1999 GMC Yukon "high idle speed" Questions

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...idle is high with a scanner look to data if trottle angle is at 0% if it is at 1 or 2% this why rpm is high means for pcm trottle plate is open too much. adjust with scanner relearn. hope it ...

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...throttle body it's a 2005 gmc Yukon I need to know how to adjust the idle speed relearn can you help me Be sure hard idle stop is not holding throttle open if high idle. the ecm on this controls ...

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...high idle Make sure that the ****** isn't slipping. oxygen sensor is not the problem for over idle speed, if it is bad or not responding the car will start shivering also known as Misfire. The ...

Question about GMC Yukon

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...idle high when taking off but it barely moves then I ease of accelerator and press it slow and it then go slow and increase speed later.any idea what's going on ? have the OBD codes checked and ...

...high speed do anyone know what will be the problem? coolant is full and temperature guage is ok what will be the problem There may not be anything wrong.Your computer has control of the fans and it ...

...idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 ...

...idle , ok on high end replace computer replace map replace o2 replace wires good fuel volume test good pressure 43 psi replaced intakes no hard starts starts just fine check your air intake control ...

...high at the rest position and decreases as the accelerator is applied. Throttle Body Assembly The throttle body assembly consists of the throttle body, the throttle position (TP) sensors, and the ...

Question about GMC Yukon

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...high idle. If the above are OK, it is a faulty HO2S. Never solder the HO2S wires. I dont think a low O2 sensor voltage would cause a no start issue unless a wire melted and crossed with a ground or ...

...AT THE THROTTLE BODY GASKET.IF ITS LEAKING OR BROKEN IT WILL CAUSE HIGH IDLE SPEED.IF ALL LOOKS GOOD.SCAN IT.CHECK FOR IDLE SPEED CONTROL FAULT.IF IDLE SPEED CONTROL GO BAD IT CAUSES HIGH IDLE

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