Questions & Answers for: GMC Jimmy iac sensor

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...drive it give it gas it runs great what would cause that. sounds like it could be a problem in the IAC circuit. The Idle Air Control valve manages how much air gets into the engine while @ idle. It ...

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...see you checking Coils, Ignition Timing, TPS, IAC Selenoid, MAP Sensor, Alternator Output Voltage, Vacuum Leaks, Cylinder Compression. Let's check those things and we go from there !! Good

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...the simple things, air cleaner filter,plugs, wires, cap, rotor, fuel filter. check all connectors,vacuum hoses,and replace the pcv valve. Then the IAC,air flow meter,map sensor and the

...IAC sensor (4). Remove the manifold absolute pressure (MAP) sensor electrical connector from the MAP sensor. Remove the water pump belt cover. Remove the TP sensor retaining screws electrical ...

...TPS, IAC motor, EGR valve, O2 sensor) and you will have to figure out which one (or more) is causing the problem. First check for error codes with an OBDI code checker and follow up on the

Question about 1993 Jimmy

1 Answer

...drive at idle. It acts like it is running rich. Injectors and oxygen sensor are new. Check the IAC valve ( idle air control ) maybe dirty and sticking. Clean with intake cleaner or replace IAC

...map sensor , it started but wont stay idle, dont know what to do at this point Idle is controlled by Idle Air Control (IAC) and the Throttle Position Sensor (TPS). Check these, and then the EGR

...IAC) or the MAF ( mass air control sensor). If it idles but stalls when you try to accelerate, then I would first suspect the TPS. You could throw a lot of money at this problem and not solve it. I ...

IAC valve 94 gmc jimmy v6 4.3L. whenever the engine gets to normal running temp it shuts down an won't start until engine is cool. Could this be a bad MAP sensor? Or fuel injector solenoid? Could be a

...on take off but runs fine then on changed spider, plugs, iac valve, to no avale. help please verify throttle position sensor voltage off idle. oscilloscope is best. on regulur voltmeter use min ...

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