trans problem
- Thread starter WTF
- Start date
You have a way to get codes? Limp could be caused by by a bunch of things and wthout the codes, there's almost no way to know what's going on. And autozone will not b able to get tcm codes. They'll only get a p0700 from the ecm.
Sent from my SPH-D700 using Tapatalk
Sent from my SPH-D700 using Tapatalk
Why yank the whole VB? The PSM is three bolts and one electrical connector... much easier than swapping the entire VB.
Mike, would the PSM cause the C, D & E solenoid electrical codes?
WTF, the codes mean:
p0700 - TCM Request MIL
P0768 - Shift Solenoid "D" Electrical
P0763 - Shift Solenoid "C" Electrical
P0773 - Shift Solenoid "E" Electrical
P0841 - Pressure Switch "C" Stuck Open/Performance
P0871 - Pressure Switch "E" Stuck Open/Performance
Last edited:
The codes mean there is an electrical problem or a bunch of valves are stuck. Never seen more than one valve stuck, usualy E shift valve. I'm betting electrical. When you see that many valve body codes it means the TCM is seeing -40F. HMMMMM.
its the blue looking part on the bottom of the VB , with one electrical plug in the end of it . :thumb:
Check your external electrical connections first. Look for corrosion or broken wires in the round trans connector and the red TCM connector. Also inspect the entire length of the harness between the trans and TCM to see if it is pinched or rubbed through somewhere. This all only takes a few minutes and is easier than dropping the pan.
Here's a pic of the VB:
That happens to be a 6 speed, so don't expect yours to look exactly like that. Anyway, see the blue module with the tin cover on the left side? That is the PSM.
Here's a pic of the VB:
That happens to be a 6 speed, so don't expect yours to look exactly like that. Anyway, see the blue module with the tin cover on the left side? That is the PSM.
Thank you for the pic I got the psm swaped out
And still throwing codes sonow I'm going to change the solenods it looks like the. Trans is a 01 or 02 becouse it dosent have that solenod up at the passnger front do you think I will have to change tcms
And still throwing codes sonow I'm going to change the solenods it looks like the. Trans is a 01 or 02 becouse it dosent have that solenod up at the passnger front do you think I will have to change tcms
Did you check the external connections and carefully check the external harness along it's length like I said in my previous post? The problem is most likely there. Throwing parts at the VB hoping one of them will fix the problem is the last thing you do IMO.
Look for corrosion in the connectors - peel back the rubber insulators on the wire side with a pick and look for green corrosion. Automotive OE's are cheap asses and use unplated copper wire, hoping no moisture will ever weep past the connector seals and cause an issue while the truck is still under warranty. Usually, it works, but the trans connector in particular is in a very vulnerable position for water contamination. Check the TCM connectors as well. And finally, run along the length of the harness and look for chafing against the body or other components that might rub through. Be meticulous in this.
Look for corrosion in the connectors - peel back the rubber insulators on the wire side with a pick and look for green corrosion. Automotive OE's are cheap asses and use unplated copper wire, hoping no moisture will ever weep past the connector seals and cause an issue while the truck is still under warranty. Usually, it works, but the trans connector in particular is in a very vulnerable position for water contamination. Check the TCM connectors as well. And finally, run along the length of the harness and look for chafing against the body or other components that might rub through. Be meticulous in this.
All fuses were checked. Sorry about that break but I had ta go to work
I'm still seeing a few of those codes so I was thinking about swaping the solenoids