Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
are there any codes at all set in the computer ?
how often will it act up and do this ?
99 % of these doing this are usually dirty or bad pressure control solenoids in the transmissions valve body
have you tired a transmission flush yet with a flush machine ?
fine small debris can built up in the pressure control screen and cause this
have it flushed good with a flush machine if it still acts up the transmissions side cover would need to come off to remove and clean the valve body and to replace the pressure control solenoid in the valve body
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how are you making out ?
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ok let me know
was the valve body removed and cleaned ?
lets se if another expert has any ideas
hang on another expert will reply back to you
did you ohm the other solenoids?
no they need removal
also it could be broken servo piston something is causing a pressure drop
in the valve body
To test a solenoid all you need is a hand held ohm meter. Connect the two wires coming off the solenoid to the two leads on the ohm meter. A properly working solenoid should return a reading of around 20 – 30 ohms of resistance. If no reading is returned, you can assume the wire is broken.
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