Page 1 of 2 12 LastLast
Results 1 to 10 of 12
Discuss Engine not warming up in the alt.autos.toyota forum at Car Dealer Forums; My car's engine isn't warming up sufficiently according to the temperature gauge. I suspected a ...
  1. #1
    singh.tripurari@gmail.com
    Guest

    Default Engine not warming up

    My car's engine isn't warming up sufficiently according to the
    temperature gauge. I suspected a stuck-open thermostat to begin with,
    but now I see that the fan starts running as soon as I start the car,
    albeit at a slow speed.

    Is it normal for the (hydraulic) fan to start turning even when the
    engine is cold? The car is a 1995 Lexus ES300 with the 1MZ-FE engine.

    Thanks,
    Tripurari

  2. #2
    Ray O
    Guest

    Default Re: Engine not warming up


    <singh.tripurari@gmail.com> wrote in message
    news:809d5d6f-2b55-4fb4-8623-ffe62fa08d48@z28g2000prd.googlegroups.com...
    > My car's engine isn't warming up sufficiently according to the
    > temperature gauge. I suspected a stuck-open thermostat to begin with,
    > but now I see that the fan starts running as soon as I start the car,
    > albeit at a slow speed.
    >
    > Is it normal for the (hydraulic) fan to start turning even when the
    > engine is cold? The car is a 1995 Lexus ES300 with the 1MZ-FE engine.
    >
    > Thanks,
    > Tripurari


    How long have you been running the engine, and what is the outside air
    temperature?

    Although the cooling fan is turning, it may only be free-wheeling.
    --

    Ray O
    (correct punctuation to reply)



  3. #3
    Tegger
    Guest

    Default Re: Engine not warming up

    singh.tripurari@gmail.com wrote in news:809d5d6f-2b55-4fb4-8623-
    ffe62fa08d48@z28g2000prd.googlegroups.com:

    > My car's engine isn't warming up sufficiently according to the
    > temperature gauge. I suspected a stuck-open thermostat to begin with,
    > but now I see that the fan starts running as soon as I start the car,
    > albeit at a slow speed.
    >
    > Is it normal for the (hydraulic) fan to start turning even when the
    > engine is cold? The car is a 1995 Lexus ES300 with the 1MZ-FE engine.
    >




    Even if the fan were coming on inappropriately, the thermostat would
    prevent excessive engine cooling.

    I'll bet you've got a thermostat that's past its "best before" date.

    --
    Tegger


  4. #4
    Tegger
    Guest

    Default Re: Engine not warming up

    Tegger <invalid@invalid.inv> wrote in news:Xns9B7CA864D90BBtegger@
    208.90.168.18:

    > singh.tripurari@gmail.com wrote in news:809d5d6f-2b55-4fb4-8623-
    > ffe62fa08d48@z28g2000prd.googlegroups.com:
    >
    >> My car's engine isn't warming up sufficiently according to the
    >> temperature gauge. I suspected a stuck-open thermostat to begin with,
    >> but now I see that the fan starts running as soon as I start the car,
    >> albeit at a slow speed.
    >>
    >> Is it normal for the (hydraulic) fan to start turning even when the
    >> engine is cold? The car is a 1995 Lexus ES300 with the 1MZ-FE engine.
    >>

    >
    >
    >
    > Even if the fan were coming on inappropriately, the thermostat would
    > prevent excessive engine cooling.
    >
    > I'll bet you've got a thermostat that's past its "best before" date.
    >




    And are you sure you've got a viscous clutch fan? Didn't think they used
    those anymore.


