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1999 Lincoln Navigator 5.4L Poor Idle Quality
Posted to Ford Driveability on 5/31/2005 13 Replies

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...

13 Replies Received (View Replies)

  Related Documents & Media  1999 Lincoln Navigator

 
Message Closed w/Summary

car Vehicle Data

1999 Lincoln Navigator

VIN 5LMPU28AXX
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality
OccursIdle
Message Closed w/Summary

car Vehicle Data

1999 Lincoln Navigator

VIN 5LMPU28AXX
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality
OccursIdle