Joey Mack

Riveting, hard hitting, and precise news coverage!!! Thats a good one.... Keep e'm comin. 👍

several things come to mind, valve adjustment?? Engine brake (if equipped) hanging up??

There have been several times where Biden called her "President"... The amount of damage tat has been done to our country in the last 4 1/2 months is terrible. The workers in this country are the new "Slaves".

Very Diplomatic.... I wish we could hang out and have a beer or few... Jojo

What I cant understand, is that 155 million people "voted" in a country of roughly, 350 million.... The lib's fussed about racism at the pole's, by making it "hard" to vote.... B.S.!!! I should have looked up how many people are'nt old enough to vote, and, in jail, and not citizens..... So, my guess is... roughly half the country cant vote???? how do you get so many votes for the whole election? Jojo...

P.A.I. makes parts for the 673. I have one in my shop now. I also buy from "AGKits.com". the book i posted was a printout that one of my favorite Mack parts guys printed for me. It's 125 pages.. It is loaded with part numbers, for almost all points on a truck... Joey Mack

I bet it runs great....

rings??

P.M. me for the diagram

👍

you must be pretty good at reconditioning the EUP lines by now,,, 😄

Left of the clutch pedal on the triangular bracket with the 2" hole in it... If it doesnt work, its probably unplugged because they are annoying

I have never seen that square shape before.. I've been around decades of R's and RD's... is it some sort of R-700 hood?

It comes out of the side of the block, right side around #4+#5.. The 45 degree fitting is a regulator. 80-100 P.S.I. is good pressure. You can put a gauge on it. I have made a few adapters to hook into the fitting and still keep the fitting in place and if you have the fuel sensor in your fitting, making an adapter is easy. just "T" into it, and attach your gauge, and screw the sensor in to the "T" so you dont throw codes or cause any other ECM issues. jojo

fuel pressure regulator...

Grounds.... Pull cluster and clean the ground bolt to the left. It is a 6mm bolt, (10mm socket) If it has the star washer, remove it, buff the paint clean and scrape any heat shrink glue from the eyelets. Do the same next to the fuse panel on the right side. Then clean the ground on the left side of the engine block in front of the starter, also clean the frame ground bolt that is across from the block ground. There will be a #4 wire going from the block to the frame there. Then clean the ground breaker on the firewall that is next to the starter relay.. Good luck, Jojo

there is a reversing relay on the the top of the intake manifold. It goes to the bimber valve in the front of the injection pump. Just check to see that the air line and fittings are good, sealed, tight,,, etc.. stay simple for a bit. The E-6 is a great engine... Go bull dog!

I had another thought. did you put gauges on it and see the high side pressure? if it spikes passed the High pressure setting, it will shut the compressor off too..

does it have an APADS module? and is it flashing a code?

Is the evap core freezing up and shutting the system down? Do you see a good flow of water draining from the drain tray on to the ground when the A/C/ is on?

the last time i had this issue it was in the compressor clutch. is you clutch hidden and I think the plug has 3 wires in it,,???

pic's please? I have a lot of spare parts but never heard those part numbers... jojo

if you have a power.divider switch on the dash, and it still works.... you can drive on the front axle. just take the intermediate driveshaft out.. you can look at the front diff and see a longer power divider, and there will be a 1/4" air line going to it.. jojo

Shawn, you responded to a 4 year old post,, what is going on with your truck, and we will try to help you...Joey Mack

I'm guessing this engine is an ASET CEGR engine? if so, has the air filter for the VGT turbo been replaced and has air flow to the VGT actuator been checked? The actuator can also stick, causing poor operation. that is an easy fix.. The filter is below the starter, and there should be a "T" fitting plumbed in by the treadle valve. it is probably silver in color and it has a hexagon shape to it and a red rubber vent button on it, unless it rotted away. The fitting is a pressure protection valve that opens at around 85 P.S.I. when this system fails, you will have power loss and what you described, due to the VGT not operating correctly.. Good luck, jojo