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Re: 2001 4.3 engine surge?
How many miles are on the truck?
I would run it buy some place and hook a code reader to it and see if it throws any codes at you. Might just be a sensor. The 4.3 in my 2002 is hooked to an autonatic, and I sometimes feel what is a surge, but I am not sure if it the automatic(Pretty sure it is) or something else.
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