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I have a 1994 vw caravelle. after i start it the rpm goes up and down and before warming it tent to that the engine may stop. please help.

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First look for a vacuum leak in all the vacuum hoses leading to the throttle body and on the intake manifold itself. Sometimes it helps to use a piece of hose as a makeshift stethoscope to listen for tell-tale hissing at the site of a leak. If no leaks are found the problem could lie in a faulty idle air control valve

Posted on Apr 13, 2009

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Posted on Jan 02, 2017

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16501/P0117 - Engine Coolant Temperature Sensor (G62): Signal too Low Possible Symptoms
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