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Re: OBD 1 no codes and runs like crap?
Posted to Technical Discussion Forum on 2/12/2023 1 Reply

Jeep had a run of 4.0 motors that had the dist drive gear just a tad out of sync. Took a new cap and cut a little window at the #1 cyl position. Put the crank mark at TDC for #1 and you could see the rotor was way too advanced.

Jeep (Chrysler) had us replace... Login to read more.

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