2007 GMC Yukon Denali Vehicle speed control Problems

“I had just left the free way went onto a 2 lain road we were driving about 50 mpr then we lost engine power,all the dash lights came on ,we pulled over the car killed,didn't know what to do ,so we waited a bout 8 minutes then turned the key, the car started and we went on our way,a few minutes later it did the same thing, it did it 2 more times, took it to the shop was told it was a gas tank sensor ,$500.00 stoat at the shop,and the car still has the problem,what happens if the engine reduces power while do 65 mpr down the free way, ? …”

“On july 26, 2013 I was in my 2007 Gmc Yukon Denali when I had an issue. I was in my car, the engine was running but it was in park. I was idling for about 5 minutes when I received a engine power reduced , followed by the check engine light. I immediately shut the car off and gave it about 20 minutes before I turned the car back on again. The check engine light was still on with the engine power reduced , followed by service stabilitrac , stabilitrac off , service traction control , traction control off , and power assist off . …”

“I was traveling on the freeway at about 70 MPH coming from a supervision training class along with a co-worker and the following sensor lights started appearing on my dashboard: traction control off, stabilitrak off. This has continued to happen on a regular basis. I have taken it to the GM service at least twice and private repair facilities numerous times and the situation continues. It is now 01-28-2014 and the situation continues and is getting worse. Alone with the above issues now the reduce engine power light comes on and the engine shuts down. …”

“I took my daughter to volleyball practice and when I stopped at a red light the car was accelerating even though I had my foot on the brake pedal and it moved on a jumping mode to the front. I got so scared. The car moved forward we could have been involved on an accident on an intersection or hit the car in front of us. As that happened I noticed in dashboard the rmp counter was moving up as if it was were accelerating. It was pretty scary my kids and I don't feel safe to ride on the only car we own. I had a mechanic tell me I should take it to the dealer because it's a safety hazard. …”

“The contact owns a 2007 Gmc Yukon Denali. The contact stated that while driving 15 MPH, the ESC and check engine warning light illuminated as the engine lost power. The vehicle was restarted and taken to the dealer for inspection where they advised that the throttle body and the vacuum hose needed to be replaced. The vehicle was repaired but the failure recurred at least twenty-five times. The manufacturer was notified. The failure mileage was 134,000. The VIN was unavailable.”