× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
1998 Ford F-150 Lariat 4.6L Poor Idle Quality, Hesitation, Misfire
Posted to Ford Driveability on 12/5/2016 7 Replies

Bought this truck at a local auction, no check engine light on, no codes but runs poorly most of the time then will run good, o2s on scanner are switching rich/lean and voltages show the same. Checked all vacuum lines and they are good when it runs poorly it w...

7 Replies Received (View Replies)

  Related Documents & Media  1998 Ford F-150 Lariat

 
Message Closed w/FIX

car Vehicle Data

1998 Ford F-150 Lariat

VIN 1FTZX18W8W
Engine4.6 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Hesitation, Misfire
OccursCold, Hot, on Accel, Idle, Intermittently
Message Closed w/FIX

car Vehicle Data

1998 Ford F-150 Lariat

VIN 1FTZX18W8W
Engine4.6 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Hesitation, Misfire
OccursCold, Hot, on Accel, Idle, Intermittently