Question about 1992 Buick Riviera

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1986 Riviera random Stalling at idle

I have a 1986 Buick Riviera it stalls randomly at idle after being warmed up to a normal operating temperature. One day after it stalling out on me and not starting back up i took a spark tester to the coils and got nothing from 2 of the then when moving to the second one there was nothing for a couple seconds then it began to show spark and the car started. I just replaced the ignition control module took it for a short test drive it did it once about a mile away drove the mile back home after it starting back up pretty quickly and no problems on the drove back home. I let the car sit and idle for a few minutes in the drive way with no problems there is there something else i should check to see it is bad or should i assume that it was just a fluke and my problem is solved?

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These are also notorious for the crankshaft position sensor (CPS) failing intermittently and causing this same issue.Some of the vibration dampers (crankshaft pulley) were also known for the reluctor rings that trigger the CPS for coming loose and causing a timing issue and/or destroying CPS.Be sure to clean the mounting surfaces for module of any dirt or corrosion and apply some good dielectric grease to surfaces. Check the engine grounds and battery + connections for clean and tight as well.These are some other notorious problems with these. Good luck and hope this helps! Rate me please.

Posted on Jan 31, 2009

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SOURCE: 1986 Riviera random Stalling at idle

Chances are your distributor cap, it may have carbon buildup ad is acting like a jumper wire to other spark plugs or it may have a very fine crack in it with carbon buildup shorting two plugs together. It's best to have it replaced, they don't cost that much and it's easy.

Posted on Apr 19, 2009

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1986 Riviera random Stalling at idle


Chances are your distributor cap, it may have carbon buildup ad is acting like a jumper wire to other spark plugs or it may have a very fine crack in it with carbon buildup shorting two plugs together. It's best to have it replaced, they don't cost that much and it's easy.

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