    --
    Tegger


  5. #5
    Ray O
    Guest

    Default Re: Engine not warming up


    "Tegger" <invalid@invalid.inv> wrote in message
    news:Xns9B7CAE2B4A90Etegger@208.90.168.18...
    > Tegger <invalid@invalid.inv> wrote in news:Xns9B7CA864D90BBtegger@
    > 208.90.168.18:
    >
    >> singh.tripurari@gmail.com wrote in news:809d5d6f-2b55-4fb4-8623-
    >> ffe62fa08d48@z28g2000prd.googlegroups.com:
    >>
    >>> My car's engine isn't warming up sufficiently according to the
    >>> temperature gauge. I suspected a stuck-open thermostat to begin with,
    >>> but now I see that the fan starts running as soon as I start the car,
    >>> albeit at a slow speed.
    >>>
    >>> Is it normal for the (hydraulic) fan to start turning even when the
    >>> engine is cold? The car is a 1995 Lexus ES300 with the 1MZ-FE engine.
    >>>

    >>
    >>
    >>
    >> Even if the fan were coming on inappropriately, the thermostat would
    >> prevent excessive engine cooling.
    >>
    >> I'll bet you've got a thermostat that's past its "best before" date.
    >>

    >
    >
    >
    > And are you sure you've got a viscous clutch fan? Didn't think they used
    > those anymore.
    >
    >
    > --
    > Tegger
    >


    Some Camrys and ES 300's around that vintage had a cooling fan that was
    hydraulically driven. The PS pump also powered the cooling fan. I don't
    remember why Toyota designed that system, but IMO, it was an unnecessarily
    complex design because there were electronic sensors and electric controls
    on valves on the PS fluid circuit to modulate how fast the cooling fans
    turned.
    --

    Ray O
    (correct punctuation to reply)



  6. #6
    Tegger
    Guest

    Default Re: Engine not warming up

    "Ray O" <rokigawa@NOSPAMtristarassociates.com> wrote in
    news:gip3ka$q1e$2@news.motzarella.org:

    >
    > "Tegger" <invalid@invalid.inv> wrote in message
    > news:Xns9B7CAE2B4A90Etegger@208.90.168.18...
    >> Tegger <invalid@invalid.inv> wrote in news:Xns9B7CA864D90BBtegger@
    >> 208.90.168.18:
    >>
    >>> singh.tripurari@gmail.com wrote in news:809d5d6f-2b55-4fb4-8623-
    >>> ffe62fa08d48@z28g2000prd.googlegroups.com:
    >>>
    >>>> My car's engine isn't warming up sufficiently according to the
    >>>> temperature gauge. I suspected a stuck-open thermostat to begin
    >>>> with, but now I see that the fan starts running as soon as I start
    >>>> the car, albeit at a slow speed.
    >>>>
    >>>> Is it normal for the (hydraulic) fan to start turning even when the
    >>>> engine is cold? The car is a 1995 Lexus ES300 with the 1MZ-FE
    >>>> engine.
    >>>>
    >>>
    >>>
    >>>
    >>> Even if the fan were coming on inappropriately, the thermostat would
    >>> prevent excessive engine cooling.
    >>>
    >>> I'll bet you've got a thermostat that's past its "best before" date.
    >>>

    >>
    >>
    >>
    >> And are you sure you've got a viscous clutch fan? Didn't think they
    >> used those anymore.
    >>
    >>
    >>
    >>

    >
    > Some Camrys and ES 300's around that vintage had a cooling fan that
    > was hydraulically driven. The PS pump also powered the cooling fan.
    > I don't remember why Toyota designed that system, but IMO, it was an
    > unnecessarily complex design because there were electronic sensors and
    > electric controls on valves on the PS fluid circuit to modulate how
    > fast the cooling fans turned.




    That's bizarre. Considering the weight and cost of a hydraulic system
    versus a simple electric motor, I'm a bit surprised Toyota would bother.


    --
    Tegger


  7. #7
    Jeff
    Guest

    Default Re: Engine not warming up

    On Dec 22, 6:06*pm, singh.tripur...@gmail.com wrote:
    > On Dec 22, 4:33*pm, "Ray O" <rokig...@NOSPAMtristarassociates.com>
    > wrote:
    >
    >
    >
    > > <singh.tripur...@gmail.com> wrote in message

    >
    > >news:809d5d6f-2b55-4fb4-8623-ffe62fa08d48@z28g2000prd.googlegroups.com....

    >
    > > > My car's engine isn't warming up sufficiently according to the
    > > > temperature gauge. I suspected a stuck-open thermostat to begin with,
    > > > but now I see that the fan starts running as soon as I start the car,
    > > > albeit at a slow speed.

