Question about 1991 Buick Park Avenue

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Security system..somtimes starts sometimes doesnt? what does it need, how much?

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I had a 2000 GrandAm that did the same thing. Common GM problem that GM has no solution for short of replacing entire electrical system. Happens because the voltage drops or slows as the wiring and the system get older. A mechanic told me the best work around for this problem is to turn the key to "on" pause a few seconds then turn the key to "start" This gives the voltage time to travel thru the entire system . Following his instructions my car always started after that.
Sorry about the length and hope this will help get you by.

Posted on Jul 29, 2009

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Posted on Jan 02, 2017

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