Hey all, picked up an automatic 92’ 2500 with the 6.5TD/4L80E a month ago after it sat untouched for 3 years (PO, a family friend, unfortunately passed). Ran and shifted great when I picked it up.. he took great care of this rig. I’m an 80s/90s euro car guy so new world but couldn’t pass it up when the family offered it for a good price
Anyways, 1 week ago I was getting off freeway and suddenly the truck won’t shift and tops around 45mph (redline). Codes it’s throwing:
22 - TPS Signal Low
28 - Trans pressure switch error
59 - Trans fluid temp sensor circuit error
85 - PROM error
87 - EPROM error (flash memory error)
Watched videos and tested TPS prior to codes, seemed to read 7-12 so way high but I feel I’m doing it correctly. Now seeing the other codes I feel it could be TCM? Thoughts and advice?
Photo because we all like photos:
Anyways, 1 week ago I was getting off freeway and suddenly the truck won’t shift and tops around 45mph (redline). Codes it’s throwing:
22 - TPS Signal Low
28 - Trans pressure switch error
59 - Trans fluid temp sensor circuit error
85 - PROM error
87 - EPROM error (flash memory error)
Watched videos and tested TPS prior to codes, seemed to read 7-12 so way high but I feel I’m doing it correctly. Now seeing the other codes I feel it could be TCM? Thoughts and advice?
Photo because we all like photos:
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