses after it blew.


    Yes birdbrain, this should be mentioned six or seven more times, even
    though the OP knows to (and has stated that he will) do it anyway.



    › See More: Help!!! Advice needed, 4.3 liter engine head gasket in a 96 Astro van

  2. #12
    GM
    Guest

    Default Re: Help!!! Advice needed, 4.3 liter engine head gasket in a 96 Astro van

    <mikemorris99@gmail.com> wrote in message
    news:1193555739.236726.181950@k35g2000prh.googlegr oups.com...
    > Posted to alt.trucks.chevy, rec.autos.tech, alt.autos.4x4.chevy-
    > trucks
    >
    > Subject: Help!!! Advice needed, 4.3 liter engine head gasket in a 96
    > Astro van


    I have the exact same vehicle (purchased new). I have also done the exact
    same thing to it as you are fixing to do. I have read all the other threads
    and you have been given a load of good advice. Here is what I found when I
    did this on my van at about 117K.

    1. The 4.3 is basically a small block chevy v-8 with two cylinders whacked
    off. If you have worked one the other should not be a problem.

    2. Mine started as the intake gasket leak. Kept adding coolant as I was
    dreading working in the tight space. The comment that your arms will look
    like cats have attacked them are true. Sharp metal and corners everywhere.
    You will be working mostly inside the van so (like the others have said)
    pull both front seats and cover the floor. I put down plastic first (this
    van is my wife's primary and has been kept pretty clean), covered that with
    cardboard, and then put blankets on top. Maybe overkill but laying on the
    floor to work on the van was a lot more comfortable.

    3. There is a special intake gasket (again mentioned in another thread) that
    is a must. I hard a hard time locating in town as most part stores want to
    sell you what they have. I ended up ordering from rockauto.com.

    4. The advice on the fuel injectors is true. I learned the hard way and
    ended up replacing the entire spider assembly. There is a newer upgrade to
    the OE model out there so if this happens go for that one. I believe that my
    costs were about $300 to $325. I got mine at a local NAPA store (could not
    wait the additional downtime on internet ordering to save the bucks). As a
    plus once I replaced the assembly the van is now getting better mileage.

    5. You will strip the front of the engine. Does it have AC? If so, I did
    mine without breaking any connections. I wired the compressor assembly
    straight up from the motor to something under the dash. I do not remember
    what I wired it to but it held the entire time.

    6. I replaced the fan clutch, idler pulley, thermostat, all vacuum lines,
    heater hoses (does the van have rear heat?)(easy to get to them now), oil
    sending unit (leaking), and basically any thing that I felt would not last
    another 75 to 100K. Another thing on removing the fan clutch. I used a large
    (14") crescent wrench as I did not have an open end that size. It runs in my
    mind that this is reverse thread due to engine rotation. Also when I put
    mine back together I did not tighten it near as what it was from the
    factory. Engine rotation will always tend to tighten it so I felt OK at just
    "very snug".

    7. It took me two solid days to take apart and put back together. 1 day
    downtime at the machine shop. When you go to put back together you will need
    help from someone. I found it easiest to have one person up front and me
    inside. We worked together at setting the heads and intake manifold.

    8. Plastic zip lock bags, I used a bunch of them. I would take a permanent
    marker and write on the bag what the bolts went to. I then placed them in
    order, reversing them when going back together. Kind of kept me in proper
    sequence.

    9. Distributor, before you remove it mark the housing position on the engine
    block. Then mark the rotor position on the manifold. The computer sets the
    timing so if you get it back to where it was originally it will work.

    10. As someone else mentioned heat is a killer under here. I ended up
    replacing the ign coil, new wires, cap, rotor, and other items related. It
    was way easy for me to spend my own money (probably overkill but I do not
    want my wife stranded by a part that I could easily replace now).

    11. If you have good mechanical common sense this project will not be a
    major pain.

    Take Care,
    GM



  3. #13
    M.M.
    Guest

    Default Re: Help!!! Advice needed, 4.3 liter engine head gasket in a 96 Astrovan

    GM wrote:
    >
    > I have the exact same vehicle (purchased new). I have also done the exact
    > same thing to it as you are fixing to do. I have read all the other threads
    > and you have been given a load of good advice. Here is what I found when I
    > did this on my van at about 117K.
    > ...
    >
    > 2. Mine started as the intake gasket leak. Kept adding coolant as I was
    > dreading working in the tight space. ...


