Test the fuel pump relay or swapped it for a known good one its located in underhood fuse block.

Answered by rasmataz
68 questions asked

swapping out the relay did not resolve the issue. when I turn the key I get 12V to the pump for a brief period, but the pump does not activate. what can I try next.

Response from martini77
1 question asked

Power the pump direct from the battery and tell me what happened.

Answered by rasmataz
68 questions asked

I connected another battery to the pump and it starts working, could it be the connector at the pump?

Response from martini77
1 question asked

Could be the connector test it or an open wire on the gray going back to the fuel pump relay.

Answered by rasmataz
68 questions asked

Well, I charged the battery replaced the connector at the pump. Using the new splices I checked the voltage at the wires. The combination that powers the fuel pump does not get any voltage to it. All the other combinations of wires get 12v for a second or two when the key is turned on, then all go to zero v except the purple/orange combination which gets 1.27v all the time. what can I try now?

Response from martini77
1 question asked

All the other combinations of wires get 12v for a second or two when the key is turned on,this happens bcuz the relay de-energizes

Test the ground wire to the pump-

Answered by rasmataz
68 questions asked

Sorry to sound stupid, but I don't have a clue when it comes to auto electronics. How do I check the ground wire to the pump?

thanks

Response from martini77
1 question asked

I connected another battery to the pump and it starts working, could it be the connector at the pump?

If it comes On then the ground is good.

Answered by rasmataz
68 questions asked

With the key on I connected another battery to the connections that power the pump, and it turned on. So that means it is grounded, right? What can I try next? Thanks for the help.

Response from martini77
1 question asked