Question about 1991 Buick Park Avenue
Hi my 91 buick alarm went off with the keys in the ignition then the lock in the back would not unlock even if forced manually. Then it started getting hard to start and then didn't start at all. We replaced the coil and the ignition modual. It started but would not stay running. When it was running it ran very rough and would not stay running. The cataletic converter was glowing red hot and once again will not start. Any ideas or where to check next.
I think you got your answer to the alarm issue. I had the same problem with rough idling, lack of power, and the chugging that occured when going up hill. I have a 1991 Park Avenue with 190k miles. Fixing the catalytic converter helped, but the real problem was in the ignition control module. It seems that older buicks will heat these units to the point that the glue inside melts and eventually exposes the electronics. Look for glue or exposed wires below the ignition coil. It's a $100 part that you should be able to change yourself. I hope that helps.
Posted on Apr 07, 2009
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Posted on Jan 02, 2017
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