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Line pressures in N D and R are?

So your scan tool threw a code that the MAP sensor was faulty and not reading correctly with different TPS inputs?

Real good write up here: Scroll down to: So, my 6.5 is smoking like crazy, but I don’t actually WANT it to - Help! Rolling Coal & The 6.5 | Diesel Place

Start by pulling codes.

Sounds like intermittent connections over on the LBCD under the spare tire. 12 and 24 volt battery cables from the disconnect solenoids lead to this box and can be corroded at the ring terminals.

Was the torque converter still full?

Suggest you carefully verify all the connections associated with the transmission power relay. Maybe the controller is powered off with the ignition on and on with the ignition off. Also, the STE/ICE will not help you with this issue, it only provides very basic engine diagnostics such as...

Are you saying the transmission warning light is ON while the ignition is OFF? The transmission controller should be unpowered when the ignition is off. Suggest you still have issues in the relay area.

Need a Chinook to get anything out of there. Thanks for posting this. Lots of treasures there.

Computers have any nomenclature on them? Looks like something from the early 90's with a 286 inside.

Oh that helps. Since GVM is still in business, send them the VIN and they should be able to help you with the original info on the axle. It’s not a military axle. You may need to find a junkyard that specializes in ag equipment. I used to maintain a Terragator fertilizer spreader with a...

Well it's a Rockwell. What is a gvm. Does this have sand color paint on it meaning it was transplanted from a MRAP derivative?

Maybe, but don't forget USMC drives these in salt water every day in training and the trucks come back for more every time.

That is white RTV and seems to been applied by the Army fleet-wide. Idea being protect the connections from corrosion.

Suggest you check the operation of the mechanically operated transmission modulator. Maybe getting stuck in WOT/kickdown.

Suggest you get a fire hose and flush the two frame rails out. Right now there is still mud and salt inside the rails which will cause corrosion. USMC has issues with this when fording from landing craft.

NO PART OUTS!!!! Jack has exactly the right idea, build up as many complete non-running, non-restored survivors as he can and sell for a good price. These were parts trucks long ago but not anymore. Too desirable as complete trucks.

Wow. This has to be one of very few old school surplus yards left in the United States.

Maybe the positive cable is loose. Starter is sealed up pretty good so I wouldn’t imagine sparks are coming from inside. It bolts up in the usual GM fashion. It’s heavy.

My thoughts on that are: diesel and water stay separate, so it doesn’t seem likely that the salt that is dissolved in the water will jump across liquids. However, whatever the water comes in contact with, say for instance the bottom of the fuel tank, will be subjected to brutal corrosion. All...