Questions & Answers for: GMC Suburban iac sensor

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...IAC operation and it checked OK. This has been going on for about 6 months. It seems to run a bit better after replacing the fuel pump but still has problems. I have had it to a shop with no success. ...

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...IAC) motor ? The oxygen (O² sensor) ? The exhaust gas recirculation (EGR) valve ? The engine coolant temperature (ECT) sensor Disconnect the fuel pipes from the fuel pipes. Remove the distributor cap ...

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Question about 1995 Suburban

1 Answer

...sensor(throttle positioning), fuel pump and relay (), spark-plugs, wires, cap&rotor, air&fuel filter, PCV, ignition control module (can be tested for free at AUTO-ZONE or most other part ...

Question about 1994 Suburban

3 Answers

sensor, and air control solenoid, fuel filter, air filter. mcdevito75 here, Sounds like a faulty voltage regulator, it"s 1 unit with the alternator, change the alternator, also the alt. supplies juice

...sensor and IAC sensor are usually located at the side of the throttle body



Fig. Fig. 4: Idle Air Control (IAC) valve wiring and terminal identification
REMOVAL & ...

Question about 1995 Suburban

1 Answer

1995 P30 7.4L IDLE HI 1200 RPM SHOULD BE 850 RPM can be the IAC valve, purge valve, and possibly MAF sensor.

...iac-valve.html ---------- Engine quits at idle? http://repairhelpcenter.blogspot.com/2011/10/engine-quits-at-idle.html  ------------ Car overheats and Air blows hot at idle? ...

...misfires Sound like a MAP sensor or it is being affected by a false air like EGR,You say hard to start,it can easily start with a EGR open because the IAC will step close,Check vacuum hose ...

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