1985 Pontiac Fiero 2.5l 4 cyl. SE
When first starting, sometimes it idles fine. But when put under load the tach bounces all over the place and it runs rough. The whole car jerks.
Will continue to stumble for about 3-4 miles. Then its like nothing happened.
What is very odd - is no check engine light comes on and there are no codes stored in ECM.
Distributor cap & rotor
Spark plugs & wires
I checked the damper door under the vacuum motor to see if the Air Cleaner Temp Sensor was moving the door to regulate hot/cold air. And it is.
Mechanic suggested I look for leaks around intake manifold. But how do I get under by that to do that. Try to spray ether from underneath the car?
I really don't want to continue buying parts to guess at fixing it. The Air Cleaner Temp Sensor is $50 or more where I live.
Anyone else have any other ideas?
Much appreciated, thanks in advance.
have the same problem?
Friday, July 13th, 2012 AT 4:27 PM