Question about 2008 GMC Yukon Denali
Right check the O2 sensors for working by checking the wires with a multu meter ,although it can be checked with a code reader if set to read the PIDS ,this means that with engine running you read the readings on the code reader should be about 4.7v going up and down with RPM ,failing which on the O2 sensor their are twoi wires the same colour normally white or grey ,now check across these wires for a 12v supply with ignition on ,then get back to me as i dont iof this vehicle has 4 or 3 wires
Posted on Oct 18, 2013
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Posted on Jan 02, 2017
you may have two oxugen sensors on your yukon. if so the oxygen sensor that controls that bank may be bad. from what you mentioned in your complaint, it sounds like it is the oxygen sensor.
Posted on Dec 24, 2008
SOURCE: 1998 gmc Sierra Engine light
Hi, there are a number of trouble codes associated with the O2 sensors. Some indicate a sensor failure and others indicate a different problem. Can you tell me the trouble code you are getting?
Posted on Jan 14, 2011
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