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Jim Grant Tech Tips Jim Grant Tech Tips
A collection of helpful articles based on reader submissions
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  Jim Grant's Tech TipsJim Grant's Tech Tips
Below is a collection of Jim Grant's Tech Tips sorted by Vehicle Make. These Tech Tips were answers to questions submitted to Jim by users over the course of many years.
If you have any questions, please feel free to email us.



Lincoln - Mercury
  Jim Grant's Tech Tips

98 Chevy Astro Van, Sticking Accelerator Pedal
Q: I have an odd one. My Ď98 Chevy Astro Van has a sticking accelerator pedal. It sticks in the idle position and feels like one of the old Chevy carburetors when the bushings got worn and the butterfly got stuck n the venturi walls. The cable appears free all the way to the engine. Once you "pop" it once it is good for a while, but if it sits any length of time, it sticks again. It has been getting worse. It used to be that it would only stick over night. Now itís after a few minutes. Any guesses? I tried to see about getting to the motor, but what a zoo! I didn't take off the engine cover though. Itís the wife's van and she isn't too crazy about me tearing into it unless I pretty well know what is wrong. I used to work on cars at a mom & pop garage about 25 years ago but have never got into fuel injection maintenance. Is this anywhere near normal?....Mel D.

A: Your complaint is not uncommon. Weíve had sticking throttle complaints on vans and small pick-ups alike. Carbon seems to be build up in the throttle bores to the level that causes the throttle plates to stick. This condition should not be ignored. A sticking throttle plate can cause a vehicle to jump ahead unexpectedly. To date all that is needed is a cleaning of the throttle plates and throttle body to correct the condition. You think the engine is zoo to get to?! Yea, thatís a nice way to put that mess.

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