Question about Chevrolet C1500

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1994 chevy silverado 350 (1500 stepside). vehicle runs great in park and idle, but once a load is put on the engine- drive or reverse, the motor runs a lile erratic, and cuts off more than occassionally. I'm suspecting the modulator chip beneath the distributor cap and rotor button. Am I on the riht page here?

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It sounds like you have a faulty TPS-throttle position sensor. You can take it off and use some electrical cleaning spray to clean it. Once you have sprayed the cleaner in it you will want to let it dry. You can actually take a soldering iron and melt)(do not drill the hole as shavings will get into the unit and render it useless) a hole in the bottom corner of it which will allow the fluid to drain. After you have done this you can reseal the hole with some silicone.

Posted on Apr 08, 2011


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