Fuel pump relay or pump failure?

Tiny
GASMISER
  • MEMBER
  • 2000 DODGE CARAVAN
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 125,000 MILES
My 2000Caravan 3.8 engine L number :If I remove the fuel pump relay from the PDC and take a wire jumper from pin 87 to pin 30 on relay pin socket the vehicle starts and runs but acts like it dies when put in gear. If I replace new relay in socket the engine cranks but won't start.I put test light on battery lead and inserted into pin socket 86 and turn ignition key on the trigger circuit lights up test light. Why doesn't relay work or is my fuel pump causing the no start conditon.I'm doing this repair free as the lady can't pay for labor so I offered to fix as ministry. Can you help me?
Saturday, July 17th, 2010 AT 6:37 PM

5 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Sounds like there's a problem with the fuel pump relay control circuit with the computer.Could also be the Auto Shut Down Relay.

See the guides below on testing relay

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Wiring diagrams for the ASD relay and fuel pump relay are attache below
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Saturday, July 17th, 2010 AT 7:09 PM
Tiny
GRAMCUBY
  • MEMBER
  • 2 POSTS
  • 2000 DODGE CARAVAN
  • V8
  • AWD
  • AUTOMATIC
  • 150,000 MILES
Is the fuel pump relay the only means of activating or deactivating the fuel pump?
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Thursday, February 28th, 2019 AT 6:10 PM (Merged)
Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
You can’t say yes for sure many thing has to be present for the pump and relay to work
what kind of problem are you having
let me know
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Thursday, February 28th, 2019 AT 6:10 PM (Merged)
Tiny
GRAMCUBY
  • MEMBER
  • 2 POSTS
Fuel pump relay and fuel pump inoperative. No codes
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Thursday, February 28th, 2019 AT 6:10 PM (Merged)
Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
Check crank sensor and ASD relay
engine size?
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Thursday, February 28th, 2019 AT 6:10 PM (Merged)

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