1988 Grand Am quad 4 - no power

Tiny
PAPSHOME
  • MEMBER
  • 1988 PONTIAC GRAND AM
I am trying to determine why a 1988 Grand am with 2.3 quad 4 automatic has lost power and somewhat rough idle. We got it cheap. The previous owner said it would hesitate on steep hills. I drove it for about 60 miles toward home before it skipped for the first time. After making a stop, it seemed to be misfiring and backfiring, then caught and was OK. But then the first big hill after that it lost power and backfired - just making the hill. A mechanic did lokk at it and said all coils seem to be firing. I changed plugs (which looked pretty new). No difference. I changed fuel filter - looked original (fuel very dirty in filter). This helped idle but still has no power and won't even rev up much when in gear. Where to from here?
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Monday, July 23rd, 2007 AT 8:47 PM

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Tiny
TBDK
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Check and possibly replace the air filter.
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Tuesday, July 24th, 2007 AT 6:02 PM

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