Code PO758 [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: Code PO758


kennjenn
05-16-2005, 01:46 PM
Shift Solenoid B, Circuit Electrical.

What and where is this solenoid? Anyone, anyone?

Thanks, Ken

:help2:

quantum mechanic
05-16-2005, 03:07 PM
You have to drop the tranny pan and it's #2 on the wiring harness from where it enters the housing. It cost ~$15 and takes 5 minutes to install once the pan is down.

69camarox
05-16-2005, 08:33 PM
save your self some agravation replace both a and b solenoids while you have the pan off filter too

kennjenn
05-16-2005, 08:48 PM
Great! Thanks guys!. BTW what do these solenoids do anyway? I was planning to replace the pan with a larger capacity one anyway. This gives me the excuse!

Ken

69camarox
05-16-2005, 08:53 PM
they are the shift solenoids they allow fluid to pass through them or block fluid to move the shift valves in the valve body to apply the appropriat clutches or bands

kennjenn
05-16-2005, 09:02 PM
Hmm, wonder why one would go bad. Only have 24k miles on the rig.

Ken