Question about 2001 Chevrolet Silverado 1500
After prolonged driving on freeway for say 1 hour at a constant speed (RPM 2000) the throttle sticks at that speed and then accelerates to 3000 RPM. the truck is a manual 5 speed. (180Km) rRmoval of air horn and a shot of fuel injector cleaner to butterfly in air box seems to only fix problem temporarily. this problem only occurs at a sustained rpm as if it has a "not so sweet spot'. under normal acel and decel say in town problem does not occur.
any help is appreciated. this is bloody annoying
Sounds like your throttle body may be dirty. Take off the tube to your throttle body. Right there you should be able to see your butterfly. Open the butterfly, is it all brown/black? Needs to be cleaned. Your butterfly is more then likely sticking. Get some carb cleaner and a used toothbrush. Open butterfly and spray all around in there. Let is soak up for a few minutes and then start cleaning it away. When you see it all silverish, it's clean. Give it a try.
Posted on Oct 19, 2008
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