My 1997 k1500 5.0 keeps blowing the fuse for the fuel pump,the pump was put in about 6 months . i track a grey wire from the fuel pump RELAY through the back but don't know to what it gose to,i cut the wire and positive tested and the test light turns on meaning it grounded somewhere but now the the fuel pump works and the engine turns on and stays on . i need to know where dose the wire gose to

Harvey N Tawatao

• 3854 Answers
• Posted on Apr 06, 2009

SOURCE: fuel pump problems 2003 s10 chev 4.3 v6

Your ECU is what acctivates your fuel pump realy. Put the key on the run possition and pull the ecu fuse for a few seconds and reinstall it ans it should accivate your realy for 5 seconds, Good luck.

SOURCE: 2000 S10 4.3L

At the fuel pump relay you should have 1 full time hot wire. 1 hot wire when you turn on the switch. 1 ground, and the other wire goes to the pump. Test the ground to be sure it is good. If so then jump a hot to the one that goes to the pump and see if it runs.If it does then you have a bad relay or ECM. You can swap the relay with another of the same # from tour fuse box to test it.There is also a ground on top of the frame near the filler neck, check it too. Good Luck

SOURCE: 2000 chevy venture doesnt start

Not the IAC, or MAF, or 02

Does the Van Crank over?
Have you checked the IGN Relays? 1,2,and 3?
How did the Battery test out?
Anything below 11.9v battery is dead.
So I suggest that you do not throw any more parts and check the battery again.

SOURCE: no fuel to the throttle body i have replaced the

It could be the power wire to the pump. Try running a power wire from the battery to the pump. It should turnm on for a few seconds and shut off until you start the truck. Hope this helps.

SOURCE: 1997 Suburban, cranks, won't start. Removed fuel

The oil pressure gauge on the engine runs the fuel pump until the engine receives full oil PSI and shuts off. Upon that time the relay takes over for the fuel pump