please help
Thread Starter
|
New User
Joined: Dec 2005
Posts: 2
Likes: 0
please help
I have a 1999 F250 SD (V10). Drove to work with no problems...8 hrs later the truck would only crank and crank. This is what I have done so far.ffice:office" /><O:p></O:p>
- checked fuel...3/4 tank<O:p></O:p>
- checked fuel shutoff under passenger side kick panel...was not popped...reset it anyways.<O:p></O:p>
- checked fuses 5, 7 and 20...all checked good with test light<O:p></O:p>
- got a new fuel relay and swapped it out one at a time with relay 4, 5 and 6...did not know which relay was the fuel relay....nothing changed<O:p></O:p>
- disconnected the fuel line after the filter and before the tank. Cranked the truck and no fuel came out of the line and I do not hear the fuel pump turn on.<O:p></O:p>
- disconnected the wire harness plug going to the fuel pump. Checked the plug with a test light....light did not come on. This plug had four wires (2 red, 1 yellow and 1 black).<O:p></O:p>
- disconnected the plug at the shut off switch under passenger seat kick panel and tested with test light....light did not come on.<O:p></O:p>
<O:p></O:p>
Would appreciate any help/advice I could get. I do not know which relay is the for the fuel pump (4, 5, or6). Not sure if I have a bad fuel pump or a lack of power to the fuel pump. Thank you for the help. Todd<O:p></O:p>
- checked fuel...3/4 tank<O:p></O:p>
- checked fuel shutoff under passenger side kick panel...was not popped...reset it anyways.<O:p></O:p>
- checked fuses 5, 7 and 20...all checked good with test light<O:p></O:p>
- got a new fuel relay and swapped it out one at a time with relay 4, 5 and 6...did not know which relay was the fuel relay....nothing changed<O:p></O:p>
- disconnected the fuel line after the filter and before the tank. Cranked the truck and no fuel came out of the line and I do not hear the fuel pump turn on.<O:p></O:p>
- disconnected the wire harness plug going to the fuel pump. Checked the plug with a test light....light did not come on. This plug had four wires (2 red, 1 yellow and 1 black).<O:p></O:p>
- disconnected the plug at the shut off switch under passenger seat kick panel and tested with test light....light did not come on.<O:p></O:p>
<O:p></O:p>
Would appreciate any help/advice I could get. I do not know which relay is the for the fuel pump (4, 5, or6). Not sure if I have a bad fuel pump or a lack of power to the fuel pump. Thank you for the help. Todd<O:p></O:p>
Thread Starter
|
New User
Joined: Dec 2005
Posts: 2
Likes: 0
Thanks for all the help. I tried to dtart it with the pedal down 1/4 to 1/2 way and still no luck. I checked fuse 19 and it is good. Could someone tell me how to apply power to the pump itself and see if it spins? Thanks again for all the help! Todd
Posting Guru
Joined: Nov 2003
Posts: 1,949
Likes: 0
From: Near DC
Trending Topics
Lead Driver
Joined: May 2003
Posts: 9,303
Likes: 48
From: Lyndonville, Vermont
There are 2 relays for the fuel system. One is the pump relay and one is a hi speed relay in the PCM. key on you should here the pump for a couple of seconds. Have you banged on the tank with a 2x4 or bat yet? Let us know where you are at with it..
Dick
Dick
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!
Joe Kucinski
Every 2026 Ford Truck Engine RANKED from WORST to FIRST!
Michael S. Palmer