International Truck Problems

My LT truck was in an International shop for 3 weeks and it still isn't totally fixed... The EPU powered sleeper AC wasn't calibrated properly and shuts of within half an hour at 13V. It's supposed to drain the battery to 12.2V which triggers the the engine to turn on to charge the EPU to full.

So I've had to keep my truck idling. There's a problem with that too because it doesn't want to send cool air to the sleeper sometimes. The only solution that I could find was to make sure the manifold under the bed, which splits hot and cold air, is turned all the way to the cold position. Unfortunately, that still hasn't worked and there must be another manifold under the dash...

Has anyone had these problems with an International LT? I'd like to know how to solve the problem with the cold air not going to the sleeper. I assume the problem will keep coming back.

And the International trucks just have a poor design in terms of insulation. Here's why:

1. The windshield curtains hang in front of the dashboard AC vents, which causes cold air to circulate with the hot air in between the curtains and window.

2. Poor / minimal body insulation. The windows on the sleeper feel like they let a lot of heat in too.

3. Inefficient sleeper AC placement. The sleeper AC is on the outside, passenger side and towards the drive tires. The vents in the sleeper are all the way in the back. So the cold air has to travel all the way from the front through the hot cargo bay up the back of the sleeper (which can be hot too if it's in the sun) to the vents. The air travels in regular black PVC pipes with no insulation.

The freightliner that I was in before had its sleeper AC directly behind the driver’s seat. The air was a lot cooler coming out of that one.

Unfortunately, I can't help with your sleeper problems since I have a day cab.

But I will say since I was assigned to a International last year, I am not a fan. Everything feels super cheap in it, I'm sore after I get out at the end of the day.

I hope I get assigned to a Freightliner or KW next time we get new tractor assignments.