    Oh mann...this is a scary thread. I have a 98 Astro that leaks coolant
    but I haven't had a chance to investigate where from. It leaks it out
    onto the garage floor and appears to be coming from to front of the
    engine on the passenger side. It seems to leak about a quart and then
    stops leaking...kinda weird...and like GM I've been adding coolant every
    so often. So far I haven't seen any oil in water or vice-versa...I
    wonder if it could be something besides a manifold gasket? It only has
    60K miles in it and has never overheated. Having done some work on it I
    don't know if I'd be up to something like this. My wife's been talking
    about a new car anyway so maybe it's time...

  4. #14
    David & Robin Johnson
    Guest

    Default Re: Help!!! Advice needed, 4.3 liter engine head gasket in a 96 Astro van


    "GM" <comments7407@att.net.no.spam.net> wrote in message
    news:6s9Vi.292485$ax1.72971@bgtnsc05-news.ops.worldnet.att.net...
    > <mikemorris99@gmail.com> wrote in message
    > news:1193555739.236726.181950@k35g2000prh.googlegr oups.com...
    >> Posted to alt.trucks.chevy, rec.autos.tech, alt.autos.4x4.chevy-
    >> trucks
    >>
    >> Subject: Help!!! Advice needed, 4.3 liter engine head gasket in a 96
    >> Astro van

    >
    > I have the exact same vehicle (purchased new). I have also done the exact
    > same thing to it as you are fixing to do. I have read all the other
    > threads and you have been given a load of good advice. Here is what I
    > found when I did this on my van at about 117K.
    >
    > 1. The 4.3 is basically a small block chevy v-8 with two cylinders whacked
    > off. If you have worked one the other should not be a problem.
    >
    > 2. Mine started as the intake gasket leak. Kept adding coolant as I was
    > dreading working in the tight space. The comment that your arms will look
    > like cats have attacked them are true. Sharp metal and corners everywhere.
    > You will be working mostly inside the van so (like the others have said)
    > pull both front seats and cover the floor. I put down plastic first (this
    > van is my wife's primary and has been kept pretty clean), covered that
    > with cardboard, and then put blankets on top. Maybe overkill but laying on
    > the floor to work on the van was a lot more comfortable.
    > DONT SOUND LIKE OVERKILL, OVERKILL IS WHEN YOU GET A BIG STAIN ON YOUR
    > WIFE'S CARPET. IF SHE IS LIKE MINE YOU WOULD BE OVERKILLED.
    > 3. There is a special intake gasket (again mentioned in another thread)
    > that is a must. I hard a hard time locating in town as most part stores
    > want to sell you what they have. I ended up ordering from rockauto.com.
    >
    > 4. The advice on the fuel injectors is true. I learned the hard way and
    > ended up replacing the entire spider assembly. There is a newer upgrade to
    > the OE model out there so if this happens go for that one. I believe that
    > my costs were about $300 to $325. I got mine at a local NAPA store (could
    > not wait the additional downtime on internet ordering to save the bucks).
    > As a plus once I replaced the assembly the van is now getting better
    > mileage.
    >
    > 5. You will strip the front of the engine. Does it have AC? If so, I did
    > mine without breaking any connections. I wired the compressor assembly
    > straight up from the motor to something under the dash. I do not remember
    > what I wired it to but it held the entire time.
    >
    > 6. I replaced the fan clutch, idler pulley, thermostat, all vacuum lines,
    > heater hoses (does the van have rear heat?)(easy to get to them now), oil
    > sending unit (leaking), and basically any thing that I felt would not last
    > another 75 to 100K. Another thing on removing the fan clutch. I used a
    > large (14") crescent wrench as I did not have an open end that size. It
    > runs in my mind that this is reverse thread due to engine rotation. Also
    > when I put mine back together I did not tighten it near as what it was
    > from the factory. Engine rotation will always tend to tighten it so I felt
    > OK at just "very snug".
    >
    > 7. It took me two solid days to take apart and put back together. 1 day
    > downtime at the machine shop. When you go to put back together you will
    > need help from someone. I found it easiest to have one person up front and
    > me inside. We worked together at setting the heads and intake manifold.
    >
    > 8. Plastic zip lock bags, I used a bunch of them. I would take a permanent
    > marker and write on the bag what the bolts went to. I then placed them in
    > order, reversing them when going back together. Kind of kept me in proper
    > sequence.
    >
    > 9. Distributor, before you remove it mark the housing position on the
    > engine block. Then mark the rotor position on the manifold. The computer
    > sets the timing so if you get it back to where it was originally it will
    > work.
    >
    > 10. As someone else mentioned heat is a killer under here. I ended up
    > replacing the ign coil, new wires, cap, rotor, and other items related. It
    > was way easy for me to spend my own money (probably overkill but I do not
    > want my wife stranded by a part that I could easily replace now).
    >
    > 11. If you have good mechanical common sense this project will not be a
    > major pain.
    >
    > Take Care,
    > GM
    >




