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TOPIC: Re:Stumbling issue on freeway. Forum Tools Post New Topic Show latest posts Rules

#519858 Jslater (User) Fresh Boarder Posts: 16 Stumbling issue on freeway. 10 Months, 1 Week ago   Have a 2008 RS 1700 Silverado S. When running down freeway at 75 mph at a constant speed. It will start to stumble, and as soon as I change throttle it will perk right up and run great for awhile. Would this be TPS sensor issue or O2 sensor issue? Problem only started after running seafoam in gas. Have no codes showing up, no check engine light.   Logged     The administrator has disabled public write access. #519868 Stocked (User) Wayne Platinum Boarder Posts: 1418 Re:Stumbling issue on freeway. 10 Months, 1 Week ago   Same tank of gas or have you gone through multiple and it still does it?   Logged       The administrator has disabled public write access. #519918 blue_star (User) Better to burn out than fade away! Platinum Boarder Posts: 4818 Re:Stumbling issue on freeway. 10 Months, 1 Week ago   Check and make sure your oxygen sensors are connected. Mine was acting like that and I found one electrical connector disconnected.   Logged     http://s1271.beta.photobucket.com/user/bluestar825/library/   The administrator has disabled public write access. #519957 Jslater (User) Fresh Boarder Posts: 16 Re:Stumbling issue on freeway. 10 Months, 1 Week ago   Three tanks now. Still doing it.   Logged     The administrator has disabled public write access. #519958 Jslater (User) Fresh Boarder Posts: 16 Re:Stumbling issue on freeway. 10 Months, 1 Week ago   Check and both are connected fully and no bent pins.   Logged     The administrator has disabled public write access. #519960 blue_star (User) Better to burn out than fade away! Platinum Boarder Posts: 4818 Re:Stumbling issue on freeway. 10 Months, 1 Week ago   Could be a bad O2 sensor. Not sure about the TPS on the R*. Hopefully someone knows more about it than I do.   Logged     http://s1271.beta.photobucket.com/user/bluestar825/library/   The administrator has disabled public write access. #519983 jd750ace (User) I'm not IN danger, I AM the danger Platinum Boarder Posts: 7979 Re:Stumbling issue on freeway. 10 Months, 1 Week ago   Sounds kinda like the throttle position sensor could have a dead spot, but that is not definitive, just a W.A.G.   Logged       The administrator has disabled public write access. #519996 Tug (User) ride free. live free. or die tryin Platinum Boarder Posts: 4831 Re:Stumbling issue on freeway. 10 Months, 1 Week ago   Do the 08-up even have a TPS? They are FI after all   Logged       The administrator has disabled public write access. #520037 jd750ace (User) I'm not IN danger, I AM the danger Platinum Boarder Posts: 7979 Re:Stumbling issue on freeway. 10 Months, 1 Week ago   Should have. Computer needs to know what you're asking for. Rotary displacement of the throttle plate is the best place to read the request.   Logged       The administrator has disabled public write access.

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