robert b

im new to this site.. i have a 2005 gmc crew cab 4x4 and pull a 36ft 5th wheel . wondering if there is anything i can do as far as keeping the water temp down alittle (thermostat aux fans .plugs ) would love to hear any ideas thanks

frankschev

I have never heard of a 6.0 pulling a 36' fifth wheel before. Luckily it's just overheating and that you didn't drop the transmission. Unless your fifth wheel only weighs in at less then 14,400 lbs wet and you have a 4.10 rear axle you are over weight

frankschev

And you didn't mention if it was a 3/4 or a 1 ton. Makes a difference. The 3/4 will normally tow a little more then the 1 ton due to the fact that it is a little lighter. You also have to look at your GCWR too.

robert b

its a 3/4 ton and the camper weighs 9800 empty and im guessing 11 to 11500 loaded food clothes , Beer etc lol yes im sure its maxed out only on long hills it gets really warm 230 240 degrees 2 yrs ago i installed a trans cooler with a fan that helped with the trans

frankschev

Camper? You posted that you were towing a 36' 5th wheel

robert b

yes a 36' 5th wheel camper and it weighs about 11000 to 11500 loaded... the truck is a 3/4 ton crew cab 4x4 6.0 66000 mi

jasmith

I have an 2006 Silverado 1500 HD that has recently started running high temps on the transmission. Had the fluid,filter changed a few days ago and cooled down some. Truck has 117000 miles and 6.0 Liter and 3.73 gears. Occassionally pull 30 5th wheel camper that has UVW of 6920 and never had heating issues before. Trans has always stayed between 100 to 160 degrees unloaded and now has peaked at 255 cruising down the road normal speed and unloaded. Any ideas out there. Thanks

EinST

Welcome to the forum. Insufficient flow through the transmission oil cooler due to a restriction or TCM malfunction? Fluid temperature sensor circuit malfunction? You'll want to get it serviced immediately. Chances of a ruined transmission is too great the longer you wait.

jasmith

thanks for the info. will check out all of your recommendations

therewolf

Hey robert b,

Welcome to the Chevy Forums.

I moved your thread to the proper section.

Please read the rules, and re-post in the

"welcome" section.

I have a 2004- 2500HD. For some unknown reason, you're

keeping information vital to helping with the answer to yourself.

Is the vehicle an HD? What is the gear ratio?


Three things I can think of right away which may help:

1: The vehicle's drivetrain is going to heat up more than usual

when towing any large weight trailer or boat.

2: Have you changed the overflow cap on the overflow bottle?

In most basic terms, it's this system's "radiator cap".

3: The 6.0 has a waterpump with gaskets which were

poorly sealed in the engine factory, on some engines.

The Waterpump is burdened with a brick of an OEM fan

clutch, so expect the waterpump to fail, if it hasn't already.

Fortunately, it's an easy repair, compared to the" L" and

large-block engines of the past. The waterpump is not buried under

the entire fan pulley assembly, as in years past.

Parts and tools are cheap, and easily found at parts stores.

Be sure to replace the fan clutch with a lighter aftermarket

unit...