Question about 2000 Chevrolet Impala

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2000 Impala:Hard start and couple times Idles extremly high

I have to crank it over 3 times as long for it to finally start. that happened after i had my injectors tooken out and cleaned. GM dealership did not find anything wrong. and my Idle speed was high a couple of times. could it all be caused by my IAC Valve or bothe injectors and that or what?

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The car has OBD2 technology, You wont be able to tell without special tools. The ignition components, timing, CKP & CMP sensor, fuel line pressure, misfires, and fuel quality all need to be looked at. But to answer your question, "over 3x cranking' could be timing or fuel pressure. A bad IAC would cause a rough idle, and if the injectors were bad then it would cause a misfire too.

Posted on Jun 03, 2009

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