    >
    > > > Is it normal for the (hydraulic) fan to start turning even when the
    > > > engine is cold? The car is a 1995 Lexus ES300 with the 1MZ-FE engine.

    >
    > > > Thanks,
    > > > Tripurari

    >
    > > How long have you been running the engine, and what is the outside air
    > > temperature?

    >
    > > Although the cooling fan is turning, it may only be free-wheeling.
    > > --

    >
    > > Ray O
    > > (correct punctuation to reply)

    >
    > The fan starts up as soon as I start the car at roughly 30 degrees
    > outside air temperature. The car then proceeds to warm up to the
    > quarter-way mark on the gauge. If I'm stuck in traffic with the engine
    > running but reduced airflow through the radiator, it does warm up
    > further and on a few occasions has reached the normal mid-point mark.
    >
    > Thanks,
    > Tripurari


    Have you tried putting cardboard in front of the radiator? You may
    also have a bad thermostat.


  8. #8
    Ray O
    Guest

    Default Re: Engine not warming up


    <singh.tripurari@gmail.com> wrote in message
    news:e92a93dd-9104-4523-bca4-b952ad4ec2b1@g39g2000pri.googlegroups.com...
    On Dec 22, 4:33 pm, "Ray O" <rokig...@NOSPAMtristarassociates.com>
    wrote:
    > <singh.tripur...@gmail.com> wrote in message
    >
    > news:809d5d6f-2b55-4fb4-8623-ffe62fa08d48@z28g2000prd.googlegroups.com...
    >
    > > My car's engine isn't warming up sufficiently according to the
    > > temperature gauge. I suspected a stuck-open thermostat to begin with,
    > > but now I see that the fan starts running as soon as I start the car,
    > > albeit at a slow speed.

    >
    > > Is it normal for the (hydraulic) fan to start turning even when the
    > > engine is cold? The car is a 1995 Lexus ES300 with the 1MZ-FE engine.

    >
    > > Thanks,
    > > Tripurari

    >
    > How long have you been running the engine, and what is the outside air
    > temperature?
    >
    > Although the cooling fan is turning, it may only be free-wheeling.
    > --
    >
    > Ray O
    > (correct punctuation to reply)


    The fan starts up as soon as I start the car at roughly 30 degrees
    outside air temperature. The car then proceeds to warm up to the
    quarter-way mark on the gauge. If I'm stuck in traffic with the engine
    running but reduced airflow through the radiator, it does warm up
    further and on a few occasions has reached the normal mid-point mark.

    Thanks,
    Tripurari
    **************
    That sounds more like a thermostat that is stuck in the open position. My
    guess is that the fan is just free-wheeling. If the thermostat is original,
    it is probably worth replacing it.
    --

    Ray O
    (correct punctuation to reply)



  9. #9
    Ray O
    Guest

    Default Re: Engine not warming up


    "Tegger" <invalid@invalid.inv> wrote in message
    news:Xns9B7CB5626BB57tegger@208.90.168.18...
    > "Ray O" <rokigawa@NOSPAMtristarassociates.com> wrote in
    > news:gip3ka$q1e$2@news.motzarella.org:
    >
    >>
    >> "Tegger" <invalid@invalid.inv> wrote in message
    >> news:Xns9B7CAE2B4A90Etegger@208.90.168.18...
    >>> Tegger <invalid@invalid.inv> wrote in news:Xns9B7CA864D90BBtegger@
    >>> 208.90.168.18:
    >>>
    >>>> singh.tripurari@gmail.com wrote in news:809d5d6f-2b55-4fb4-8623-
    >>>> ffe62fa08d48@z28g2000prd.googlegroups.com:
    >>>>
    >>>>> My car's engine isn't warming up sufficiently according to the
    >>>>> temperature gauge. I suspected a stuck-open thermostat to begin
    >>>>> with, but now I see that the fan starts running as soon as I start
    >>>>> the car, albeit at a slow speed.
    >>>>>
    >>>>> Is it normal for the (hydraulic) fan to start turning even when the
    >>>>> engine is cold? The car is a 1995 Lexus ES300 with the 1MZ-FE
    >>>>> engine.
    >>>>>
    >>>>
    >>>>
    >>>>
    >>>> Even if the fan were coming on inappropriately, the thermostat would
    >>>> prevent excessive engine cooling.
    >>>>
    >>>> I'll bet you've got a thermostat that's past its "best before" date.
    >>>>
    >>>
    >>>
    >>>
    >>> And are you sure you've got a viscous clutch fan? Didn't think they
    >>> used those anymore.
    >>>
    >>>
    >>>
    >>>

