
1999 Lincoln Navigator 5.4L Poor Idle Quality
have this navigator that will not idle - have codes po171 and po174 - checked for vacuum leaks - fuel pressure all seems fine - i cannot find anything out of the ordinary this is a 5.4l dohc intech motor - is this different than regular 5.4l dohc . any help ap...
FIX posted 9/21/2004
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Message Closed w/FIX
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VIN | 5LMPU28A7X |
Engine | 5.4 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI |
Emissions | OBD-II Compliant |
Symptoms | Poor Idle Quality |
Occurs | Always |
Message Closed w/FIX
Vehicle Data
1999 Lincoln Navigator
VIN | 5LMPU28A7X |
Engine | 5.4 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI |
Emissions | OBD-II Compliant |
Symptoms | Poor Idle Quality |
Occurs | Always |