I have a 2012 dodge ram 2500 cummins turbo diesel why would tow haul quit working and my turbo will not kick in.. also my transmission is not shifting right?

Asked by Feb 10, 2014 at 08:11 AM about the 2010 Dodge Ram 2500 Laramie Mega Cab 4WD

Question type: Maintenance & Repair

My turbo will not kick in. so now while driving up a hill the truck has a hard time
speeding up. It will drop any where between 5-10 mph before reaching the top of the hill
depending on the incline. Also my tow haul mode will not kick in. If I am towing my RV I
have to manually put my truck into 5th gear for it to even pull normal.
I have checked all fluids and fuses, none of which are the problem. I need help

also it is a 2012 but this thing will only allow my to pick as new as 2010

9 Answers

9,055

The turbo does not "Kick in" If the engine is off idle and producing enough exhaust the turbo should spool and start boosting the engine. If your above 1200 rpm there should always be boost available. The waste gate may be stuck open. As for the tranny and OD you will have to get someone to look at it. There is definately something wrong with the tranny. I take it there is no warranty?

2 out of 2 people think this is helpful.

there is a warranty. we are just stranded in the middle of Missouri. we were only about 200 miles from our destination. was hoping there was something that we could do without having to have the vehicle towed in. Is there such thing as a transmission transmitter? btw this is mikes girlfriend.. not wanting to make him look stupid. asking for help without him knowing. lol anyways no the turbo will not "kick in" at all..

9,055

Turbo If your giving it throttle, it should be making boost. With out a chip truck empty around 1200. With any load or a chip the 6.7 will make boost just off idle. If you have no boost there is something wrong. As for the Tranny is it completely controlled by the trucks computer. Two haul mode only does two things, changes the shift points (up and down) to better pull a load and boosts the tranny's line pressure which allows the clutch packs to grip tighter before slipping under higher loads. Even without tow haul that truck should be shifting up and down to maintain speed. How much weight are you pulling right know??

he has finally wake up and I explained what you said. he said that you are correct about all of the above but I am explaining it to you wrong. He says as he goes up a hill it loses power. says as you press on the gas expecting to get a lower rpm torque instead it loses its power. The RV is about 15,000 lbs. It's a 2007 cardinal 38 foot 5th wheel. With three slides.

9,055

Well 15,000 lbs is a decent pull. The 6.7 would normally handle it. I've pulled 33,000 lbs with my dad's 08 with the 6.7 6spd, touch over weight. It's normal to loose some speed on the hill's. So the tranny will not downshift at all. You have to manually bump it down with the toggle. And at the start of the hill do you have boost and loose it or your truck is not making boost at all.

Well we finally had it serviced at the dealership and all our issues came from bad gas.

9,055

Glad you figured it out. Now the 6.7 can pull like it should, again.

Yes sir.

20

What all did they service when you took it in I'm having the same issues

2 out of 2 people think this is helpful.

Your Answer

Add photo

Related Questions

  • 03 ram 2500 cummins 1 answer

    I was going to school yesterday and my cummins shut down going down the road. My engine light came on and my fuel liight came on along with the fuel gauge falling. I came to a stop and After a few ...

    2003 Dodge Ram 2500 SLT 4WD Quad Cab SB

    -

    Maintenance & Repair

  • Won't start 6 answers

    98 Dodge ram 3/4 ton diesel. when the key is in the ignition -not on- the fuel pump runs and tbe wait to start light comes on, will not start. Tried jump starting.

    1998 Dodge Ram 2500

    -

    Maintenance & Repair

  • Injection Pump and trouble Codes 21 answers

    So, Last week my injection pump went out. and thank God I still have a warranty on it cause it's a 2,000 dollar part. But is there a specific reason these go bad? cause this is the thrid one on this t...

    2000 Dodge Ram 2500 4 Dr SLT 4WD Extended Cab LB

    -

    Maintenance & Repair

  • Brake light fuse 6 answers

    While working on the lights for a trailer I was having trouble with the Brake lights - they didn't work. In the process I discovered the the brake lights on the truck were not working. I have a 1999 ...

    1999 Dodge Ram 2500

    -

    Maintenance & Repair

  • Cummins Diesel 5.9 16 answers

    What are the best mods to do to a 2000 Cummins Diesel for best performance, economy, and longevity?

    2000 Dodge Ram 2500

    -

    Car Customization

Ram 2500

Looking for a Used Ram 2500 in your area?

CarGurus has 5,612 nationwide Ram 2500 listings starting at $2,900.

ZIP:

Search Dodge Ram 2500 Questions

Dodge Ram 2500 Experts

#1 Dan Connell
Dan Connell
Reputation 1,970
#2 Ram2500Diesel
Ram2500Diesel
Reputation 490
#3 AJBurns
AJBurns
Reputation 420
View All

Related Models For Sale

Used Dodge Ram 3500
85 Great Deals out of 2,413 listings starting at $5,000
Used Ram 2500
194 Great Deals out of 29,788 listings starting at $5,950
Used Ford F-250 Super Duty
480 Great Deals out of 42,555 listings starting at $2,995
Used Chevrolet Silverado 2500HD
420 Great Deals out of 29,170 listings starting at $2,998
Used Dodge Ram 1500
546 Great Deals out of 12,938 listings starting at $1,795
Used GMC Sierra 2500HD
123 Great Deals out of 13,769 listings starting at $1,500
Used Ford F-150
3,377 Great Deals out of 203,971 listings starting at $1,273
Used Chevrolet Silverado 1500
2,600 Great Deals out of 149,097 listings starting at $1,800
Used Ford F-350 Super Duty
457 Great Deals out of 26,742 listings starting at $3,900
Used Ram 3500
173 Great Deals out of 14,522 listings starting at $14,000
Used Toyota Tundra
662 Great Deals out of 28,228 listings starting at $1,599
Used Ram 1500
1,386 Great Deals out of 113,766 listings starting at $6,999
Used GMC Sierra 1500
1,144 Great Deals out of 58,007 listings starting at $995

Used Cars For Sale

2007 Dodge Ram 2500 Laramie Mega Cab 4WD For Sale
4 Great Deals out of 40 listings starting at $17,995