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I have a Ford F-150 V6 4

Tiny
SELIP68
  • MEMBER
  • 2004 FORD F-150
  • 94,000 MILES
I have a Ford F150 v6 4.2, while idiling or at a red light, it starts jerking like it wanna die out or it feels like its runnung out of gas but it has plenty of gas in it. I change the spark plugs and wires but it still does it. What could it be?
Monday, October 29th, 2012 AT 4:20 PM

3 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Scan for codes and check fuel pressure first, cleant throttle body with choke cleaner on both sides.
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Monday, October 29th, 2012 AT 5:12 PM
Tiny
SELIP68
  • MEMBER
  • 2 POSTS
Thanks, these are the codes I got
P0171
P0174
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Tuesday, October 30th, 2012 AT 4:33 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
What was fuel pressure? If it's low you will get those codes.
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Tuesday, October 30th, 2012 AT 5:12 PM

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