Question about 1992 Geo Storm

3 Answers

Why doesn't it run well?

I have a 92 geo storm. it will run well if you give it about half throttle but when you put it to the floor the rpms will drop and it just dont seem like it is getting enought gas. i changed the fuel filter and that didnt help.

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  • Geo Master
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Which engine? 1 cam, 1..6L or twin, or the 1.8L twin cam,( that bends valves in the head when the belt slips,etc)
lots of reasons,, over 50 in fact
want us to guess, 1 in 50 or all 50.?
if misfiring , new spark plugs and wires. cap.rotor.
a tuneup.
if already tuned up, a clean aircleaner with filter or just fuel filter?>
do the whole 60k mile tune up.
check spark timing yet, if way of the cam belt slipped,
(a 5 min check that makes, common ignored belts easy to find)

Posted on May 06, 2015

  • 4 more comments 
  • Juriy Hawrylak
    Juriy Hawrylak May 06, 2015

    i have the list of 50, if you need it, but the tests are 10x less. so that is why we do testing (after a full tuneup) and on all very old Isuzu engines (it is) we do a spark timing test first. then compression. this is called basics' in school for ASE . all the tests are easy, and cheap tools. do you want to guess or Test? it's your call.!

  • Anonymous May 06, 2015

    mine had 10 year old spark plugs.

  • Juriy Hawrylak
    Juriy Hawrylak May 06, 2015

    mine had,low fuel pressure.

  • Anonymous May 06, 2015

    mine had low compression from the slipped timing belt.

  • Anonymous May 06, 2015

    mine had bad FPR.

  • Anonymous May 06, 2015

    mine had burned head valves.

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  • 10 Answers

I had the same problem and i had to replace the fuel pump

Posted on Feb 14, 2009

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  • Expert
  • 137 Answers

Try unplugging the throttle position sensor, it's on the opposite side of where the throttle cable hooks up, if it helps then replace it

Posted on May 05, 2015

  • Anonymous May 05, 2015

    2009 post , car is sold now.

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