What could bea cause of slow and our lurchy shifting when accelerating? on 2001 Chevrolet Blazer

This problem has been ongoing, but has gotten worse since the distributor was replaced, my truck now lurches when it shifts from any any gear, especially when going from 1st to 2nd, and during heavy acceleration

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1 answer 1 comment
ck fluid level and condition
Thanks, level was in thE COLD region ona HOT pull