Question about 2002 Oldsmobile Alero

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2002 Alero 2.2L is miss firing and burning too much gas, a friend told me that is was running tooo rich??? Just alttle inside... I drove this car to work and it was fine.... I went to leave work and and car had no power. I drove about 6 miles home and the cat was cherry red. next day I had a friend replace the cat with a test pipe... car has alittle more power but burns way too much gas and is still missing.

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  • awalsh28 Jan 25, 2009

    thank you!

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Replace ignition system, start with coils, and coil pack housing under engine top cover. The plastic coil cover may be arking out. some people will tell you to look for "spider webs" on the plastic cover, don't you believe it!!! They go bad quite ofter and cost $50 a shot. also check your plugs, ONLY use autolite or ac delco REGULAR plugs, avoid bosch AT ALL COSTS.

Posted on Jan 25, 2009

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ecmurphy10
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SOURCE: 2002 alero 2.2L

There are many things that can cause this problem and it would take too long to try to diagnose without the proper equipment, I.E. OBD2 Scanner. There are just too many engine controls that could cause a misfire. You will have to take it into a shop for an engine diag. This will probably cost you in the range of 150-200, this price does not include the solution, that is entirely seperate. A scanner needs to be hook up to zero in on the problem area, and from there the problem can be tested appropriately.

Posted on Jan 22, 2009

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