2003 F150 V6

Asked by May 08, 2013 at 11:27 AM about the 2003 Ford F-150 XL LB

Question type: Maintenance & Repair

wont start after replacing fuel pump and filter just cranks over I can spray starting fluid in breather hose and it will start only for a second ther is alot of pressure at the release valve when i turn the key on

11 Answers

28,495

do you have any codes stored in the computer?

3 of 3 people found this helpful.

You getting spark...sounds like you aren't~

2 of 2 people found this helpful.
55

check your coil pack that give you the spark

1 of 1 people found this helpful.

this one has brilliant onboard diagnostics built in 'tis a matter of extracting them...you could get it for FREE from NAPA or advance auto, or Olreillys or you could buy your own diagnostic tool....thery're cheap~

1 of 1 people found this helpful.
65

If it starts on starting fluid, you have spark. Since there is fuel pressure at the release valve, the problem is beyond that. Sounds like injectors to me.

28,495

Maybe its a security issue. Doesn't that disable the injectors? Or does it kill spark?

6 of 6 people found this helpful.

kennyf, you with us? You're the one who got the ball rolling...is it ever going to roll into a pocket or slam against a bumper, now?

2 of 2 people found this helpful.

it dose have spark because it will start after starting fluid don;t have a computer but I will try that next

what you mean by a security issue

28,495

If the truck doesnt recognize the key it will not start it has a passive antitheft system from the factory

3 of 3 people found this helpful.
28,495

I just couldnt remember if the system will cut fuel or fire to the engine to make it not start when the secutiry system is active. But i think it does disable the fuel injectors in that case

1 of 1 people found this helpful.

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