
1999 Lincoln Navigator 5.4L Poor Idle Quality
after replacing plugs and gaskets still runs the same. appears to be vacuum leak as bank 1 ltft is 8-9% and bank 2 ltft is 3 %. check for vac leaks found none, disconnect egr vavle, did not make a difference. cleaned throttle body, inspect pcv valve/hoses/grom...
Summary posted 6/24/2005
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Message Closed w/Summary
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VIN | 5LMPU28AXX |
Engine | 5.4 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI |
Emissions | OBD-II Compliant |
Symptoms | Poor Idle Quality |
Occurs | Idle |
Message Closed w/Summary
Vehicle Data
1999 Lincoln Navigator
VIN | 5LMPU28AXX |
Engine | 5.4 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI |
Emissions | OBD-II Compliant |
Symptoms | Poor Idle Quality |
Occurs | Idle |