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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for November 30, 2023
International Automotive Technicians' Network (iATN) - Members Only
(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for All Makes and Models
Help Request Answers
2007 Ford Focus SE 2.0L Excessive Emissions, Poor Idle Quality, Surge, MIL Lamp on VIN: 1FAHP31N67
This one has me puzzled. At idle it runs lean, LTFT goes around 25%, and the engine starts to surge. Rev the engine, say 2500-3000rpm, and it goes way rich, LTFT goes around -25%. At idle if I add propane, the fuel trims go normal and the idle smooths out....
2013 Volkswagen Passat SEL 2.5L Radio VIN: 1VWCP7A33D
After battery was replaced by another shop the radio won't go on. Any way to get this back up? Fuse #13 and #16 under the hood checked good. Thanks

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2017 Cadillac XT5 3.6L Steering VIN: 1GYKNBRS6H
left the long pipe connected to the housing in the engine,installed & removed only the aluminum housing. That made it a little more convenient. Trouble codes: P0128 (Coolant temp).
2006 Ford F-550 Super Duty XLT 6.8L Misfire, MIL Lamp on VIN: 1FDAF57Y06
Thank you to everyone who replied! I ended up putting a new serpentine belt on with no change. After talking to the customer, I found out that he replaced the motor himself and that he replaced several sensors including the CKP sensor with sensors from ford. I... Trouble codes: P0320 (Ignition/Distributor Engine Speed Circuit Fault), P0351 (Ignition Coil A Primary/Secondary Circuit Fault), P0357 (Ignition Coil G Primary/Secondary Circuit Fault), P061B, P2106 (TAC System- Forced Limited Power).
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