Transmission

1996 CHEVROLET SILVERADO
175,000 MILES • 5.7L • V6 • 4WD • AUTOMATIC
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JACKIE BURNS CIEMENTS
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I bought this truck, serviced the transmission, the previous owner said he had replaced the shift solenoids. We serviced it and found a pinched wire , figured that was some problem, replaced the wiring harness, now it chatters occasionally....im lost..my husband is a certified mechanic but hes stumped now too
Mar 13, 2017 at 1:42 PM
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CARADIODOC
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Does this occur only around 30 - 40 mph? Does the chattering stop if you hold the accelerator pedal steady, then lightly apply the brake pedal?
Mar 13, 2017 at 5:27 PM
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JACKIE BURNS CIEMENTS
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When it shifts to over drive it shudders, let off gas then hit it and it goes smooth or hit brakes shudder goes away. this truck has a new crate motor in it. so I do not want to say forget the truck, lol.
Mar 13, 2017 at 6:28 PM
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CARADIODOC
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If this only occurs at the speeds I listed, the best suspect is the transmission has the wrong fluid. Do a filter and fluid change and ask at the dealer's parts department which is the correct fluid to use.
Mar 13, 2017 at 7:02 PM
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JACKIE BURNS CIEMENTS
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it does not occur at the speeds you listed, it occurs at sixty mph and goes away if you let off the accelerator or tap the brakes.
Mar 14, 2017 at 6:40 AM
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CARADIODOC
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You're still describing the same symptoms of using the wrong fluid. I'd pursue that before you go looking for more expensive solutions.
Mar 14, 2017 at 6:25 PM