JoeH

I don't think there's a VMAC4? Correct me if I'm wrong? Yours should be a VMAC III.

All the way towards the driver seat in the row "above" those three breakers.

You don't even have #40 installed. It should be a 25 amp Mini fuse or breaker.

You should be able to figure out Who is Who from these pictures.

https://www.diesellaptops.com/products/diesel-explorer Also download this onto a laptop while it's still free, and when you can stomach the cost buy their $683 Diesel Link Adapter so you can plug into the truck. You can see if all the computers are powering up and communicating. For us, it wasn't listing the Engine ECU, which ultimately was because it wasn't powering up due to fuse connectors for #40 were loose.

I had same issue on mine, fuse #40 was loose. # says CB-40 (Circuit Breaker)

Quality worse than I expected.

Here's the diagram for the 2003 we have been working on. Bergeys had to put in a service request directly to Mack to get this diagram for me. Top rate dealer! Look at fuse #40, check that the fuse is in there good and tight. Also you need to run Blink Code Diagnostics. Key On Engine Off (you can run it with engine running but you aren't there yet), hold the cruise control button (I forget which one) down til the Lightning Bolt goes out. It will then blink out a 2 digit code. Count the flashes. When that code is done the light will come back on and stay on. Press cruise again to display next trouble code. Repeat until it continues to display numbers it's already put out. Tell us what the codes are, so we can look them up for you. Also buy yourself Mack Manual 8-211, that's the VMAC III diagnostics book. It's a must have!

There is one thing it CANT be: Cheap!

This truck is a breeze to work on. First time we have had a transmission out and back in in one day. Old seal spun in the flywheel housing. We could move it by hand. New seal has Bearing Mount Loctite, and is recessed 1/4 inch per spec in our handy shop manual. Thanks Mark! Only frustration is this thing was supposed to be in Iowa yesterday. This snow storm coming in across the Midwest to new england later this week means the truck won't be in Iowa til Monday or Tuesday, barring any other roadblocks.

Was supposed to leave yesterday, but Illinois apparently doesn't sell trip permits, so we have to reroute an additional 500 miles to go around it, and we found a rear main seal leak so we have to pull the trans off today to replace seal.

Dumb question, you aren't driving around with the PTO on right?

Yea. Mack trucks only draw from one tank. Usually passenger side. Crossover line allows fuel between the 2 tanks to self level. I drove a Peterbilt (Poorlybuilt) that had a switch.... You could suck from one tank and return to the other? Seemed kind of dumb to me. But what do I know?

"If I do not have an IFTA license and have a qualified motor vehicle traveling interstate what do I need to do?" OUr truck doesn't "qualify" it's PA only. Need a trip permit to "qualify"

Need to drive our 03 Mack MR688 from PA to Iowa. JJ Keller can sell me a trip/fuel permit for every state but Illinois. WTF? Does Illinois sell trip permits? Our truck/DOT # is set up for "Intrastate only" in Pennsylvania. Is there any legal way to drive through Illinois or do we have to detour through Kentucky and Missouri to get to Iowa?

Curious, how much did the harness set you back? We just bought a 2003 AI350. Harness seems ok... For now....

Hell, Mack should add the wiring harness to the filter tune up kit! "Change your wiring harness with every oil change!" Make your truck run like new again!

Don't have the paint code for the white that Cementech uses so this truck gets a grey cab for now because I have a leftover gallon of it from my pickup.

Cab painted. Baking overnight and in the morning we slap it together fast as we can!

That's our 228" wheelbase Titanic, 1995. It was white with green accents. We have a 1988 RD that was an H&K Locust Ridge truck, that was green. It's white now. The H&K truck has a 218" wheelbase and steers night and day better than the '95, but we have yet to complete the '88 project, so it's just sitting at the yard.

Trash trucks and concrete pumps. Same here. The CemenTech mixer on a conventional cab would be about 3 ft longer than the RD model in the background, which has a 228" wheelbase and steers like the Titanic.

That is a good looking truck though....

We deleted the one on our '79 endt676 because the fitting on the intake manifold broke. Barely makes any smoke, but this truck has always spooled up fast and ran like a beast.

I've never seen a Mack that makes 38 psi boost. My older endt676's peak at about 27, and my e7-350 is the same.