Mack Technician

Ghost in the J1708 serial link apparently. You want me to go through and scan my repair manual or have you already found a copy on-line?

Run a spare ground wire and check signal voltage. Check chassis record and make sure you have the right one that is not hitting the wall and be certain you have not clocked it degrees off during installation.   

Once you have leaks fixed and turbo inspected build a manometer and measure the blow from the crankcase. If you have 6-8" of blow your heading to the shop. Also check your air intake system for the dust leak that took out your piston rings.

9 hours ago, Keith Pommerening said:

It's going to be a mild winter and not much snow.  Put the blankets on the septic field so it will not freeze, and mounted the snowblower on tractor.  Be ready for it and it will not happen.  Love the smell of diesel smoke in the morning, it means the truck started, well at least for a while!

Hope the prophecy comes true, however, coming up by you Feb 14th and we need a nice, fat, sheet of ice on Leech .  

J1939 is a general term for a "CAN"- Controller Area Network. It's full name is SAE J1939 (society of engineers). AKA- Lots of computer inputs going down one shared line. Can think of it as "common access network". It is dedicated to communications and diagnostics. Usually a three twisted-wire (yellow+green + black) harness that you can identify by it's triangular connection. Yours is having a communication issue. What is the blink code number?

16 minutes ago, 1958 F.W.D. said:

New engines do ok on it because it gets burned off in a timely fashion. Go ahead and park your car for a few months though and come back and see what happens.
And then there's E15. Google how many manufacturer's will NOT honor warranties if you put E15 into your car.

Snopes..........

BMW, Chrysler, Nissan, Toyota and VW have said their warranties will not cover fuel-related claims caused by E15. Ford, Honda, Kia, Mercedes-Benz and Volvo have said E15 use will void warranties, says Darbelnet, citing potential corrosive damage to fuel lines, gaskets and other engine components.

The AAA says the sale and use of E15 should be stopped until there is more extensive testing, better pump labels to safeguard consumers and more consumer education about potential hazards.

Good reason to avoid single line gas station pumps.............

Some critics have maintained that because most gas stations don’t want to go to the expense of putting in new tanks just for E15 and will instead likely install blender pumps (which mix the ethanol and gasoline together in the right proportion for the selected fuel type), the possibility exists that an E10 customer who uses a pump directly after an E15 customer might receive as much as a third of a gallon of E15 from residual fuel remaining in the fueling hose, to adverse effect. It is unlikely that such a relatively small amount of residual E15 mixed into a gas tank of E10 could cause problems for standard automobiles, but it may potentially be an issue for gasoline-powered

vehicles and equipment with smaller fuel tanks, such as motorcycles, ATVs, chain saws, and lawn mowers. The EPA initially considered heading off this potential issue by imposing a requirement that E10 customers purchase a minimum of four gallons of gas at stations using blender pumps that dispense E10 and E15 through the same hose, but that proposal has since been dropped in favor of requiring labeling on blender pumps stating that such pumps are solely for passenger cars and trucks.

At the end of 2013, the EPA announced it was reducing the amount of ethanol that must be blended into gasoline in 2014 (in part because the overall demand for gasoline in the U.S. has dropped), requiring transportation fuel companies to blend 15.21 billion gallons of ethanol into the nation’s fuel supply in 2014, down from 16.55 billion gallons in 2013. Critics of the EPA’s blending requirements pointed out that the announcement came just four days after the Associated Press published a lengthy investigative article documenting substantial environmental harms caused by ethanol which concluded that “The ethanol era has proven far more damaging to the environment than politicians promised and much worse than government admits today”:

https://otrperformance.com/product/mack-aset-ac-egr-performance/?gclid=COyxzuS2kdQCFVGAaQodRUsCgg

Speaking broadly on OEM's (not just Mack), VGT calibration is a fine way to identify a bad variable turbo. If you are not stroking properly it may show itself by an inability to calibrate. 

Sounds like your getting AI427 performance out of a AC427, not right. They generally respond faster than AI or pre-emissions.

Our worst cold issue was with fuel slobber gluing the exhaust valves solid, especially PLN. Additives didn't matter. Customer would crank it up on a cold day, drive across town and shut down. Fine on a fall day. At sub zeros the unburned fuel slobber would cool into epoxy on the exhaust valve stems and bend the pushtubes at next start-up. At first Mack would warrranty it and then said "no, you will advise (require) your customers to reach suitable operating temps at every start-up". Really only a couple repeat offenders that would do that, most guys are rolling for the day.

If we brought the truck into the shop for a clutch adjustment, during the snap, and it had to sit outside afterwards, mandatory, we had to drive it eight miles on a burn off.

