880joe

Did you check the water level sensor

I believe I know what you're talking about on the firewall. Been driving these CH's for over 20 years first time I've needed to work on that part of truck

Thanks V I'll have a look and see if I can find it

Where is the tractor protection valve at on a 99 CH mack?

I believe you are going to need to stay with the AC engine or have to do a lot of modifications to make something else work. What is wrong with the engine you now have?

Guess I lost your email address could you pm me again with it I took some photos today

Yes I got it I've just not had time to get pictures

I believe the 6-4 code means the ecm is not communicating with the vecm

I just had to replace the engine ecm on my 99 CH if I remember correctly it gave a 6-4 code. It acted up 1 day then ran fine for a week or so then went to leave 1 day it started and died immediately then never ran until I changed ecm. 

A friend of mine tried replacing an 07 AC engine with an 01 etech and never could get it to run said wiring was totally different and a nightmare don't know you would run into on an AI

I have got 1 on a transmission I believe it has 1 ear broken off where it bolts to the transmission and leaks a little grease out but don't think it affects the operation of it any

If it's a mack rearend it may be the peanut cluster wore out and slipping

Joey Mack is from somewhere in North Carolina

Yes they will fit but the door stopper that keeps door from opening to far is different

I've been told you could use spring loaded ones and have an engine with steel rollers and spring loaded push rods acording to my mechanics. But that engine also didn't sound right through the intake and nobody could figure out why

So can you use the spring loaded pushrods with the steel rollers?

I had ceramic lifter fail and mack dealer wouldn't put steel lifter back in

Have you tried just leaving it a little low and see if it quits pushing coolant out? Also what dealers are you dealing with so the rest of us know to stay away from

I would possibly be interested in the whole truck

How much for the etech?

So being a guy on the mack site an describing the t800 cab and ride the way you did how do you feel about the R model mack cab and ride? I never drove a t800 but the R model macks that I drove wasn't alot of room and sure didn't ride like no Cadillac

You're going to spend alot of money changing cam gear for a little bit of hp just my opinion. If it were me I would put the 355/380 program in it and leave cam alone a whole lot cheaper and same amount of torque

I'm surprised that mack dealer would put the 427 file in without changing cam. I tried having a 460 turned down to 355/380 and they wouldn't do it without changing turbo,injectors and cam. He must have a better dealer. Also I thought I read if you didn't change cam key it get hot if you didn't watch it close

A pre CCRS engine would need the cam key changed