2002 Impala-trans. shift hard
Quack Quack
05-06-2013, 08:31 PM
Was wondering if anyone knew why the transmission would start shifting hard. The car has over 200 k miles, but runs great. It just recently started shifting hard.
Tech II
05-07-2013, 08:42 AM
If a transmission code is set, the code may force the PCM to run with FULL LINE pressure, causing harsh shifts....
Check for codes....
Check fluid level and condition.....
Last transmission service?
Check for codes....
Check fluid level and condition.....
Last transmission service?
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