donielle smith

When I start it up it runs good for about 5 or 10 minutes of driving it and then it cuts off going down the road and I have to let it sit for a few minutes to crank it and then it cuts off again I thought it was the fuel pump so I changed it and it’s still doing it I need help thanks

tjwalker

You are likely experiencing "thermal" (heat related) failure of a component. The #1 suspect here for a 2001 XJ is the crankshaft position sensor. It is not uncommon for this sensor to fail in this manner; I've personally seen it many times.

The crank sensor can be tested but testing will likely not be of any value if tested when the engine starts as values will be within spec. I would scan the computer for any codes or pending codes, even if the check engine light isn't on or if you haven't seen it come on.

I'm not a big fan of replacing any parts without hard evidence/diagnosis leading to it, but with this symptom and in the absence of any codes, I'd replace the crankshaft position sensor. If you decide to do this, try to source a genuine MOPAR sensor as aftermarket crank sensors are very hit and miss, with quite a bit of miss.

Good luck and keep us updated!