2002 Ford F-150 Fuel Injection System has to reset for start

Tiny
BAZORI
  • MEMBER
  • 2002 FORD F-150
  • V8
  • 4WD
  • AUTOMATIC
  • 70,000 MILES
I had no problems with vehicle until a week ago. It drove fine, then when I went to start it, the engine cranked, but it got no fuel for start. I had it towed home and let it sit overnight. The next morning it started. I drove it in and out of my drive way, turned it off and it would not start.

The next morning it would start once under the following conditions.

I turned the ignition key to accessories until the seat belt alarm went off. There would be this sound like something engaging/bump. Then the car would start. This does not work a second time if the car is driven. I have to wait until the next day.

If I disengage the battery for more than 20 minutes, and then do the same thing with the start. Leave it on accessary until after the seat belt signal and I hear that bump.

It only starts if I hear that bump or engagement.

I have looked at the fuel switch that turns off when you get in accident. The restart button has not been popped. It was in reading about the reset switch that I learned the trick about leaving the key at accessory for 10 seconds from my users manual.

Once the vehicle starts it runs fine. The engine light does not stay on. All the guages on the console suggest everything is fine, and there is half a tank of gas. We have checked all the fuses and relays, everything seems to be fine. We have checked the wires coming from the passenger kick panel to under the hood and all are good.
Do you
have the same problem?
Yes
No
Tuesday, December 1st, 2009 AT 2:36 PM

4 Replies

Tiny
DOCFIXIT
  • EXPERT
Hi
Where is "bump" sound coming from? Under dash or out in engine compartment?
What is engine size?Bifuel, CNG/LPG?
Let me know
Thanks for donate
Was this
answer
helpful?
Yes
No
Wednesday, December 2nd, 2009 AT 9:24 AM
Tiny
BAZORI
  • MEMBER
It is not a bump as loud sound as much as something engaging and it feels as if it is actually close to the steering column if it is anywhere. I would almost say I feel it.

This is an 8 cyl. It is not bifuel and I don't know what CNG or LPG means. I'm not sure of the engine size. The truck is at my son's house right now.

There is definitely a reset happening. Whether to the computer or the ignition that allows fuel. No warning lights come at after start. When it does not start, the car sounds like it will start with full battery and starter functionality it just doesn't seem to get fuel.

On reading more threads like mine that go unanswered on this forum, I am thinking this is not such an uncommon problem with these F150's but that no one seems to know what is happening.
Was this
answer
helpful?
Yes
No
Wednesday, December 2nd, 2009 AT 1:38 PM
Tiny
DOCFIXIT
  • EXPERT
O.K.Think found the bump a FORD kept secret there is a crash fuel shut off relay behind dash more to center. It is in Auxillary Relay Box 1 see diagram


http://www.2carpros.com/forum/automotive_pictures/198357_Graphic_259.jpg


Suspect relay shuts off pump when crash is senced by impact sensors. Does not show up in wiring diagram so don't know what cotrols relay.
Was this
answer
helpful?
Yes
No
Friday, December 4th, 2009 AT 4:00 PM
Tiny
BAZORI
  • MEMBER
There is also a reset switch. The relays are next to the distribution box on my truck. We checked them when we checked all the others. If it were the relays they wouldn't reset themselves when the battery was disconnected for 20 minutes or so.
Was this
answer
helpful?
Yes
No
Friday, December 4th, 2009 AT 6:25 PM

Please login or register to post a reply.

Recommended Guides