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GMC Yukon Start Stall Idle Problems

48 messages,  Last post on Sep 17, 2009 at 12:59 PM

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What is this discussion about? GMC Yukon, GMC Yukon Denali, GMC Yukon XL, SUV

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#47 of 48 Re: Problems starting by 04denalixl [fongerelli] by 04denalixl Sep 17, 2009 (4:37 am)
Replying to: fongerelli (Sep 15, 2009 9:07 am) I guess I was assuming that it was flooded but did not smell gas. She still cranks on the 3rd try and I hear my fuel pump kick in everythime I turn the key. I had her on the highway yesterday at high speeds and everytime I punched it, she took off with the power that she always had. She never stalls or shuts off and I see that she is gettting fuel, but on the way back, my service light came on and I took it by the parts store to read the codes, and they said that the connector wasn't getting power so they couldn't read the codes. But this morning I went to the store and it was on when I got there. Switched the truck off and went inside and came out 5 minutes later and did the 3 try start thingy and the light was off. I'm thinking that it may be a computer problem or something as well. I did just recently get a new battery installed. Wondering if you have to reset the computer when installing a new battery? But I will also replace that crankshaft position sensor and see what happens. Thanks for the responses as well everyone.
#48 of 48 yukon problems by retfire Sep 17, 2009 (12:59 pm)
just got back from dealer,again.brought all my info on the recall and told him that i read about others having same problem.he told me,again,that the trucks computer needs to pick up the problem so they can fix it,and that he can't remember a recall.this is what we are dealing with.he stated that they reprogrammed something to do with the sluggishness the car was having.again,nothing found that would address the problem of my truck stalling.and i can't turn the truck in like i posted earlier.it is a new program and you may return the vehicle if not satisfied if you purchased it between sept.15 and oct.15.i purchased my truck in late july.am calling gm today,i will post what they said.

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