Trans O/D light flashing
 

Just replaced transmission, but the OD light is flashing, where should I look? Any ideas?

2001 v10

bring it right back to the place you got it replaced. should have a warrenty? but you could pull the code and see what its doing.

You need the code to ascertain why the trouble light was activated.

Like Alaska posted, take it back to the place that replaced the trans and have them diagnose it.

Stewart

Sorry guys, I should have gave more info.

I bought a used trans from a reputable salvage yard with 36,000 miles on it and I need a little more info on this OD light flashing thing or how to pull the codes.

Thanks

Any trans guys on here?

Mark Kovalsky posts here and he's a retired Ford trans engineer, but I'm sure he's gonna need more info just like we do.

You need to find someone with a PSD compatible code reader like a Predator, SCT Xcal II, or Auto Enginuity tool.

The regular scanners you can use at Autozone and Kragens don't work with the PSD's.

Once you find a scanner that will read your codes, post them up here or in the 7.3L PSD forum so we can help.

Stewart

PS - The reason the OD light is flashing is because you are setting a trans related code. The SES light in the dash is for engine related codes and the OD light flashing is for trans codes.

Was the light flashing before you replaced the transmission? If it was the original code is still in there and needs to be cleared.

That's what I would have said.

I too will be interested in the diagnosis of this issue. This happened to me for the first time (OD light flashing) on my '02 PDS while pulling through the Smoky mountains this weekend. I've pulled a 32 ft. trailer since 2003 and have never had any issues with the transmission.

I've got a DP Tuner with 40 HP tow, and I locked out OD for the mountain climb. Just a little while later, after OD was unlocked, I noticed it flashing, and when it shifted to OD, it was a very hard shift. After getting to the campground, shutting it down, then restarting it, I never had any problems all weekend long or on the way back home.

Not sure if my transmission is going out or some fluke happened. I've got 145k miles and usually it tows like a dream. I've had regular transmission maintenance performed, but may take it in and have it checked out soon.

When the original Trans failed it Displayed

These codes:
P1000
P0741
P1744
PO740
P0743
P0750
P0753
P0755
P0758
P1746
P1754

So I cleared these codes and all came up again except P0741 & P1744

When the original Trans failed it Displayed

These codes with new trans:
P1000
PO740
P0743
P0750
P0753
P0755
P0758
P1746
P1754

Mark, I'll edit this post and input the descriptions as well.

New Codes:
P0740 Torque Converter Clutch Circuit Malfunction
P0743 Torque Converter Clutch Circuit Electrical
P0750 Shift Solenoid A Malfunction
P0753 Shift Solenoid A Electrical
P0755 Shift Solenoid B Malfunction
P0758 Shift Solenoid B Electrical
P1746 Electronic Pressure Control Solenoid - Open circuit
P1754 Coast Clutch Solenoid circuit malfunction

Old Codes:
P1744 Torque Converter Clutch System Stuck in Off Position
P0741 Torque Converter Clutch Circuit Performance or Stuck Off

It sure looks like the transmission harness isn't plugged in. Every solenoid is showing an open circuit.

Thats about what I figured too....