Rough running engine - Page 4 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1987-1991 Parley with regards to your 1987 to 1991 Bonneville, Olds 88 or Buick Le Sabre Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 05-18-2005, 11:03 PM   #31
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We wanna give great thanks to all that participated in the fixing of my car, this issue is now done we replaced the computer with a brand nes one (114.00) but now it runs great. I wanna give special thanks to the ones that gave us good advice on ways to check different things to pinpoint the trouble.
When I got out there to work on it we first started with the compression test and was satisfied at 145-150 psi per cylinder, then we did the test with the lightbulb and seen that the light stayed on all the time so just to make sure we switched the replaced injector back into a different cylinder and still had the same trouble with the #3 cylinder even with a switch of the injectros using one from a different cylinder, the #3 cylinder gave no noise at all.
so then we ran to the parts store grabbed the puter switched it in and she runs great now.
We did one last listen to all the injectors and they all have nice sounds to them they all sound better than what they did before the puter switch, so it must've been affecting all the cylinders, so now maybe the car will have more power even though it didnt seem to lack any till recently,
so like I did say thanks for all the info and ya'll are great and will definitely keep track of this site
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Old 05-18-2005, 11:22 PM   #32
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Great to hear it is fixed and thanks for letting us know what the problem was.
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Old 05-20-2005, 10:09 AM   #33
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Glad to hear my light check worked for ya. Its quick, easy and doesn't require special tool to pinpoint injector problems. You made my day....
Happy motoring.
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