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Why suddenly the car have idle high 2700 rpm and does not change the gears and what parts can be faulted?
Wiki User
∙ 17y ago
Sounds like the Idle Air Control valve (IAC) acting up and if it is, it's located on the rear pass. side of the engine, left of the Throttle Body and a real pain in the a** to change. There is a vacuum line that lays across the intake manifold past halfway down that goes to the pass. side of the car, it's a skinny black tubing that gets brittle from the intake manifold heat and has a tendency to crack and sometimes just break away from the rubber fitting. It can cause the idle to go high too. Hope this helps.
Wiki User
∙ 17y ago
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