OK, Woke up today and my jeep decided not to start at all. Cranks over fine. I have been experiencing some bucking like loss of power here and there and when it seems to be switching gears.Codes read o123 which is throttle position sensor and 0320 crank sensor. But the crank sensor is probably just from me trying to start 100 times not sure. I tried a new TPSensor but was not the problem. So could it be a crank sensor?? Can anyone shed some light on why it is not starting?

 

The TPS won't cause a no start...so where does that lead you? And cranking the engine over a hundred times won't set a code unless there is a problem with the crank sensor or crank sensor circuit.

 

AND, you just reduced the life of your starter. My advise is to replace the crank sensor with a GOOD one, like a Mopar. The quality of this piece is important. It's a bit more expensive, but you get what you pay for.

 

You were right on. Changed the crank sensor and it started right up. It use to buck and loose power prior and it runs perfect now. Thank you for your good advice.

 

You were right on. Changed the crank sensor and it started right up. It use to buck and loose power prior and it runs perfect now. Thank you for your good advice.