# 2002 Ford F150 fuel issues

**URL:** <https://community.cartalk.com/t/2002-ford-f150-fuel-issues/13651>\
**Category:** Maintenance/Repairs\
**Created:** [May 5, 2008, 3:14pm UTC](https://community.cartalk.com/t/2002-ford-f150-fuel-issues/13651 "2008-05-05T15:14:40Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![leloupwest](https://avatars.discourse-cdn.com/v4/letter/l/8797f3/32.png) [@leloupwest](https://community.cartalk.com/u/leloupwest)\
**Post date:** [May 5, 2008, 3:14pm UTC](https://community.cartalk.com/t/2002-ford-f150-fuel-issues/13651/1 "2008-05-05T15:14:40Z")

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Our 2002 Ford F150 continues to have the “check engine soon” light come on. Diagnotic shows codes PO171 & PO174. We have had the fuel filter replaced, fuel pump replaced, gas cap replaced, fuel injectors cleaned and vacuum lines replaced. After the new gas cap the light stayed off for over a month but is back on.  
  
 HELP!!! Any suggestions of what else our mechanic can try. We are stumped.