99 dodge ram 2500 diesel no power at highway speed, feels like dead pedal, also when cold and first start.

Numerous Conditions May Cause Engine to Crank But Not ...

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2006 Dodge Ram Laramie 2500, 5.9i liter Cummins ... I know in the old days the dodges had a way about starting up an engine and that would be where.

White smoke, rough idle at startup - Dodge Cummins Diesel Forum

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Jun 5, 2010 - 9 posts - ‎7 authors I have an 06 Dodge 5.9L that has a light white smoke and rough idle when first ... 2006Ram 2500 QCSB 4x4, 3" Carli coils w/ 1" Daystar spacer, ... Still ran good tho, dispite the exact conditions you describe on Cold Start up.

I had a 2000 2500 (not diesel) there are two sensor. one on the tranny and one near the rear end

If you're finding it difficult to service/repair
your car, get one of those online manuals. You'll not have to wait for others to answer, or rely on mechanics and all. Plus I know a website that has very good manuals online, without expiry i.e. for lifetime.
www.reliable-store.com

air lock maybe need to bleed it or remove filtre fill will clean diesol and refit and prime it

On my 99 ram 1500 it is on the right side of the tranny near the end with 2 wires that unplug. I replaced it with no lose of fluid, in 2 minutes.

i had the same problem in my 2003 Durango!!
turns out the auxiliary fan was not working!!
that fan should run all the time when the a/c is on!!
so start the truck, turn the a/c on and then go look at the aux fan (the plastic electric one attached to the radiator) and make sure it is spinning!!

Did you check to see if there is power to the glow plugs if not then that may be the problem and if there is power when you cycle the key not to start but for the plugs to warm up you may have a bad glow plugs.

try turning the key on and off a couple of times to prime the fuel pump after that see if it cranks (dont use starter fluid)

should be a switch on the clutch pedal check and see if it is still plugged in

this is referred to as a drive by wire system. meaning you have no accel cable. it uses a sensor on the gas pedal and on the pump. probably the pedal sensor going bad need to check the code and go from there