Join Date: Jun 2012
Location: Eagle River AK
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6.0 at the shop, but would like a second opinion
I have been running my truck (2006 F-350) with no problems. I went to pick up a 5th wheel travel trailer that I just bought on monday. When I hooked up the 7 way cable my battery light came on, I assumed it was due to the trailer sitting all winter (I am in Alaska) and not being charged. I towed it about 40-50 miles to my house, the battery voltage stayed around 11v with the light on the whole way.
The next day I went out to warm up the truck and the truck was reading 7-8v, but it still started. The radio went out, AC/Heater went out, head lights flicked on and off. I parked, removed the alternator (passed 3 tests at the local auto parts store), then called for a wrecker. That was about as far as I feel comfortable going into the truck. I was reading error code P0620.
The shop said that I needed a second alternator, although I have been running the truck since I bought it last October with one, and through an Alaskan winter on top of that. After that, they said that the PCM may need to be replaced, and I hear that those things almost never fail.
Ever hear of suddenly needing a second (lower) alternator after running one?
2006 F-350 6.0L, Crew Cab, Lariat
Eagle River, AK