- Joined
- August 14, 2004
- Messages
- 3,713
- Reaction score
- 14
- City, State
- Denver,NC
- Year, Model & Trim Level
- 1997 F150 XLT 4x4
There are regular posts looking for answers to the P0171/P0174 DTC's. The 2001-2003 Sports and 2001-2005 Sport Tracs are legendary for throwing the codes together. Although there ARE instances where intake gaskets, among other issues, are the cause the overwhelming majority of these codes are caused by the PCV elbow cracking on the bottom and causing a substantial vacuum leak. Over & over owners replace gaskets/solenoids/etc only to have this code remain and finally finding the elbow cracked. It's a cheap part, easy to examine/replace so I'm simply posting this to advise those suffering with this code combo to check the elbow thoroughly before looking further. It's so simple that it's ridiculous NOT to check it first.
To be clear, this arrangement is NOT on Job 1 builds of the 2001 year models.
As a reference, this is the 2001 Job 1 arrangement.
To be clear, this arrangement is NOT on Job 1 builds of the 2001 year models.
As a reference, this is the 2001 Job 1 arrangement.