I have a 2001 monte carlo ss with a code po742 on can some one tell me how to fix it
Look at the transmission fluid color, if it is dark and smells burnt then most likely some crud has wound up int the valve body and shift solenoids, if that is the case then the tranny won't last long. If the fluid is a good red color then you might be able to replace the solenoid assembly's to get the solenoids switching again.
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