Question about 1995 Pontiac Grand Am

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Engine problem I have a 1995 grand am with a quad four. It started running very hard one day so we put a new fuel filter and spark plugs in it but that didn't seem to help. We then took it to a friend?s garage and found out that the two right cylinders aren?t firing. We put in a new coil on that side and that didn't help. We know that there are sparks when the plugs are outside of the cylinder and that the cylinder is good because we did a compression check. If you have any idea of what the problem might be your advice would be greatly appreciated.

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  • Danny Taylor May 11, 2010

    remove the radiator cap and crank the engine what happens if you get a jet of water blown head and yes it is possible for the head to be blown and compression is still ok also remove valve cover these engines have a bad problem about breaking the rocker arms on the top check these....

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I would look at the injectors being dirty or not coming on when theyre supposed to also older injectors cause alot of rough running probs

Posted on Jun 16, 2008

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My 1995 Pontiac Grand Prix SE is not wanting to start. It's had this problem for a while but never this bad. I've changed the fuel filter and the spark plugs and it ran for a day or 2, now it wont crank at...


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1 Answer

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I need help


this is caused because a misfire, misfire will be caused by defective or misrouted spark plug wires, make sure to check the firing order, on the plug wires, and if you just replace the spark plugs, then most likelly the wires are misrouted, and the cat gets hot because unburnt fuel like runing too rich, and will be related with misfire.

Aug 08, 2008 | 1995 Pontiac Grand Am

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