Question about 1999 Oldsmobile Alero

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Engine studdering engine has a hard time starting, studders when pulling out - tach fluctuates from 1/2 to 1 1/2 when stopped at a red light or in park or nuetral(when this happens, the engine looks like its gonna jump right off the frame) . Backfires when going downhill. This has happened before and it was bad coilpacks. Could anyone tell me how many there are and how hard it is to change them and also do you think that sounds like the right solution to the problem.

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I hate to say i had to replace the intake gasket. but do a little tune up first change fuel filter plugs wire spark plugs besure to get the spark plugs your engine call for.some call for platinum. the 98 on up 2000s model call for platinum.have some one check your fuel pressure . it should be 41 to 47 psi. if you know somebody with a code scanner . tell them to scan your car make sure your torque converter on tranny not staying locked up. check under hood for vacuum leaks. good luck

Posted on Mar 17, 2009


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