  5. #15
    SnoMan
    Guest

    Default Re: Re: Help!!! Advice needed, 4.3 liter engine head gasket in a 96 Astro van

    On Sun, 28 Oct 2007 23:22:37 GMT, Neil Nelson <nonelson@sbcglobal.net>
    wrote:

    >In article <t04ai352kjs9bsvkpu44kjobjvhiuma2oi@4ax.com>,
    > SnoMan <admin@snoman.com> wrote:
    >
    >> On Sun, 28 Oct 2007 16:06:11 -0500, Neil Nelson
    >> <nonelson@sbcglobal.net> wrote:
    >>
    >> >Snoman
    >> >
    >> >Why he felt the need to parrot his same old drool when you had already
    >> >mentioned having the heads checked/reworked is anyones guess.
    >> >

    >>
    >> No you mean Neil is the bird brain. Head gasket do not just fail for
    >> no reason and if you think they do you are a bird brain.

    >
    >The OP realizes that genius, that's why he stated in his first post that
    >he was going to take the heads to a machine shop and have them checked.


    You just like to be a troll and cause trouble. I was telling them SOP
    of gasket repair.

    >
    >Do you not read what people post, or is it just a lack of comprehension?


    Yes I do think you lack reasoning and comprehension...

    >
    >You going to deny the plausibility of the computer programmer had a
    >leaking intake gasket and ran the coolant low resulting in what is now
    >SUSPECTED to be a blown head gasket?


    Where are you going with this Troll??? I said overheating or low
    coolant earlier did I not?

    >
    >>
    >> >I highly advise using a Fel-Pro MS98002T intake manifold gasket set on
    >> >this application, this set is a better design that addresses the
    >> >inherent weak spot of the OEM manifold gaskets which were very prone to
    >> >failure. (and may well be the root cause of the overheat)
    >> >Also, keep the injectors wet once disassembled; when you disconnect the
    >> >fuel lines at the left rear corner of the engine, cap the lines on the
    >> >manifold side. If the injectors are allowed to dry out, there is a very
    >> >good chance that they will stick and cause a misfire.

    >>
    >> There was a design defect with Intake gasket that GM rediesigned in
    >> late 2005.

    >
    >GMs redesign sucks. The Fel-Pro gaskets are much better.


    New design is a lot better

    >
    >> It effected the 4.3 and 5.7 Vortec motors.

    >
    >The defect effects ALL GM V engines. 3.1, 3.4, 3.8, 4.3, 5.0, 5.7.


    Not really but then a Troll would not likely know this. The reason
    there was a big problem with 4.3 and 5.7 Vortec motors is because when
    GM went from TBI to MPI thay changed bolting of intake to engine
    (example on 5.7 they stopped using center 4 bolts to secure it) and
    the manifold flexed more in heating and cooling cycle and strained
    gaskets plus GM used a cheap plastic design for a while too. Intake
    gasket problems with TBI engines where of a different nature and 3.1,
    3.4 and 3.8 where not as troublesome because they were not based on a
    modified 40 plus year old engine design.

    >
    >> I personall had
    >> one fail on my 2000 5.7 under warranty at 29K miles and again out of
    >> warranty at 38K miles. They fixed it for free out of warranty and
    >> promised me that if it ever leaks again they will fix it for free.

    >
    >IOWs, you've never done the job, even on your own truck.
    ><snicker>


    Actuall I have rebuild a lot of engine and valve jobs and intake
    gasket changes but why change it when GM will pay to have it done?? Is
    this a Troll thing? BTW, I was planning to change mine when GM offered
    to do it for free and free repair if it ever leaks again and only a
    foolish troll would pass that one up.

    >
    >> They said last repair had new gasket style. BTW truck only has a
    >> little over 42K today
    >>
    >> >
    >> >Good luck with your project.

    >>
    >> You will need good luck if you follow Neils advise and do not varify
    >> that heads are flat.

    >
    >Hey asshole, where did I tell him not to verify that the heads were flat?
    >(use all the screen space you need to show the citation)


    tisk tisk, Troll loosing temper. Remember you started this not me....

