I live in Norway and I have a Grand Am SE 3-Litre V6 1987.
For the last 2 months I have had BIG problems with the car. It ran
bad/stopped and the SES light came on. When I tried to start it up again it
stopped after about 2 seconds. Took it to a garage that replaced gasoline
pump relay, oil pressure sensor and the MAF sensor.
The car then ran fine for about a week. The same thing happened again, this
time in the town I had bought the car from a friend that works on and sells
cars. It seems that the problem came when the engine was warm. (Not
overheated). Replaced ignition module, oxygen sensor, temperature sensor,
spark plugs incl. wires, checked fuel injectors.
No result. Sometimes the car didn't start even with cold engine.
He then tried the MAF sensor from a Buick with the same engine. The car ran
perfect! He drove it for about 2 weeks before I went to pick it up.
The garage that had replaced the MAF sensor earlier had given me a new
sensor. I put that one in the car, looking forward to finally have it back
on the road. BUT the car still didn't run okay! The SES light came on and
the engine wasn't running correct. We got the sensor from the Buick again,
put it in the Grand Am and it was running fine. Drove it about 30 miles to
where the Buick was. Put the new MAF sensor in the Buick. The Buick was
running fine! The owner of the Buick still wouldn't let me trade sensors.
Took the new sensor back in the Grand Am and it was now running fine! That
is - for about 40 miles. Now the SES light came back on and the engine did
not run good/stopped.
Any ideas what can be the problem here? The Buick had a MAF sensor made by
AC Delco. The ones I had are made by Standard. I believe that is a much used
aftermarked brand. The part number is MF7834.
Please give me a hint anyone that believe they can help, I need the car so
bad, and so far I have used over $2000 on trying to get it fixed....