the car idle surges after it warms up and I'm getting a lot of carbon out the exhaust I've changed air filter and spark plugs but it did no good
Mar 18, 2013 at 7:39 PM
1989 FORD RANGER
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It sounds to me like you have a vacuum leak. Check for that as well as cleaning the Idle air control valve if it is fuel injected.
Mar 18, 2013 at 11:38 PM