Truck is stuck in limp mode and send the code that the shift solenoid is bad. The pins on the relay are not reading with they are supposed to be.
The relay has pin ID on it lets use that. CAV 30 is B+ which is 12 volts, Cavity 85 is transmission control relay. Cavity 86 is Generator source. Cavity 87 is transmission control relay output. Cavity 87A is not used. open that relay and exposed the relay control see if it engages on its own if not collapse it see if you get out of limp mode.
SOURCE: 2006 Dodge Ram 2500 diesel truck----need inside fuse box diagram
If you are looking for the fuse box diagrams or any other diagrams for your Ram, check promanuals.net for a factory service manual for around 20 bucks or so. It's an invaluable tool for my Ram 2500.
SOURCE: 2002 dodge ram 2500 diesel
I'm no expert, but I am on my second Dodge. I have a 2004 Ram 2500, 125k miles on it. I traded in my 2001 1500 with 99k on it.
Your problem sounds like one of two things that happened to me. At 110k mi's it was not accelerating properly, particularly between 40 and 50 mph. It turned out my torque converter was going bad and I ignored it for too long and it's disintegrated pieces ruined my transmission. I recommend getting over to Aamco right away or to the dealer if you are still in warranty and have the TC checked out. The diesel is just too much torque for a torque converter on the automatic transmission, but manuals are too much of a pain these days. $2300 at Aamco to have the TC replaced and the tranny rebuilt.
The new problem I have now is when it acted like it was out of fuel and then wouldn't turn over after it died. My fuel lift pump (diesels have two of everything and the expensive one is always what goes) has gone bad and is currently being replaced, $700 part, plus another few hundred in labor.
Hope this helps.
B
SOURCE: 2006 dodge ram 2500 a/c fuse rely
The AC relay is located in the under hood fuse box. The cover should have a legend for location. Its one of the bigger black ones. You can rotate it with the horn or ABS one to see if its the problem. You may have a small fuse also in that box for it. If this doesn't solve the problem then you either have a leak or a computer problem. What a shop will do is try with a bidirectional data scanner turn the AC on. If they can't get it to turn on with a scanner then you most likely have a failed PCM if they verified you do not have low pressure or a relay or wiring or switch issue.
SOURCE: 2001 dodge ram 2500 v10 oil pressure drops to 0 then back up
you need to put an oil pressure gauge on it and see what happens.what you will find is that the sender unit is no good.
SOURCE: 1996 dodge ram 2500 auto transmission not shifting properly
Well, first do the service. Pull the pan down and look for metal shavings. If there is metal shavings your in for a transmission. If not, you may have a problem with one of the transmissions shift solenoids located near the valve body.
P.S. The Duramax has the Allison 1000 transmission not the dodge cummins and they are one of the best trannys on the market.
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