Results 1 to 2 of 2
Discuss Siezed screw in 2.8 plenum in the alt.autos.gm forum at Car Dealer Forums; I'm experiencing starting problems with a 2.8 MPI. I have a donor car from which ...
  1. #1
    James Goforth
    Guest

    Default Siezed screw in 2.8 plenum

    I'm experiencing starting problems with a 2.8 MPI. I have a donor car
    from which I was going to rob the IAC motor, and upon inspection one of
    the two screws holding it in had been snapped off at the screw head.
    Then I looked at the actual car I'm working on and it's the same exact
    deal.
    So far, just the one screw apparently has been adequate to hold in the
    IAC to do its job. But I'm apprehensive about attempting to remove the
    one remaining screw for fear of it snapping off as well and having BOTH
    screws snapped off, a big hassle: Would applying heat to the
    surrounding aluminum likely allow it to be loosened?
    I know it's just electrolytic corrosion from the dissimilar metals.
    Since both of my engines had the same thing, I'd expect to see this in
    junkyard engines as well.
    As an aside, anyone know what else might make an '88 2.8 take up to 5
    seconds of cranking before starting--then run perfectly normal after
    that? I usually have to give it a little gas before it will start, no
    codes. TIA


  2. #2
    The Adams Family
    Guest

    Default Re: Siezed screw in 2.8 plenum

    Try soaking the screw with Blaster penetrating oil a few days before trying
    to remove it. Then before loosening the screw tap it a couple of times on
    the end with a hammer, this jars the threads and helps break the corrosion
    loose.

    The only thing that comes to mind with your starting problem would be the
    tank mounted electric fuel pump.


    "James Goforth" <jamiegoforth@webtv.net> wrote in message
    news:16006-44F6BCA4-202@storefull-3272.bay.webtv.net...
    > I'm experiencing starting problems with a 2.8 MPI. I have a donor car
    > from which I was going to rob the IAC motor, and upon inspection one of
    > the two screws holding it in had been snapped off at the screw head.
    > Then I looked at the actual car I'm working on and it's the same exact
    > deal.
    > So far, just the one screw apparently has been adequate to hold in the
    > IAC to do its job. But I'm apprehensive about attempting to remove the
    > one remaining screw for fear of it snapping off as well and having BOTH
    > screws snapped off, a big hassle: Would applying heat to the
    > surrounding aluminum likely allow it to be loosened?
    > I know it's just electrolytic corrosion from the dissimilar metals.
    > Since both of my engines had the same thing, I'd expect to see this in
    > junkyard engines as well.
    > As an aside, anyone know what else might make an '88 2.8 take up to 5
    > seconds of cranking before starting--then run perfectly normal after
    > that? I usually have to give it a little gas before it will start, no
    > codes. TIA
    >




    ----== Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News==----
    http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups
    ----= East and West-Coast Server Farms - Total Privacy via Encryption =----

Similar Threads

  1. eBay Find of the Day: Court-siezed Brawn GP/USF1 transport trailers
    By CarIndustryNews in forum Car Industry News
    Replies: 0
    Last Post: 04-12-2010, 03:40 PM
  2. to much gas in the intake plenum
    By jed in forum alt.autos.dodge
    Replies: 0
    Last Post: 12-21-2007, 01:44 AM
  3. Need Plenum
    By Bob1234 in forum alt.autos.gm
    Replies: 4
    Last Post: 09-12-2006, 01:15 AM

Posting Permissions

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