    >
    >> That head gasket is clamped between to big pieces

    >
    >You mean 'two' big pieces?


    I guess your troll brain get lost here and cannot rationalize that the
    block is a big piece of cast iron and so is head.

    >
    >> of cast iron and the only way it is going to block is if one of the
    >> surfaces warps and changes pressure on it. (or you supercharge it on
    >> over boost engine a lot too).

    >
    >Gotta love these tangents you go off on...
    >Supercharged?? W-T-F?


    Another Troll responce, I was stating the reason why they fail in
    service. I dod not say he had a super on his. I need to remember when
    you talk to a Troll you have to keep it simple sometimes.

    >
    >> SOme time they can warp with heat and
    >> straight out with they cool but NEVER change a head gasket on any
    >> engine that has blown one without check head for flatness or for
    >> etching from hot gasses after it blew.

    >
    >Yes birdbrain, this should be mentioned six or seven more times, even
    >though the OP knows to (and has stated that he will) do it anyway.


    Yes I am sure he sees who has a temper problem here.
    -----------------
    TheSnoMan.com

  6. #16
    Neil Nelson
    Guest

    Default Re: Help!!! Advice needed, 4.3 liter engine head gasket in a 96 Astro van

    In article <1vnbi3lrcohkni1ok45as4dvl30tb9sdb4@4ax.com>,
    SnoMan <admin@snoman.com> wrote:

    > >The OP realizes that genius, that's why he stated in his first post that
    > >he was going to take the heads to a machine shop and have them checked.

    >
    > You just like to be a troll and cause trouble. I was telling them SOP
    > of gasket repair.


    Uh-huh.. Seems he already had that figured out with out you reinforcing
    it.

    > >
    > >Do you not read what people post, or is it just a lack of comprehension?

    >
    > Yes I do think you lack reasoning and comprehension...


    Parroting what someone else has already said shows reasoning and
    comprehension, eh?

    > >You going to deny the plausibility of the computer programmer had a
    > >leaking intake gasket and ran the coolant low resulting in what is now
    > >SUSPECTED to be a blown head gasket?

    >
    > Where are you going with this Troll??? I said overheating or low
    > coolant earlier did I not?


    The OP said he was having the heads checked earlier did he not?

    > >> There was a design defect with Intake gasket that GM rediesigned in
    > >> late 2005.

    > >
    > >GMs redesign sucks. The Fel-Pro gaskets are much better.

    >
    > New design is a lot better


    By your own admission, the redesign failed in your truck after 9000
    miles.

    > >
    > >> It effected the 4.3 and 5.7 Vortec motors.

    > >
    > >The defect effects ALL GM V engines. 3.1, 3.4, 3.8, 4.3, 5.0, 5.7.

    >
    > Not really


    Yes, really. Same gasket architecture, same reason for failure.

    > but then a Troll would not likely know this.


    I guess you wouldn't.

    > The reason
    > there was a big problem with 4.3 and 5.7


    What about the 5.0, are you saying that that engine didn't suffer intake
    gasket failures as the 4.3 and 5.7 did?
    Or is this just your armchair expertise showing thru again?

    > Vortec motors is because when
    > GM went from TBI to MPI thay changed bolting of intake to engine
    > (example on 5.7 they stopped using center 4 bolts to secure it)


    Just like the Ford Windsor engines which strangely don't suffer intake
    gasket failures any worse that the pre-Vortec Chevies.

    > and the manifold flexed more in heating and cooling cycle and strained
    > gaskets


    Um, Mr. Genius, the coolant leaks are not in the center of the manifold
    where the bolts were eliminated, they leak at the ends where there are
    two (note spelling) bolts per coolant passage.
    If (big if) your missing bolt, flexing manifold theory were correct,
    these engines would have a history of driveability problems from vacuum
    leaks into the lifter valley and oil consumption problems from the leaks
    allowing oil to migrate into the intake manifold from the lifter valley.

    > plus GM used a cheap plastic design


    Bingo!

    > for a while too. Intake
    > gasket problems with TBI engines where of a different nature


    Um, no. They leaked in the exact same place in the exact same manner.
    Only differences were; it usually took longer before they began leaking
    and the old gaskets were harder to scrape off.

    > and 3.1,
    > 3.4 and 3.8 where not as troublesome


    They most certainly are.

    > because they were not based on a
    > modified 40 plus year old engine design.


    The Buick 3.8/3800 isn't based on a modified 40 year old design?

