T STALLS AFTER A FEW BLOCKS

1998 Pontiac Grand Am

Tiny

jjobrien1

December, 11, 2006 AT 11:02 PM

I have a 1998 Grand Am with 130,000 miles. A few weeks ago it started to lose power at irregular intervals, usually when it is colder. It starts fine, I go a few blocks then I lose power and the check engine light comes on, and sometimes it stalls. To restart it I have to floor the gas then crank it. Once it goes thru this it runs fine and after a few miles the check engine light goes off. It can be fine for a few days or a couple of weeks then comes back. Problem has gotten worse over the last few weeks (as it has gotten colder). We have replaced the coils, housing etc plus with no real change. The code comes back as 'misfire' with no cylinder indication. The mechanics have not been able to trace anything down.

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Tiny

Canvis69@yahoo.com

December, 14, 2006 AT 4:04 PM

Make sure that the temp sensors, intake air and coolant, are reading properly.. If not the would run you to lean in the cold causing a misfire. Also make sure that there are no vacuum leaks, which again would lean it out Otherwise, it is most likely a crank, distributer, or fuel delivery problem including the maf and other sensors.

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