Tow/haul Mode

[mikewaterskis]

I have a NBS Crew Cab 6.0L 3.73...

 

I tow a Boat about 2 miles in my development around 25 mph with 3 stop signs and then 1 mile on the road about 45mph to the ramp... it seams when it is in tow/haul mode the engine is racing to much in a high rpm when i'm in the development.... should I just keep it off on these trips?

 

btw the boat weights 4000 w/trailer

 

 

I been towing my work trailer with the tow/haul mode off mostly since it only weights 1500 lbs.....

[pwall]

Keeping the engine higher in the power-band won't hurt it.

In the end, it's easier on your transmission.

I would keep it on.

[seamonster]

Check your owners manual, I think mine said to turn it on if the trailer is at least 70 or 75 % of the max trailer weight for your truck.

 

I think you are under that!

[2017HD]

It also says that it will not hurt anything to use Tow/Haul with less weight. Too bad they did not put a 4.10 rear end in that Max Tow Pkg.

[Gozer]

It also says that it will not hurt anything to use Tow/Haul with less weight. Too bad they did not put a 4.10 rear end in that Max Tow Pkg.

 

Max Trailering Package (NHT) includes 4.10 gears (rated to tow 10,500#):

 

 

 

Includes Vortec high-output 6000 SFI 6.0L V8 engine with 367 hp @ 5500 rpm and 375 lb-ft of torque @ 4300 rpm, super-duty transmission, 4.10 rear axle, Ride-Control suspension, locking rear differential, electronic Autotrac transfer case, engine oil cooler, external transmission cooler, 17" x 7.5" 6-lug polished aluminum wheels, front and rear disc brakes, trailer wiring and trailer hitch. INCLUDES L76 and G80 and K47 and KNP and Z82 and GT5.

 

 

You can also get 6.0L (VortecMax) with 4.10 gears on its own.

[C & A s Dad]

I agree with Seamonster. My 02 owner's manual instructs you to use it when towing 65% or more of the max tow weight. I would also agree with Randy, it will not hurt anything but will likely offer little benefit if you are towing only 1/2 of your max weight.

 

However, what Patrick said is true. If you are pulling a good amt of weight, do not worry about the increased RPMs, these motors like to rev and have a "sweet spot" they like to run in. The T/H mode will help your transmission while towing.

[TEE]

If I'm in town and below 40 MPH while pulling my boat...turn it off and put it in 3rd.

All tow/haul does is increase shift points and line pressure which is great for highway but, winds it out too much around town.

Use common sense and you'll be fine.