Vehicle Will Not Start After Replacing Transmission


 No Start After Transmission Replaced

No Starting Issues & Transmission Problems


Q: Dropped  transmission on Jeep Cherokee to replace the oil seals that were leaking badly. After put it back in and now it won't start. Do I have to re-calibrate the computer or something? Any help would be awesome.



A: If it cranks over good but will not run I’d be looking at the crankshaft position sensor. The crankshaft position sensor is mounted in the bell housing of the transmission. The sensor is mainly plastic with very, very small wires inside. If it is hit, the engine is a no go. The quickest test is with a scan tool. With the scan tool connected to the computer go the crankshaft signal screen and crank the engine over. The computer will say yes for a crankshaft signal and no if there is not one. If no signal, a replacement sensor is likely needed.

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