I bought the car home and had to have a hose replaced the next day which was leaking too much oil.
It idles rough.
It misfires.
It runs too rich.
The spark plugs have been replaced three times in two months due to carbon deposits.
It is currently parked in my garage because it will not start.
Here is a list of everything that has been replaced in the last two months:
Fuel injectors, coil pack (twice), coil cover (twice), electronic control module, computer, oxygen sensor, manifold absolute pressure sensor, knock sensor, throttle position sensor, battery, spark plugs, catalytic converter (needs to be replaced again after two weeks of being replaced the first time), and two different heater hoses.
I have contacted the dealer whose only comments are "Sorry you are having problems".
It has nickel and dimed me to death.
Have a cylinder compression check done... (possible bad head gasket). Also could be bad fuel injector (s). Have them checked.
Definitely do a compression check. I've had to replace two (2) heads on mine due to cracking. I have been told there is a design flaw with the single cam Quad Four. I hate mine. Never again will I own a Pontiac.
Well maybe you just got a lemon or the quad 4s are a bad engine. In my '92 Grand Am SE 2dr. 3.3L V6 with 86,607.3 miles. I have not had any problems except for like a week or two it had problems staying running because it was sitting in a pile of snow for two years and was not prepped to sit for so long.
The Quad4's are notorious for MANY problems, including going through heads and head gaskets like they are going out of style, and intermittent stalling just to name a few. Why GM ever unleashed these pooches out on the public I'll never know.
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