Questions & Answers for: GMC Yukon Denali iac sensor

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Question about 2001 Yukon Denali

1 Answer

where is Bank 1 sensor 1 located on a 2001 Yukon Denali. I can only find one located on drivers side after cat.( I had the code read it was a po 138 hearter sensor malfun. bank 1 sensor 1) I have been

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Question about 2001 Yukon Denali

2 Answers

Re: GMC Denali XL. "Service Engine Soon" light goes on. My son checked it and it it reads on his gadget: Heater Bank Sensor 1 Bank 1. How important is this to have this fixed. Right away, no rush? How

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1999 GMC Tahoe 5.7L engine trying to locate O2 sensor bank 1? there are 4 on the vehicle 2 before the cataylic convertor and 2 after. Which one would it be? right front? left front? right rear? left ...

Question about 2002 Yukon Denali

2 Answers

...valve .have u ever heard of this. There is no such thing as a "cold start valve" but there is an IAC motor that adjusts the idle speed, and they can fail/stick and not turn on the check enging ...

Question about 2002 Yukon Denali

1 Answer

flooding at idle. Clears some on acceleration and at road speed. I have replaced 3 o2 sensors and the mass Air flow sensor You need to check the map sensor & also check the Throttle Pos. sensor ..

...the throttle body with air intake cleaner and toothbrush. if the throttle looks clean, then the iac motor is sluuggish.if it has a throttle cable you can replace just the IAC motor. if it ...

Question about 2001 Yukon Denali

1 Answer

engine idles too low Do you have any engine code.if not clean trottle body plate and around. remove iac valve clean the hole and iac pintle what is low idle for you . idle is control by iac valve, tps

Question about 1999 Yukon Denali

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P0135 diagnostic code Can the this code cause my truck not to start? How hard is it to fix? I was quoted 900 buck from a shop to replace a different sensor but found out that it was not the right code

Question about 2002 Yukon Denali

1 Answer

low idle - no codes cleaned throttle body twice - no change. Is there some thing I missing (like IAC port in the TB or ??) There is a throttle body relearn procedure. But requires a scanner.

where is the oxygen sensor located in bank one on 2002 yukon Denali Bank one is the drivers side. If it is bank 1, sensor 1 the it is in front of catalytic converter...if it is bank 1, sensor 2 then ...

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