5 hours ago, fjh said:

Any fault codes ? You need to provide detailed info if you want a decent answer to your questions! Air pressure to fuel system don't tell us much! history ? When it started! ? bla bla Bla!

FJH, you seldom walk away from an inquiry without asking "WHAT are you talking about". No matter how painfully random it is.

Can the host build a pre-req questionnaire? Something for issue inquiries? An AI service writer with the four "W's" or flow chart? This sight is fairly well tweaked, you'd think it was possible.   

year

make

Model

miles/hours

Symptom

Frequency

active code present

component repair history

etc

etc

They could have a specific flow for each group heading. 

We have a mobile V8 CAT gen, behind a Pete, that can power the factory and one more smaller unit at our Dam. I stabilize that fuel since it turns over so slow. Speaking in favor of additives...... the engine runs great on 10 year old fuel that may have turned back into dinosaur meat without stabilizers.  

Big Gen has its own building. What does your group put as a shelf life on fuel? Tank full all the time, stabilized with Sea Foam stabilizer, steel 400 gallon, inside storage, no elements beyond ambient swings in unheated building?  

(2000CL) Seems like your immersed in sharpening the edge of this truck.....is it a dandy or just generally needy?

17 hours ago, 2000CL713 said:

Can the powerleash setup be installed on the older motors (2000)? 

Would cost too much, camshaft/tubes/pump/covers/liability/etc. Follow Mpro's SB-recipe and you have a "good enough" brake without redesign. 

We used to drop the pan, leave it as a catch pan and hook the shop motor oil fill system into the engine oil gallery. I would lay under while one person would pressurize the engine. We would note the amount of oil loss from the cam bearings. If the bearings looked tight we would start small on PI updates.   

28 minutes ago, 2000CL713 said:

what year did they add the external oil lines? i have a 2000 year motor and my cousin has a 2001 i think and he had oil feed line that i didnt so then i had it added.  

the engine brake on my 2005 375hp Alison 6spd auto felt alot stronger then the one in my 2000 CL 427hp 

They started July 2, 2000.

2005=powerleash 

Most issue was getting enough oil to the top of engine to feed engine brakes. While your looking at trucks you will see units with external oil lines feeding the valve cover base housing, that tells the story. They tried...

1. high volume oil pumps

2. tighter main bearings

3. external oil lines

4. upgraded rebuild kits that let Jake run on less volume

IMO the final Mack Powerleash was the only good (gray engine) performer they made.

powerleash.pdf

13 minutes ago, Mackpro said:

Even when new, the ETECH Jacobs brakes were so weak that the later trucks had the option of turning on the air fan when the engine brake came on to help slow the truck.  This parameter was turned on in the VECU software, we rarely turned it on. 

We had a pow wow on how bad the early engines were.......our "crack-pipe" plan for the engine was to have the Jake relay also power a solenoid valve that applied 10 PSI of regulated air to the brake system and had a loud audio recorder in the cab that went POP POP POP POP POP POP POP .

On ‎10‎/‎14‎/‎2017 at 5:23 PM, HeavyGunner said:

We don't either, raise chickens and have laying hens. My wife and I usually put 2 elk and 2 deer in the freezer every year and every other year or so we buy a pig from the neighbor who raises pigs without growth hormones.

Rockies are full of organic government beef. Lucky, lucky man HG.  

Evening Nigeria......

Google Mack e media and search SB215026

On ‎9‎/‎29‎/‎2017 at 12:46 PM, kamp_dogg said:

Here in Green Bay, tickets have been sold out for every home game since the 1960's. I guess in Jacksonville or San Diego I could see that people would be pissed. I'm just saying I don't see it happening here. Then again, Green Bay is not your average big NFL city.

 

Kamp Dogg you cheddar-head 

If Luck is a Lady then Karma is her nasty, hag, sister...

R.I.P. Aaron   

WOW!!    ....Build a dedicated thread on BMT for the BETTERMENT OF MACKIND!!!

While your brain is fresh from the fight.

For effect...

High five on a good find. We bought our (pretty clean) 1998 for $17,500 with, I think, around 800K miles.

I started a Lutheran Pioneers group at our church. We do all the things "progressives" generally hate...... Boys become men, Girls become women, pray, bible study, Speak of God openly, learn gender specific skill sets, explore patriotism, etc.   

Scouts have a noble history and would still if they stayed out of California. Follow the cases and all trouble started in Cally and Jersy.

There are a bunch of alternatives to Scouts that will permit you to legally use your good sense. I had my eye on Trail Life USA too, they have a great set up.