Results 1 to 3 of 3
Discuss 2000 Olds Alero problems in the alt.autos.gm forum at Car Dealer Forums; Can't figure this one out. 2000 Olds Alero with 3.4L v-6 & auto trans. Has ...
  1. #1
    DrFrye
    Guest

    Default 2000 Olds Alero problems

    Can't figure this one out. 2000 Olds Alero with 3.4L v-6 & auto trans. Has
    about 134K on it.

    The car usually starts fine, sometimes it takes a few attempts.
    It idles perfectly and accelerates well. The problem is when cruising at
    light throttle, the engine starts surging. You can feel it and also the
    tachometer shows it. Also, the transmission seems to start slipping almost
    like its getting ready to downshift. If I let off the gas to decelerate, it
    seems to smooth out. Likewise, if I accelerate it seems to work fine. The
    speedometer goes wacky too in the same manner. At light throttle it swings
    erratically from 0 to 60 or so but works fine when accelerating or
    decelerating.
    No check engine lights come on and the bulb is working. I connected an
    Actron scanner to it and it displayed PASS, no codes read.
    I think the engine & transmission are mechanically sound but something
    electrical is messing it up.
    I have heard several horror stories about this

    Help would be greatly appreciated



  2. #2
    Barney Gumble
    Guest

    Default Re: 2000 Olds Alero problems

    Possibly the Throttle Position Sensor?


    "DrFrye" <fryed@mchsi.com> wrote in message
    news:KBp2h.265745$1i1.39063@attbi_s72...
    > Can't figure this one out. 2000 Olds Alero with 3.4L v-6 & auto trans.
    > Has about 134K on it.
    >
    > The car usually starts fine, sometimes it takes a few attempts.
    > It idles perfectly and accelerates well. The problem is when cruising at
    > light throttle, the engine starts surging. You can feel it and also the
    > tachometer shows it. Also, the transmission seems to start slipping
    > almost like its getting ready to downshift. If I let off the gas to
    > decelerate, it seems to smooth out. Likewise, if I accelerate it seems to
    > work fine. The speedometer goes wacky too in the same manner. At light
    > throttle it swings erratically from 0 to 60 or so but works fine when
    > accelerating or decelerating.
    > No check engine lights come on and the bulb is working. I connected an
    > Actron scanner to it and it displayed PASS, no codes read.
    > I think the engine & transmission are mechanically sound but something
    > electrical is messing it up.
    > I have heard several horror stories about this
    >
    > Help would be greatly appreciated
    >




  3. #3
    DrFrye
    Guest

    Default Re: 2000 Olds Alero problems

    Though it could be, replaced it, same problem.
    Also replaced: VSS, MAP sensor, MAF sensor. Never gets a check engine light.
    Starting to wonder it it's a transmission problem?

    Dale

    "Barney Gumble" <barneyg@springfield.net> wrote in message
    news:_UG2h.4171$B31.1624@newssvr27.news.prodigy.ne t...
    > Possibly the Throttle Position Sensor?
    >
    >
    > "DrFrye" <fryed@mchsi.com> wrote in message
    > news:KBp2h.265745$1i1.39063@attbi_s72...
    >> Can't figure this one out. 2000 Olds Alero with 3.4L v-6 & auto trans.
    >> Has about 134K on it.
    >>
    >> The car usually starts fine, sometimes it takes a few attempts.
    >> It idles perfectly and accelerates well. The problem is when cruising at
    >> light throttle, the engine starts surging. You can feel it and also the
    >> tachometer shows it. Also, the transmission seems to start slipping
    >> almost like its getting ready to downshift. If I let off the gas to
    >> decelerate, it seems to smooth out. Likewise, if I accelerate it seems
    >> to work fine. The speedometer goes wacky too in the same manner. At
    >> light throttle it swings erratically from 0 to 60 or so but works fine
    >> when accelerating or decelerating.
    >> No check engine lights come on and the bulb is working. I connected an
    >> Actron scanner to it and it displayed PASS, no codes read.
    >> I think the engine & transmission are mechanically sound but something
    >> electrical is messing it up.
    >> I have heard several horror stories about this
    >>
    >> Help would be greatly appreciated
    >>

    >
    >




Similar Threads

  1. Replies: 0
    Last Post: 02-07-2012, 03:49 PM
  2. 94 Olds Cutlass Electrical Problems
    By 94Cutlass1215 in forum alt.autos.gm
    Replies: 2
    Last Post: 05-18-2008, 10:33 PM
  3. 2000 alero rough idle from cold start
    By jdmcfish in forum alt.autos.gm
    Replies: 5
    Last Post: 02-11-2008, 11:34 PM
  4. 1992 olds won't start and other problems
    By dollarbill78 in forum alt.autos.gm
    Replies: 0
    Last Post: 11-21-2006, 02:06 PM
  5. 1992 Olds Ninety-Eight Starting Problems
    By BigBob in forum alt.autos.gm
    Replies: 3
    Last Post: 11-14-2006, 11:18 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
  •