As the mph increase , it hesitates to move in speed,yet the rpm's rev to a high idle
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 problem for the increase of idle speed is the "TPS" (Throttle positioning sensor or Throttle position sensor) Try to remove the Connected wire from this sensor and if the car turn off when its removed then close your eyes and change the sensor, if it is expensive try to remove from a accidental Vehicle but the same model
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 problem for the increase of idle speed is the "TPS" (Throttle positioning sensor or Throttle position sensor) Try to remove the Connected wire from this sensor and if the car turn off when its removed then close your eyes and change the sensor, if it is expensive try to remove from a accidental Vehicle but the same model
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Make sure that the ****** isn't slipping.
SOURCE: 2004 GMC Yukon XL Reduced Eng power
it sounds like it could be your pcm power control module. only because there are so many different lights coming on at once. or and this may sound stupid but check under the drivers seat. there is a ontrol box there. push the connector and make sure its connected... Believe it or not.. when the seat moves it can tug on the cable. It did on mine and I lost the fuel pump and the fuel guage. I also lost traction control. I had the pump replaced and of course it worked when i drove it out of the dealer only to stop 2 days later... By chance i came accross a web page.. I cant find it now. and a guy had the same problem and it took 4 weeks for the dealer to find out it was under the seat. I check mine frequently and have not had a problem since... lucky for me the fuel pump was under warrenty.
SOURCE: 2002 gmc yukon, rich fuel code, low fuel pressure @40
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.
SOURCE: 2002 GMC Yukon, erratic idle(hi-low) when cold. 125K miles.
i now for a fact that it is the egr valve . carbon balls in side you have to take it of and clean them out
SOURCE: 2001 Yukon XL SLT 4 speed Auto Transmission shift problem!
Sam,
I would start with a transmission fliud and filter service.
I would then have the trasnmission checked out by a transmission shop. The transmission most of the time has the direct drum band is starting to go. The shops can rebuild it no problem, This is a very common failure wiith the trasnmission.
Good Luck
Testimonial: "Thanks alot richtko94'! I'll try that!"
SOURCE: 03 yukon with 125000 miles wont shift into 3rd
yes but you can get it less becauses the kit cost only 72 to220$ for it and its a half day labor onit any ? you can call 863 261 6116 if no answer leave a message
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