I just replaced timing chains and cam pherser, it will start but now won't idle

20

Asked by Nov 16, 2015 at 08:07 PM about the 2008 Ford F-150 XL SuperCab

Question type: Maintenance & Repair

12 Answers

20

5.4 liter

1 of 1 people found this helpful.
68,255

Have you tried adjusting the throttle position sensor?

1 of 1 people found this helpful.

Ok, why would you change a timing chain on a 2008? Do you have that many miles on it.. like 200,000+ ? And what is a pherser?

4 of 4 people found this helpful.
68,255

Lol FN, i was wondering the same thing.

1 of 1 people found this helpful.
20

5.4 liter, the chain was worn out, the phaser goes on the front of the cam

20

I checked the throttle

68,255

Question Robert,when it does crank can you rev it up and run ok or not?

20

Yes it run right but soon as you let off the throttle, it dies

1 of 1 people found this helpful.
68,255

Check the IAC,Idle Air Control,may be vacume to it not on or bad or even stopped up.

20

Never heard of iac, where is it located?

68,255

It is located at the throttle body housing on bottom side.

1 of 1 people found this helpful.
68,255

pic

1 of 1 people found this helpful.

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