SOURCE: car runs rough
check the compression of each cylinder, they should be no more than 5% difference between cylinders, so if the highest is 160 PSI then the lowest should not be lower than 150 PSI. also test the fuel injectors for proper flow, check for intake manifold vacuum leaks as well.
SOURCE: car loses power, runs rough, like it is trying to choke itself
YOU have a bad coil pack. they are about $50. and not too hard to replace. the trick is finding the bad one. the good news is there are only 3 to choose from ( if its a v6)
SOURCE: 96 firebird is having problems,
Have you ran a diagnotic check to see what codes are coming up?
Throwing parts at the problem will get expensive. It will also ruin other parts (Like your catalytic converter), when your engine is misfiring and not running properly. Your vehicle is an OBDII system, fix the problems in the order they appear (then clear, run and recheck)...meaning, one problem can cause another and so on. Fixing one problem may correct the other ones too.
You may get lucky with the shotgun approach, but usually not.
Run a diagnostic test, at least you'll know where to start looking for the problem.
SOURCE: 2001 BMW 325i problem: Car runs very rough, but no warning lights
Sounds like a fuel problem , have you changed the fuel filter in a while ? could be the knock sensor or the knock sensor module needs to be replaced.
SOURCE: 2003 chevy cavalier(2.2 Ecotech but
Hi, did you check the fuel pressure regulator? A torn diaphram will cause these symptoms. The regulator is mounted to the end of the fuel rail on top of the engine and looks like the picture below. Pull the vacuum hose off the regulator and plug it with a golf tee. Then start the engine and watch for gas to come out of the regulator vacuum port. If it does, replace the regulator and you should be good. Please let me know if you have any questions, and thanks for using FixYa.
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