sound like your 02 sensor is out. that the sensor that tell your car how much oxygen mixture it needs.bring it to a TRUSTED mechanic to diagnose. parts cost $118. u can do it yourself.
yeah i found the proplem thanx man but i will try to clean the sensor by my self maybe that will work
2002 GMC Yukon Denali AWD
-
Maintenance & Repair
The Service engine soon light appears on my 2002 GMC Yukon. Took it to Auto Zone for a read out and it read a P0300 code: Replace Fuel Pressure Regulator. After it was replaced the light went out f...
2002 GMC Yukon SLT
-
Maintenance & Repair
I had my ignition switch turned to the "ON" position this afternoon, and totally forgot about it being on. After being on for a minimum of 2 hours, my battery had all but died - Denali wouldn't cra...
2002 GMC Yukon Denali AWD
-
Maintenance & Repair
why my 96 yukon ABS light is always on, even i brought it to the mech. but it wont off?
1996 GMC Yukon SLT 4WD
-
Maintenance & Repair
with the air condition on i giver it a good bit of gas the check engine light comes on but not with the air condition off, Unless i'm going up a hill and gun it and then the check engine light comes...
2007 GMC Yukon Denali AWD
-
Maintenance & Repair
Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.