Guys with pre-emission trucks what are your typical breakdowns?

The beauty of it is that there aren't nearly as many wires as the newer trucks/engines. My engine only has 14 wires. I got rid of all unused spares/extras in the harness and integrated the jake wiring and control wires from the crane. Originally the jake was a separate add-on harness, and the wires from the crane were hacked in. None of the connectors are proprietary. Most of the interior connectors are Metri-Pack 56 (Packard 56) and the exterior are Weather Pack

When I bought my truck I pulled out a 55 gallon trash cans worth of rats nest like the picture Catmando posted. It had 25+ years of things being added/removed/rewired, with nobody taking the time to strip out the old wires. I've rewired maybe half the exterior wiring and cleaned up the interior where needed. Wires being a mile too long and spliced with butt connectors bug me. It's not hard at all to make it look factory, and keeping everything clean makes it easier to track down problems

 

can’t wait for them to see how good their “maintainer” packages are after that long….

sorry but I could never recommend a Mack, ptsd is to severe from that ole dm600, with the 237 that just won’t die, no matter how much I want it too

 

At least you CAN work on your truck. Emission issues off to the dealer.

 

Bought my truck with a little over 300k miles. Has 780k miles now.
NEVER ON A HOOK. I try to stay ahead of stuff, I dont do much myself anymore my arthritis is getting the best of me.
Only 2 big things happen is a clutch recently, and 2 years ago I had some spaulding on the cam they noticed while doing a valve adjustment. It didnt show up in my oil samples, and may have been like that since new, the detroit parts are so reasonable I had it and the corresponding rocker done while it was there and i was off.
Other than that, regular maintenance, zero lost down time. Everything has happened while i was home.
Oh, sorry, had an injector die on the road, got it in to a shop in PA, was out in 4 hrs. Forgot that one.

 

Air line breaking. In 10 months running my postpre emissions truck, I have only gone down for tires, and 3, THREE. Plastic airlines snapping due to the cold. No more issues now that I run rubber lines

 

The trailer to truck ones? Or elsewhere?

 

Truck to trailer. Had one break leaving a truck stop. You should see the meltdowns that happened behind me. One guy tried to sneak pass and ran my hinges down 10' of his trailer. Thankfully didn't damage mine, but I had to threaten him with a cressant wrench to get him to stop, and not keep damaging his trailer more.

After the first broke I carried a spare since I couldn't find rubber hoses. -10 weather takes a toll on plastic.

 

Gotcha, been there, done that, i also prefer the rubber line kit. Glad-hands still occasionally snap in really tight turns (think close to a 60 degree angle, stretched and flatbed) but thats a pretty quick fix, maybe 10 minutes