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\015 Sometimes the car battles to start and it cuts out everytime, then when it is running, the car revs to 4000 and drops the whole time, for quite some time and then goes back to the normal revs again. What could be causing this problem?\015 Posted / edited by AnonymousUser on : 19-03-2018

Answers :

My car rev high when hi start it and when hi stop the idle speed gose heigh what could it be
A big vacuum leak will do this it can be from a open PCV valve sticking open EGR valve to a sticking a IAC (idle air control valve) sticking open. You basically have something get stuck and closing.
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