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Prev Professional Automotive Repair Technical Discussions for June 23, 2020
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Open Help Requests for Ford
Help Request Answers
2008 Ford F-550 Super Duty XL 6.8L Hesitation, Cuts out, Stall, MIL Lamp on VIN: 1FDAF57Y48
Truck starts and runs fine even idles fine. It is not until technician takes it for a drive around town for a fe minutes that it flashes the check engine light and immediately starts running bad under any load. Truck has great fuel rail pressure up until t... Trouble codes: P0191
2011 Ford F-350 Super Duty King Ranch 6.7L Dtc B1b71:15-08 VIN: 1FT8W3BT3B
The compressor operates sporadically or not at all. DTC B1B71:15-08 Evap Temp Sensor is current. Live data shows a temp sensor reading that fluctuates from -40* to +50*. Mostly stays below 32*. When it rises to 34*, the compressor engages briefly until the...

Fixes & Summaries for Ford
Fix/Summary Answers
1991 Ford F-150 Custom 5.0L Misfire VIN: 2FTDF15N6M
Thanks for all your help. I found a chewed by pack rats fuel injector harness below the plenum. I'm assuming that the open circuit was affecting one of the quad drivers to shut down. Two quad drivers in the ECM, one for every 4 injectors. Once I replaced the ...
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