While driving it loses power and shuts off

2005 JEEP GRAND CHEROKEE

185,000 MILES • 3.7L • V6 • 2WD • AUTOMATIC

YAJAIRA RODRIGUEZ

MEMBER
3 POSTS

When driving it loses power, it can still be driven. The dash shuts off, after a couple seconds later it completely shuts off. Changed battery, alternator but nothing.

Jul 9, 2022 at 4:17 PM

STRAILER

✓Experienced Mechanic
55,500 POSTS

Is the alternator charging the battery? Once you get the engine running again let's test the alternator output using a voltmeter. This guide can show you how. I noticed that this car has an IPM which goes out all the time and can cause this issue. It is easy to replace because it self initializes

https://www.2carpros.com/articles/how-to-check-a-car-alternator

Here is the alternator wiring so you can see how the system works. Check out the diagrams (below). Please let us know what happens.

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