Thread: 4l80 questions
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Old 12-21-2013, 11:21 PM   #8
Billett
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Join Date: Jun 2012
Location: Pittsgrove, NJ
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Re: 4l80 questions

Just did the relay the other day so I know the relay side of it works, but not sure on the actual trans side. I think it's just soft to lock up because I'm pretty sure I feel it unlocking when coasting on the highway right around 45 and 60 mph or so.

Also, my tune shop said they've been having problems with the truck so that has probably been affecting my mileage as well.
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1968 C10 - Project Texa Go 6.0/4L80e
2003 Mitsubishi Lancer Evolution
2002 Ford Excursion 7.3L
2024 Toyota Sienna
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