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Keeps blowing fuel pump fuses

Tiny
AARONMOORE479
  • MEMBER
  • 1998 JEEP CHEROKEE
  • 4.0L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 222,222 MILES
So just bought this vehicle and it keeps blowing fuel pump fuses. Sometimes a lot more often. Then other times then at one time it would blow as soon as I put new in. Please help
Wednesday, April 14th, 2021 AT 8:09 PM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
Let's confirm which fuse is blowing. Is it fuse 21 in the PDC?

If it is then this issue is due to something drawing too much current. So either the relay is stuck causing the fuse to blow or the fuel pump is shorted causing the issue.

What I would do is swap the relay with another and retest the issue. If it blows another fuse then I would replace the pump.

https://www.2carpros.com/articles/how-to-replace-an-electric-fuel-pump

I attached the process below for each of these. Please let us know if you have other questions and what you find with this. Thanks
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Friday, April 16th, 2021 AT 8:24 AM

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