    You don't know your ass from a hole in the ground.

    Oh, FYI, Buick didn't eliminate any bolts from the center of the
    manifold on the 3.8/3800 engines yet the gaskets still fail.

    > >> I personall had
    > >> one fail on my 2000 5.7 under warranty at 29K miles and again out of
    > >> warranty at 38K miles.


    Looks like your "a lot better" redesigned gaskets only last 9000 miles.
    Why don't you give the OP a break and stop recommending parts that are
    going to fail and cause him to do the job over again.

    > They fixed it for free out of warranty and
    > >> promised me that if it ever leaks again they will fix it for free.

    > >
    > >IOWs, you've never done the job, even on your own truck.
    > ><snicker>

    >
    > Actuall I have rebuild a lot of engine and valve jobs and intake
    > gasket changes but why change it when GM will pay to have it done??


    Because better parts would be available, because someone isn't too lazy
    to do it, because someone has the skill sets to do it, because self
    respect prevents them from whining about an out of warranty failure.

    > Is
    > this a Troll thing?


    Certainly not, it's a laugh at you thing.

    > BTW, I was planning to change mine when GM offered


    GM "offered?"
    They have people that just call around and ask if people would like a
    free set of defective intake manifold gaskets, huh?

    > to do it for free and free repair if it ever leaks again and only a
    > foolish troll would pass that one up.


    You think "free" means good? <sheesh>

    > >
    > >> They said last repair had new gasket style. BTW truck only has a
    > >> little over 42K today
    > >>
    > >> >
    > >> >Good luck with your project.
    > >>
    > >> You will need good luck if you follow Neils advise and do not varify
    > >> that heads are flat.

    > >
    > >Hey asshole, where did I tell him not to verify that the heads were flat?
    > >(use all the screen space you need to show the citation)

    >
    > tisk tisk, Troll loosing temper. Remember you started this not me....


    So, you can't provide a cite of me telling him not to verify that the
    heads are flat. IOWs, more of your made up bull shit, which better fits
    the definition of "troll" than anything I've posted.
    >
    > >
    > >> That head gasket is clamped between to big pieces

    > >
    > >You mean 'two' big pieces?

    >
    > I guess your troll brain get lost here and cannot rationalize that the
    > block is a big piece of cast iron and so is head.


    But where are these big pieces going [to]?
    >
    > >
    > >> of cast iron and the only way it is going to block is if one of the
    > >> surfaces warps and changes pressure on it. (or you supercharge it on
    > >> over boost engine a lot too).

    > >
    > >Gotta love these tangents you go off on...
    > >Supercharged?? W-T-F?

    >
    > Another Troll responce, I was stating the reason why they fail in
    > service.


    How can that be a reason [they] fail when this truck doesn't have a
    supercharger to begin with?

    > I dod not say he had a super on his.


    So why even bring it up other than your insane need to fill space with
    meaningless and irrelevant tripe?

    > I need to remember when
    > you talk to a Troll you have to keep it simple sometimes.


    No, you just need to remember to stick to the subject when you actually
    have something useful to offer and resist the urge to add extraneous
    filler material.
    >
    > >
    > >> SOme time they can warp with heat and
    > >> straight out with they cool but NEVER change a head gasket on any
    > >> engine that has blown one without check head for flatness or for
    > >> etching from hot gasses after it blew.

    > >
    > >Yes birdbrain, this should be mentioned six or seven more times, even
    > >though the OP knows to (and has stated that he will) do it anyway.

    >
    > Yes I am sure he sees who has a temper problem here.


    That would be the guy posting non-relevant, inadequate filler material.

  7. #17
    Comboverfish
    Guest

    Default Re: Help!!! Advice needed, 4.3 liter engine head gasket in a 96 Astro van

    On Oct 29, 9:58 am, Neil Nelson <nonel...@sbcglobal.net> wrote:
    > In article <1vnbi3lrcohkni1ok45as4dvl30tb9s...@4ax.com>,
    >
    > SnoMan <ad...@snoman.com> wrote:


    > > and 3.1,
    > > 3.4 and 3.8 where not as troublesome

    >
    > They most certainly are.
    >
    > > because they were not based on a
    > > modified 40 plus year old engine design.

    >
    > The Buick 3.8/3800 isn't based on a modified 40 year old design?


    Jinx, You Owe Me A Coke!

