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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for August 9, 2009
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Open Help Requests for Ford
Help Request Answers
2003 Ford F-250 Super Duty XL 5.4L drive cycle incomple VIN: 1FDNF21L53
Greetings, A customer brought in this truck for emissions and the O2 monitor and O2 heater circuit monitor will not set. while driving, every so often it would make a buzzing/grinding noise and all monitors would reset in the car would reset (car did not stal...
2003 Lincoln Navigator 5.4L Poor Idle Quality, Misfire, MIL Lamp on VIN: 5LMFU28R73
HI Y'ALL!! THis truck is a real headache!! Original complaint was misfire on accel! Found misfire events on mode 6 cyl #3 had about 1800 misfires in memory! OK replaced all spark plugs and cyl #3 coil! There were no codes at that time! Later found vacuum leak ... Trouble codes: P0308, P0316, P0401, P0402

Fixes & Summaries for Ford
Fix/Summary Answers
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