Ignition problem

Tiny
ANTHONY WARE
  • MEMBER
  • 2002 FORD F-150
  • 5.4L
  • V8
  • 4WD
  • AUTOMATIC
  • 3,010,000 MILES
The truck cranks and runs fine then sometimes when you turn it off it cranks but will not start. The fuel pump will not come on, but you can turn key on and off three or four times and fuel pump comes on and it will start. When you turn key on all gauges work fine.
Sunday, December 31st, 2017 AT 11:39 AM

5 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,796 POSTS
Good afternoon.

It sounds like the fuel pump motor has a bad spot in it. It may have to be replaced due to this. The other possibility is the connector at the pump itself. In the winter it is exposed to the outside environment.

Roy
Was this
answer
helpful?
Yes
No
Monday, May 31st, 2021 AT 12:40 PM
Tiny
ANTHONY WARE
  • MEMBER
  • 3 POSTS
I changed the fuel pump relay it cranked every time until I went to town and turned it off, then it did it again but after bout three tries pump came on and cranked, but was not thinking fuel pump because if it cranks I can drive four hours without a problem.
Was this
answer
helpful?
Yes
No
Monday, May 31st, 2021 AT 12:40 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,796 POSTS
Once the fuel pump runs it will stay running until shut off and commanded on again. Sounds more like the pump is failing.

Roy
Was this
answer
helpful?
Yes
No
+1
Monday, May 31st, 2021 AT 12:40 PM
Tiny
ANTHONY WARE
  • MEMBER
  • 3 POSTS
You was right on it was the fuel pump.
Was this
answer
helpful?
Yes
No
Monday, May 31st, 2021 AT 12:40 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,796 POSTS
Good, glad to hear you got it fixed.

Roy
Was this
answer
helpful?
Yes
No
Monday, May 31st, 2021 AT 12:40 PM

Please login or register to post a reply.

Related Fuel System Fuel Pump Not Working Content

VIEW MORE