Truck overheats in reverse while backing boat

[Pnwrider]

If the surge brakes locked up, it'd be obvious and since op didn't mention the trailer skidding up the driveway, I'd say this is an issue with the truck.

[tvano]

If the surge brakes locked up, it'd be obvious and since op didn't mention the trailer skidding up the driveway, I'd say this is an issue with the truck.

unless the trailer brakes are marginal and not locking up

[Pnwrider]

unless the trailer brakes are marginal and not locking up

Even so, should be obvious when backing up a boat. He didn't mention having to floor it...

[kayakwv]

Checked it again yesterday, and boat backs up fine, yet temperature rose to about 235. Next step is I will manually lock out the surge brakes to make sure they are not the issue; and listen carefully to check the fan clutch.

Edited August 17, 2015 by kayakwv

[ahopkins22LSV]

I'm going to ask a stupid question because this just happened to me on an 05 5.3l on short slow drives, my temp would rise to 230-235... Is your fluid at the correct level? Mine was low so it was losing prime (I think). It only happened twice to me on a short five ish mile drive so I immediately checked my fluid level. Filled it up to the correct level and then ran it for a while to cycle it all. After the engine cooled I needed to add a bit more and now it has sat at the correct level after a four hour trip home towing the boat.

Now I have to figure out how my fluid got low but it is well worth checking. Which will be fun because there has never been any puddling of fluid in my driveway or anywhere I park.

Sorry if you already answered this but I scanned the thread and didn't see anything.

[kayakwv]

No that's a good point. I did check my fluid levels after it first happened, and they were at the correct fill line at the time.

[ros]

My 2011 traverse can tow boat all day on highway .

And when I get home ..back it in drive .

Same thing overheats   !