I have a 95 cadillac eldorado. If i put my car in park, the rpm hand jumps around and when it jumps up the car revs up. what the problem?
CSP, It sounds like you have a vacuum leak that is causing the IAC ( idle air control ) motor to move in and out trying to control the idle. Check all vacuum hoses on the engine for disconnect, cracked or damaged. If the hoses crack when you bend them, they need to be replaced.
Let me know what you find and we can go from there.
Regards,
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95 cadillac eldorado car shutting off like its low fuel but its a half of a tank
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