My fuel pump stops while driving sometimes.

1993 NISSAN CEFIRO
100,000 MILES
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JCUNIN
  • MEMBER
  • 4 POSTS
I installed a new fuel pump earlier this year and it recently started cutting off while driving. I have a fuel pressure gauge installed on my dash and the fuel pressure seems fine and the car works good as long as the pump is running. The car shut down on more than one occassion and after checking everything I decided to change the relay for the pump with an extra one I had lying around and was able to get the car started. I checked both relays and they seem to be fine because whenever the car shuts off I just swap the relays and it starts again. What do you think would cause the relays to malfunction?
Sep 3, 2013 at 2:49 PM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,193 POSTS
  • ASE Certified Mechanic
A relay is an electronic device that can malfunction at any time. However, it is odd that both would do the same thing. When the car dies, does it start right back up for you?
Sep 3, 2013 at 6:42 PM
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