I just bought this truck and it didn't want to shift any higher than 2nd. Gear. It was in "limp" mode so my husband changed out both of the Trans solenoids and trans filter. The truck ran great shifting and everything for about 40 miles and than went back into "limp" mode. We got the code 1886 when we scanned it. He took out the computer and replaced it and it ran great for another 20+ miles and than back to "limp" mode again. Any idea what to check next and how?
Wednesday, December 26th, 2012 AT 4:34 PM