2010 f350 6.4 electrical craziness in Hawaii - Ford Powerstroke Diesel Forum
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post #1 of 2 Old 09-20-2019, 02:13 PM Thread Starter
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2010 f350 6.4 electrical craziness in Hawaii

Trying to help a friend diagnose an electrical issue on his truck .. originally he was getting code U0101 . We checked the connector at the trans and was loose . This code hasn't shown up again yet . We took it for a test drive and after driving for around 4 miles all kind s of lights were coming on and off , the gauges were bouncing around or completely off , loss of power and it sounded like a jet engine out the exhaust. after coming to a stop the truck locked him out and wouldn't restart. After dc the battery for about 10 minutes the truck could restart again but got code P0100.. The reader said it lost connection from PCM and ECM . When I looked up the code it says it is an issue with the MAF sensor .. Has anyone had any issues with this ??Any ideas? please help
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post #2 of 2 Old 09-20-2019, 02:58 PM
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with the salty air I would start with basics:

weak/dying batteries make these trucks seem like they are possessed. Remove them and get each one tested when not connected to anything.

Check/clean all grounds battery cables

check and apply a tiny bit of di electric grease to all wire connections clips

check all fuses for corrosion and replace as necessary (just the tiniest amount of dielectric grease will help future corrosion

Check alternator and associated connections

**again I cannot stress how a single or pair of weak/dying batteries will just wreck your life. The powerstrokes need strong steady power.

My bet is bad battery(s) and or multiple corroded grounds/power connections
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