|
Re: 91 R2500 4L80E problem
I've got a 4l80 in my 80 suburban. I shift it manually. Going from 1st to 3rd skipping 2nd is an indicator of solenoid B powered on too early. Both solenoids have to be off to get 2nd gear.
As follows:
1st - A ON, B OFF
2nd - BOTH OFF
3RD - A OFF, B ON
the computer/TCM is the obvious culprit here, as you wouldn't be able to shift it in all gears manually if it was something internal.
__________________
*UNDER CONSTRUCTION*
'80 Suburban C20 (C6P) (Silverado)
- '68 472 (Edelbrock 1813, PH8026 LT's, H pipe) / '91 4L80 (manual shift,vac modulator, 350 converter) / 14B FF 3.21 G80 34' s/ '96 GMT400 interior
|