    >>
    >> Some Camrys and ES 300's around that vintage had a cooling fan that
    >> was hydraulically driven. The PS pump also powered the cooling fan.
    >> I don't remember why Toyota designed that system, but IMO, it was an
    >> unnecessarily complex design because there were electronic sensors and
    >> electric controls on valves on the PS fluid circuit to modulate how
    >> fast the cooling fans turned.

    >
    >
    >
    > That's bizarre. Considering the weight and cost of a hydraulic system
    > versus a simple electric motor, I'm a bit surprised Toyota would bother.
    >
    >
    > --
    > Tegger
    >


    It was probably one of those "seemed like a good idea at the time" deals but
    I agree, a simple electric motor would be much simpler than a hydraulic
    system.
    --

    Ray O
    (correct punctuation to reply)



  10. #10
    ransley
    Guest

    Default Re: Engine not warming up

    On Dec 22, 5:06*pm, singh.tripur...@gmail.com wrote:
    > On Dec 22, 4:33*pm, "Ray O" <rokig...@NOSPAMtristarassociates.com>
    > wrote:
    >
    >
    >
    >
    >
    > > <singh.tripur...@gmail.com> wrote in message

    >
    > >news:809d5d6f-2b55-4fb4-8623-ffe62fa08d48@z28g2000prd.googlegroups.com....

    >
    > > > My car's engine isn't warming up sufficiently according to the
    > > > temperature gauge. I suspected a stuck-open thermostat to begin with,
    > > > but now I see that the fan starts running as soon as I start the car,
    > > > albeit at a slow speed.

    >
    > > > Is it normal for the (hydraulic) fan to start turning even when the
    > > > engine is cold? The car is a 1995 Lexus ES300 with the 1MZ-FE engine.

    >
    > > > Thanks,
    > > > Tripurari

    >
    > > How long have you been running the engine, and what is the outside air
    > > temperature?

    >
    > > Although the cooling fan is turning, it may only be free-wheeling.
    > > --

    >
    > > Ray O
    > > (correct punctuation to reply)

    >
    > The fan starts up as soon as I start the car at roughly 30 degrees
    > outside air temperature. The car then proceeds to warm up to the
    > quarter-way mark on the gauge. If I'm stuck in traffic with the engine
    > running but reduced airflow through the radiator, it does warm up
    > further and on a few occasions has reached the normal mid-point mark.
    >
    > Thanks,
    > Tripurari- Hide quoted text -
    >
    > - Show quoted text -


    Use a toy thermostat Ive had bad aftermarket ones that left me cold
    all winter. Yours is likely not closing. The radiator cap should be
    tested or replaced if you dont see the level of the resivour change
    from a cold to hot motor. There are no wires going to the fan? Dont
    use more than 50% antifreeze unless you live where its needed.

Page 1 of 2 12 LastLast

Similar Threads

  1. Global Warming
    By Go Mavs in forum alt.autos.toyota
    Replies: 144
    Last Post: 04-24-2007, 12:33 AM
  2. OT Global Warming?
    By Scott in Florida in forum alt.autos.toyota
    Replies: 174
    Last Post: 02-05-2007, 08:26 AM
  3. Global warming
    By in forum alt.autos.gm
    Replies: 16
    Last Post: 02-04-2007, 05:35 PM
  4. dB warming up his car to go to the store
    By duty-honor-country in forum rec.autos.makers.chrysler
    Replies: 4
    Last Post: 09-11-2006, 11:03 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •