Car stalling while driving

MPHO MONAKALI

MEMBER
1999 JEEP GRAND CHEROKEE
V8
4WD
AUTOMATIC
242,000 MILES

My vehicle listed above switches itself off while I'm driving. It wont start when I'm trying to start. It will only start after about 20 minutes some times will start after an hour.

Monday, September 30th, 2019 AT 9:52 PM

3 Replies

KASEKENNY

MECHANIC
18,907 POSTS

Hi,

This sounds like a couple things. First and most likely is the crank sensor. Here is a guide that gives more detail:

https://www.2carpros.com/articles/symptoms-of-a-bad-crankshaft-sensor

The next possible cause is the PCM. However, here is another guide that we need to review before we just replace the PCM:

https://www.2carpros.com/articles/engine-stalls

I am going to assume you have no codes but we need to check. No codes and this happening points again to the crank sensor.

Please let me know if you have questions after you review this material and if you have already performed any repairs to attempt to repair this and we can go from there.

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Tuesday, October 1st, 2019 AT 4:17 PM

MPHO MONAKALI

MEMBER
4 POSTS

Morning, thank you for the information. I did send it to a mechanic, it gave me 2 error codes; 1495 and 1391. Please advise on these error codes.

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Wednesday, October 2nd, 2019 AT 12:29 AM

KASEKENNY

MECHANIC
18,907 POSTS

Attached are the details about these codes. Your stalling issue is most likely related to the P1391. The other code is just an emission code and while it should be addressed, it is not going to cause a stall issue.

Run through the test for the P1391 and let me know what you find. Let me know if you have more questions. Thanks

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