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Is the ABS light also on?

Which connector are you hooked up to? The round 9-pin is the one to retrieve TCM and ABS from.

What do they mean by this? If injection QUANTITY sucks (is super low), then start with injectors.

It could be a number of things. First you need to get the codes out of the Allison TCM. This is done at the 9-pin connector, and theoretically a simple HD code reader can do it. Common issues with the Allison transmissions include the range position switch, the internal wiring harness, and...

Did you happen to inspect the radiator fins for debris? The passages through the fins are pretty tight and a ton of debris collects in them, and it can be hard to see it.

Which engines are you looking at for the Ford and the Freightliner? The 2016 Hino does not have the troublesome burner system that the 11-14 trucks had. Regen issues are much, much less frequent. The Hino computers will still require special software to connect to them, so only equipped shops...

It is on the side of the transmission, where the shift selector rod goes through. They tend to get stuck, you may break it on the way off.

They really are. Unreliable electrical systems with wiring harnesses that are just zip tied in place. Looks like an early prototype was pushed into production. It's not a finished product.

He hasn't replied to my pm yet. I need more details.

We've taken this to PM.

P200C DPR outlet temp too high This thing did a screaming hot regen and may have melted the DPF. Don't just stick another DPF in there, because it'll just do it again. Have the injectors evaluated. They are the most common cause of DPF failure.

Sorry for the late reply. My dad is dying, and I'm struggling with that. And ignoring all the stuff I usually do.

P200C I think is DPR inlet temp too high. I gotta double check. You're gonna love this one.

When pockets of gas enter the cooling system, it can distrupt coolant flow. Having the low coolant level come on, with no external leaks, kind of makes me think this is happening. Let's not jump straight to headgasket failure just yet. First, pressure test the cooling system, preferably...

That breather filter does a pretty good job of keeping oil out of the intake.

How long does it take it to start if you crank the engine, idk, 10 seconds straight?

No, especially not if it advertises removing water. If there's water in the system, remove it manually.

Same water pump, afaik. Get all of the old DEF out of the tank and lines...and injector. Flush everything with hot water. Drain the fuel, put a fuel filter on it. Two actually, there's the burner fuel filter too. Be sure to fill that one all the way up, the burner will want to light off as...

They don't crank very long before starting. Usually less than a second. If significantly longer time is needed, I'd be suspecting a fuel system issue.