    Toyota MDT in MO


  8. #18
    Bob M
    Guest

    Default Re: Help!!! Advice needed, 4.3 liter engine head gasket in a 96 Astrovan

    M.M. wrote:
    > GM wrote:
    >>
    >> I have the exact same vehicle (purchased new). I have also done the
    >> exact same thing to it as you are fixing to do. I have read all the
    >> other threads and you have been given a load of good advice. Here is
    >> what I found when I did this on my van at about 117K.
    >> ...
    >>
    >> 2. Mine started as the intake gasket leak. Kept adding coolant as I
    >> was dreading working in the tight space. ...

    >
    > Oh mann...this is a scary thread. I have a 98 Astro that leaks coolant
    > but I haven't had a chance to investigate where from. It leaks it out
    > onto the garage floor and appears to be coming from to front of the
    > engine on the passenger side. It seems to leak about a quart and then
    > stops leaking...kinda weird...and like GM I've been adding coolant every
    > so often. So far I haven't seen any oil in water or vice-versa...I
    > wonder if it could be something besides a manifold gasket? It only has
    > 60K miles in it and has never overheated. Having done some work on it I
    > don't know if I'd be up to something like this. My wife's been talking
    > about a new car anyway so maybe it's time...


    Your problem sounds more like a bad water pump.

    Bob

  9. #19
    John Hermann
    Guest

    Default Re: Help!!! Advice needed, 4.3 liter engine head gasket in a 96 Astro van

    mikemorris99@gmail.com wrote:
    Posted to alt.trucks.chevy, rec.autos.tech, alt.autos.4x4.chevy-
    trucks

    Subject: Help!!! Advice needed, 4.3 liter engine head gasket in a 96
    Astro van

    Background...

    > Rest of text deleted...


    At first I was going to suggest just buying another Van as it might
    be cheaper and definitely easier; but I was surprised at these
    vans resell value. If initial estimates for fixing the old van
    are near $1000, it might be better to just buy another van.
    I did a quick search on Craigslist in my area (North Texas) and
    found a 2000 model with an asking price $2650:

    http://dallas.craigslist.org/car/455577686.html

    Of course you can get lower prices with older cars or different
    locations.

    I have a 4.3L engine in my 1995 blazer, and so far have not had
    the water leak problems. I have had them in my 1998 Suburban,
    however, and had it repaired 5 years ago. My mechanic suggested
    using the old green anti-freeze as he has the theory that the
    new dexcool stuff contributes to the water leak problem.
    So far his theory is holding up; we've put 75000+ miles over
    the last 5 years and no problems. BTW, my 1995 blazer never
    used the dexcool; it was just before dexcool was released.
    However, a week after the repair and switching over to the
    green antifreeze, the water pump started leaking... very badly.
    My mechanic said that it didn't surprise him, and it was because
    the dexcool coats the inner parts of the pump. As the dexcool
    desolve, the coating that was blocking leaks goes away. I was
    dissappointed that he didn't tell me that before doing the job
    so that the pump could have been replaced at the same time
    (with very little extra effort). So I decided to replace the
    pump myself instead of hiring him; it was an easy job anyway.
    BTW, the actual reason for the intake manifold leak problem
    is because GM redesigned the bolts to go in at an angle relative
    to the manifold. Why they decided to change the design is
    beyond me; the perpendicular design was used for decades and
    was proven. It almost makes you think they wanted bad design.

    Good luck with your repairs.

    Best Regards,

    John Hermann

  10. #20
    Neil Nelson
    Guest

    Default Re: Help!!! Advice needed, 4.3 liter engine head gasket in a 96 Astro van

    In article <1193674429.003337.200690@50g2000hsm.googlegroups. com>,
    Comboverfish <comboverfish@yahoo.com> wrote:

    > On Oct 29, 9:58 am, Neil Nelson <nonel...@sbcglobal.net> wrote:
    > > In article <1vnbi3lrcohkni1ok45as4dvl30tb9s...@4ax.com>,
    > >
    > > SnoMan <ad...@snoman.com> wrote:

    >
    > > > and 3.1,
    > > > 3.4 and 3.8 where not as troublesome

    > >
    > > They most certainly are.
    > >
    > > > because they were not based on a
    > > > modified 40 plus year old engine design.

    > >
    > > The Buick 3.8/3800 isn't based on a modified 40 year old design?

    >
    > Jinx,


    I beg to differ...
    .... just as I was reading this, Favre threw an incredible touchdown pass.

    > You Owe Me A Coke!


    Am I coming down there to buy you one or are you coming up here?

    Take Paypal?

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