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Anyone have any experience with this? I have a 2000 M1088A1. The CEL light came on the other day and with CAT ET hooked up, it showed code 164-11 and/or 164-2. Looking them up reveals a somewhat generic trigger of mismatch between desired and actual injection activation pressure on the HEUI...

I have one or two things to wrap up, but if all goes as expected, we will be heading out in our rig on Weds to southern UT/northern AZ for a week in the wilds. After a handful of shakedowns, this will be our first real trip. Our route will be I-84 through Baker City, Boise, etc... to I-15 and...

I found it on the schematic, appears to be fed by CB77 with flow through the gauge, then sender, then level. I assume there should be some sort of voltage at the connector from the chassis to the tank. Right? I swapped in my larger tank, did nothing but remove the old one, swap in the new...

Disclaimer: This is shared with the intent of sharing options available to FMTV owners. I have no affiliation with/relationship to Ryan. If this thread violates any forum rules, please delete. One of my cab airbags grew porous and needed to be replaced. I was able to track down OE...

I have a friend interested in a 1078 in the Melbourne area. I know it's a long shot but is there anyone local who wouldn't mind taking a look at it? He's based in Ohio and it's the other side of the country for me...

Had my manual CTIS system working perfectly until a roadtrip last week. After some work using the air compressor to blow air into the PCU, it appears the wiring and switch work I did are all working fine and it's sending and receiving the correct electrical signals to open and close the...

Trying to troubleshoot my CTIS. Anyone seen something like this before? I went for a drive and it was working fine. Stopped for a bit and when I restarted it, this happened. Solenoids keep cycling and when there's enough air you can hear the discharge. Both Brandon and Rick have helped...

Chasing a different issue, I created a new one for me. I over-tightened an air line on the power divider and fan clutch distribution block and spun it off. Anyone have a source for a replacement? A broken one looks like this:

My cab stopped air-riding and the fan stays engaged. I assume they run off the same feed which has been compromised somehow. Having a "fun" time digging through the manuals. Can anyone point me at the proper section of the proper manual? If there is something which typically craps out which...

How do you check the gear oil level in the axles? I put "some" back in after the hub delete but want to make sure I have "enough" in there. Should it be level with the fill plug? A certain distance below? Can anyone point me to the correct TM passage? Specifically for a 2000 M1088A1...

There is now at least one truck with 3.07 gears and the Eco hubs. Rick came over last yesterday and we spent a LONG quality day together doing a CTIS service in addition to the hub swap. MASSIVE(!!!!) thanks to him for his assistance! The verdict? I have only driven about 7 miles with it...

I am planning on a wet bath combination for shower and toilet. One of the things I have been struggling with is how to construct the actual space so that it remains water-tight even when expecting the camper body to flex to some degree. How are people building the walls and catch basin so that...

Hey gang, I've gone dark here a bit lately with a few other projects getting priority, but thanks to @Lostchain, I recently took a run at troubleshooting the CTIS issue I had in the fall. For those late to the party, I documented it here...

A bit south of town, in Canby, a small handful of us are getting together for a lunch rally. If anyone is interested in connecting, drop a line here. We'll be starting near the Canby Fred Meyers if you can make it. We won't be actually going there though, just nearby, so connect here for the...

Gang, Happy Thanksgiving everyone! A little while ago, someone posted about using rubber snubbers to center their beadlocks. I have a persistent intermittent issue which I think may be related to the beadlocks slipping inside the tires and I wanted to duplicate the concept, but can't find the...

Problem 1: My trans needs some fluid added. Problem 2: When I check the dipstick, it looks like it's ATF and not motor oil. I obviously don't want to add the wrong one. Actual question to the group: Is there an easy and definitive way to determine what's in the unit? Truth be told, I haven't...

Need some help from the forum's collective knowledge.... Took my truck ~100 miles yesterday to Eugene to have the habitat structure blasted and painted. Drive down was hot with a bit of traffic but went smoothly. The fan cycled a bit more than expected but ran everything ran fine despite my...

Looking at diagrams, it appears there is no reverse light provision in the standard socket connector. Is that accurate? I have a M1088 and can't imagine there isn't a provision for reverse lights, or am I just being naive?

I had vaporized anti-freeze fog coming from my heater last trip around the block. I haven't started ripping it apart yet but wanted to see if there were any tricks to it. Anyone done this recently and had any tidbits to pass along? This is also based on the assumption that it is the heater...

I am about to start tearing through the troubleshooting routines but if anyone has any quick check recommendations, here's the situation: I went to work on it this afternoon and it started fine. Ran it about 8 min, just to move it slightly and air up. Raised the cab. Finished working on what...