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Low Rpms When Stuck

brishan02

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brishan02 New Member

brishan02

Posted
Posted

I own a 2008 2500HD.So the other day I had parked on the side of the road in a grassy and very soft area. I was towing a small landscape trailer with a small 1 ton roller on it and also had a small load in the back of the bed (also a dump insert). So I go to pull out and see that I am getting stuck so I switch into 4 wheel drive and to my suprise I was only able to acheive at max 2000rpms. My tires were spinning and digging myself deeper, but I had no power above that range. :D This also happened about 3 weeks ago when I had to pull somone out of the mud when they were offroadding. Completely empty truck....and no trailer of course! I had absolutly no power.

Is there some sort of rev limiter that i am unaware about? I also own a 2003 2500hd and this is never an issue. It's almost like there is some sort of traction control taking over but I have no switch to turn it off! Please let me know if there is something that can be done or if its just my truck thats screwed up! :rollin:

Griptruk Enthusiast

Griptruk

Posted
Posted
I own a 2008 2500HD.So the other day I had parked on the side of the road in a grassy and very soft area. I was towing a small landscape trailer with a small 1 ton roller on it and also had a small load in the back of the bed (also a dump insert). So I go to pull out and see that I am getting stuck so I switch into 4 wheel drive and to my suprise I was only able to acheive at max 2000rpms. My tires were spinning and digging myself deeper, but I had no power above that range. :D This also happened about 3 weeks ago when I had to pull somone out of the mud when they were offroadding. Completely empty truck....and no trailer of course! I had absolutly no power.

Is there some sort of rev limiter that i am unaware about? I also own a 2003 2500hd and this is never an issue. It's almost like there is some sort of traction control taking over but I have no switch to turn it off! Please let me know if there is something that can be done or if its just my truck thats screwed up! :)

 

Traction control?

 

that will cut power when it senses slip.

 

Mine has a switch, I forget exactly what it says but it's down low below the radio.

 

-Jer

cfeiring Enthusiast

cfeiring

Posted
Posted
I own a 2008 2500HD.So the other day I had parked on the side of the road in a grassy and very soft area. I was towing a small landscape trailer with a small 1 ton roller on it and also had a small load in the back of the bed (also a dump insert). So I go to pull out and see that I am getting stuck so I switch into 4 wheel drive and to my surprise I was only able to achieve at max 2000rpms. My tires were spinning and digging myself deeper, but I had no power above that range. :D This also happened about 3 weeks ago when I had to pull Someone out of the mud when they were offroadding. Completely empty truck....and no trailer of course! I had absolutely no power.

Is there some sort of rev limiter that i am unaware about? I also own a 2003 2500hd and this is never an issue. It's almost like there is some sort of traction control taking over but I have no switch to turn it off! Please let me know if there is something that can be done or if its just my truck thats screwed up! :)

 

Traction control?

 

that will cut power when it senses slip.

 

Mine has a switch, I forget exactly what it says but it's down low below the radio.

 

-Jer

 

 

Welcome to the site.

Well I have a 08 as well, I have never had that happen to me, My truck has traction control on the Allison trans place the truck in 2nd gear per the manual that I have for the Allison/duramax combo. That could be what is going on, you may also have the G80 locking rear as well. Spinning tires do not help in getting unstuck in my experience, so it may be the computer preventing damage to the drive train when you suddenly gain traction. Maybe another more educated person will jump in here and provide some better info for ya.

 

As for the 09 gas truck I could not tell ya if they have a separate traction control switch.

builderpaul Enthusiast

builderpaul

Posted
Posted
I own a 2008 2500HD.So the other day I had parked on the side of the road in a grassy and very soft area. I was towing a small landscape trailer with a small 1 ton roller on it and also had a small load in the back of the bed (also a dump insert). So I go to pull out and see that I am getting stuck so I switch into 4 wheel drive and to my suprise I was only able to acheive at max 2000rpms. My tires were spinning and digging myself deeper, but I had no power above that range. :D This also happened about 3 weeks ago when I had to pull somone out of the mud when they were offroadding. Completely empty truck....and no trailer of course! I had absolutly no power.

Is there some sort of rev limiter that i am unaware about? I also own a 2003 2500hd and this is never an issue. It's almost like there is some sort of traction control taking over but I have no switch to turn it off! Please let me know if there is something that can be done or if its just my truck thats screwed up! :)

 

If you were spinning the tires more power will only dig you deeper. 2000 rpm in low gear is spinning them pretty good.

Before I had it removed the factory torque management would not let me apply full power. I pulled a loaded dump trailer and stopped in a tire rut. I got "stuck" with out even spinning tires. I could apply full throttle but not be able to even spin the tires or move. Felt like power braking. Using 4low will get you out of this situation.

Spinning the tires is a good way to get you stuck deeper.

If the TM is your problem you will need a tune to modify/eliminate it. Be advised it is there to protect the drivetrain from inexperienced drivers. If you remove it you will need to be careful applying the power.

ATMINF Enthusiast

ATMINF

Posted
Posted

Don't forget also that your G80 may not have locked up due to the speed, above 20mph or so, it will not lock up. Also alot of people get on and off the gas and this locks and unlocks the G80 and causes people to have problems when getting unstuck. Overall you have to stay steady on the gas and as you feel the rear lock, you have to stay on the gas at a constant, and keep the overall tire speed below 20 mph, until you get yourself out.

Griptruk Enthusiast

Griptruk

Posted
Posted
This is the button I was talking about...

I don't think I have that button on my 2008 2500HD.

 

 

 

Well, if I hit that and stand on it, it leaves 2 nice black stripes, I know that for a fact :D

 

-Jer

Phazer_II Enthusiast

Phazer_II

Posted
Posted
This is the button I was talking about...

I don't think I have that button on my 2008 2500HD.

 

 

 

I thought my '08 2500HD 4x4 was pretty well loaded, but I don't have that button either.

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