Rule #1 when it’s below ZERO

[2cyber71]

Originally Posted by Dutch Star Don

Before you blame that hose connection, you might have another issue. We were camping in Williams California a year ago in February. It was in the teens at night, and I saw that SAME hose clamp appear to be leaking. It's the hose that attaches to the trans cooler.

I tightened the hose and it seemed to do the trick. When we got home, I looked under there and it was still wet. A little further research and it wasn't the hose. Those trans coolers have two welded holes on top. Mine was leaking. I later discovered there has been a boat load of those trans coolers leaking. Literally a boat load as it was a defective batch, poorly welded, from China. It's the same trans cooler that's been used for years on every Allison.

When I found mine leaking, so was my friends on his 2019 Allegro Bus. Tiffin replaced it and had a pile of them on the floor. Here is a photo. This may not be your issue, but you should check.....it's covered under warranty.

I found mine by cleaning/drying the whole unit and then checking it the next day. The welded holes are on the top. I used my cell phone camera to get a photo. The fluid was puddling and then running off the side and over that hose and clamp, making it look like the clamp was leaking.

Attachment 383259

Don, I checked the top of my Tranny cooler. It was dry. The drip was at the hose connection. It took about 1 1/4 turns to tighten it.
I lost about 1 cup to 1 1/2 cups.

[2cyber71]

Originally Posted by Ray,IN

That's why diesel engine mfgrs. only uses constant-tension hose clamps.
Heavy equipment and OTR maintenance depts. cannot afford down time due to cheap hose clamps.

I’m gonna buy those.
Thank you

[Dutch Star Don]

Originally Posted by 2cyber71

Don, I checked the top of my Tranny cooler. It was dry. The drip was at the hose connection. It took about 1 1/4 turns to tighten it.
I lost about 1 cup to 1 1/2 cups.

Glad to hear it. There were so many of those coolers that were bad.

[Ray,IN]

Constant-tension hose clamps even have a torque value = 60 in/lbs.

[2cyber71]

Originally Posted by Ray,IN

Constant-tension hose clamps even have a torque value = 60 in/lbs.

Thanks Ray