Mackpro

The AB timing light is a must to get the pump timing right 

It’s usually only a couple hours labor but finding a dealership that will do it is the problem. It’s not very easy and one screw up and you can fry a ECM easily. It’s a multi-step process of manually downloading the software from Mack and saving the old data off the ECM and combining them and then putting it all back into the ECM.  Plus most of the guys that did programing on the gray engines are retired or have quit. My old dealership won’t do it anymore. 

Your truck is a Step12A so the VECU can be flashed to 12B . Also the VECU and engine ECM have never been replaced or software updated since the day it rolled off the line according to the Mack dealership we use( where I used to work). Every Mack dealership has access to the “VMAC online” system to look at all VMAC 3 trucks 1998.5- 2007.5year models.  This shows software and programming and history and components for each truck. 

The miles are stored in the VECU Vechicle control unit and are displayed in the digital readout on the dash cluster . As long as VECU wasn’t wiped out and replaced the miles would be correct . 

The speedo not working can cause the engine to derate for sure.  If a Mack transmission, check for loose or missing bolt/washer that holds the yoke to the back of the trans. Very common for them to come loose and fall out. Otherwise a faulty speedo sensor or wiring could be the issue. I’ll check with my buddy and get a answer on the software level for your truck. 

Live in western Kentucky,  around Paducah. Working for a company with a fleet of fairly new Mack’s for about 4 months now. Before this I worked at a Mack dealership for about  30 years. I started there in 1988. 

Let me do an E-service case to Mack corporate first and let me see if they will do the download first 

Let me know if you get it's 

Just sent email

Just sent email Good news and bad news. Good news is yours is a CCRS engine and you don't have to pull camshaft and install off set key way when you get over 400 hp like the early ETECHs . Bad news is to do a 460 hp you have to add a boost pressure sensor and do some wiring and it requires the crappy waste gate turbo that gives lots of problems. Back to some good news , the 427 uses a standard type turbo . Give me your email and tomorrow I'll try to attach some info on on the CCRS motor

Good news and bad news. Good news is yours is a CCRS engine and you don't have to pull camshaft and install off set key way when you get over 400 hp like the early ETECHs . Bad news is to do a 460 hp you have to add a boost pressure sensor and do some wiring and it requires the crappy waste gate turbo that gives lots of problems. Back to some good news , the 427 uses a standard type turbo . Give me your email and tomorrow I'll try to attach some info on on the CCRS motor

What year model and last 6 of VIN. If ETECH engine , it can be done but costly, most dealers don't do HP upgrades on older trucks any more . Due to legal issues we don't do HP upgrades anymore unless it a truck still under warranty. I can give you the parts list to go to 400,427 and 460

With a high flow muffler as well, trying to squeeze out that last little bit of HP.

We already got a Disney Limo picking us up at the airport!

Going buy plane but the bugs are getting bad here as well!

I have had this valve cover of of this same new mp-8 over 8 times in 3 months!

60 series Detriot style would be great

Having to stop pumping to do a regen?

I know what you mean,I took one apart 3 weeks ago and now have to put it back together!

Our parts guys didnt know that so that why the wait!

Wow, sounds like you have your hands full. It's been over a week waiting for my pistons and liners for a MP7.

I'm still waiting on parts, no pistons or liners in the US

As long as it has a Bulldog on the hood! LOL