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I finally suffered the loss of the air suspension on my 2014. I differ from everyone on this thread as my failure occurred due to heat. A rats nest surrounding my compressor caused a feed back loop of the over heat failure switch, allowed the pump to burn out and shorted the module. My dealer's...

It has been good for T6 here in Oklahoma until recently, now no supply. During the freeze in Texas in February of 2021 up to 24 refineries suffered from mild to sever damage to facilities. This created a two to eight week loss of production. Shell had stated that a shortage may occur in the...

This particular DTC or error message can be triggered by up to 86 different conditions. Multiple ECM updates have reduced the number of triggers so the incidence of this message has slowed since 2014. I cleared 99% of my occurrences by installing a GDE tune and checking MAP sensor and variable...

I haven't experienced that specific issue but several times while underneath my truck changing oil I noted that the wiring harness connector had been pulled from it's attachment point on the frame and was dangling in the wind. I pulled the connector apart, applied electrical connector cleaner...

The 5.0 Cummins returned terrible fuel mileage which is why it was marketed in a "Heavy Half Ton" not quite a 2500 but heavier than a 1500 so fuel mileage did not have to be advertised. That motor suffered the same issues as our 3.0 VM's due to EPA exhaust requirements and incorrect driving...

Check Engine Light, may also be known as MIL, Malfunction Indicator Light or SES, Service Engine Soon. The code is known as a DTC, Diagnostic Trouble Code, which will have a general description of an issue. That issue may be caused by a plethora of conditions and each must be investigated to...

If you have a Banks intake you have a delete tune as this manifold has no allowance for the EGR diffuser tube and does not have the swirl valves. Here in OK the used car lot has to disclose if the truck has had a system delete, but many do not know the difference. Any program update from the...

Yep. Fixed at dealer. All covered under AEM warranty except the ring itself, cost me $11.43. I no longer feel comfortable dropping a transmission with transfer case, not that young anymore, hernia surgery, shoulder surgery, total knee replacement.

My 2014 did the same thing, I replaced the temp sending unit and it cleared up. However, there always has to be a however, my wife's GC is doing the same with a Code, replaced the sending unit no go still coding. So I guess I will go with a new thermostat. Or I can reinstall her GDE EPA tune...

I like to apply Diaelectric Silicone Grease to all electrical connections. Water proofs and non conductive. Also check active voltage with DVM.

I take the supply fuel pump to mean the lift pump from the tank, its looks good. The CP4 sounds OK for cranking although I see more like 28,000 psi while running. Can you scope the span width and pulse of the injectors while cranking? Try a shout out to GDE they have come up with a couple of...

Wow that is a new one, never have seen or heard of that one. Had to dig to find it. OK lets start that code is referred to as "Reductant Heater Control Module Supply Voltage" it means that the module is receiving too little or too much voltage. You will not be able to just clear the code and go...

I agree with John, but I would add find a different dealer to perform your warranty work. If the diesel tech doesn't have a clue as to how to diagnose an eco then you will never be happy. By the way what is the CEL for, have they told you? Most of the issues I have had with my eco have been...

Forgot, a side note the guys at GDE are all former code engineers from the Big 3. You should get along just fine.

At present she has the OEM tune. This version there is little to no turbo lag and runs out on the highway just fine. Fuel mileage avg. about 24 mpg. There is a noticeable punch at 2K rpm as the Turbo spools up, kind of begs why a variable van? If we had not experienced the improved HP and Torque...

Looks like a list that I used to get when someone brought an engine into my shop for rebuild. Depending on where you live, emissions test or not, your delete with straight pipe will not work, however if possible will require computer tune. This has limited options. New turbo, from what I have...

To clarify; we had the reprogrammed ECM, when FCA installs the AEM it overwrites the tune. GDE developed an EPA Compliant Tune after being slapped with Administrative fines and Cease and Desist Order from the EPA. They now offer the EPA tune via a hand held tuner, I have retuned my truck but not...

Stealership absolutely. If they repaired the vehicle there is no way they should return it to you in "Limp Home Mode", that just sets the truck up for a cascade of DTC's. My 2014 finally lost it's tone ring magnet, replaced under AEM II warranty, I did have to pay for the tone ring as it was not...

I have run two sets of those same tires, great for regular driving, not so much for towing. Just put on a set of Pro Comp A/T's E rated Light Truck tire, much improvement in stability. Under 65mph, good WDH hitch, E rated tire, trailer brake, I run mine at 7.5% gain on two axle 8K lb tow hauler RV.

Solution: Green Diesel Engineering EPA Compliant Tune.