Mackpro

If its a mack trans, check the nut that holds the rear yoke on. For the jumping out of gear see this bulletin. shifter.pdf

Check the speedo sensor adjustment and also go over these 2 bulletins. I have seen these issuses happen and not turn on the check engine light but log it for a few seconds in a laptop. The first version of the 9-2 bulletin it had us checking the starter, as if the starter was orignal, they had issuses in the solonid shorting out when the motor leaned due to torque under a load. They took that part out of the bulletin though and I cant find the orignal. 3-4 stumble.pdf 9-2 code.pdf

Its a Midliner CS200P made by Renault .

Dont freak out, its kinda normal. sb210031 oil temp.pdf

Our dump truck guys here with the CV's and CT's with the AI engine are getting 4.9 to 5.2 total average, with 5.3 being the highest I've see. The older RD's and CV's and CL's with the regular ETECH engines get a little better. My friends 2013 GU with a 415C MP-8 with 22,000 miles on it is getting 6.2 going down the road, 6.6 in cruise and 9.0 in the sweet spot. However his idle time and PTO time bring him down to 5.8.

If its the exhaust pin always breaking , here is the fix. jake.pdf

His 2012 had 505 with Mack 310 trans and 3.42 rears. His 2015 has the 505+, same Mack T310 but 3.21 rears, His overall MPG average has jumped 1 mile per gallon over his 2012. I think he is at 7.1 overall . This is a daycab that pulls all kinds of different trailers and has no MPH limit on the throttle pedal but is driven by the same person/owner. I'll try to get get a print out of the trip MPG when he is here next.

My buddy special ordered one and just got it 2 weeks ago. I can get u specs on it if u want. He had a 2012 CHU 505 and just traded it in for it

You hitting atleast 33 PSI boost under a load? Call and talk to these guys, they dont list anything for the ASET engines but maybe they have something thay can do. http://www.rochesterfuel.com/products/mack-performance/

Done the Step 12B software update yet? Its for poor throttle responce.

Usually theres a mud/snow switch on the dash to disable it. Its all part of the ABS system. Pull the ABS brake fuses and see if that turns it off.

Probably turbo bad. But you might want to remove after cooler hose at intake manifold on driver side of engine and check for oil. If oil in intake then the turbo shot . If no oil in intake get engine hot , remove the turbo and cap the oil supply line and start it, hold a clean piece of cardboard a foot away from the exhaust manifold and watch for specks of oil. If you get oil there it could be valve seals/guide, to much idling or worse.

I thought I had read that you replaced the water pump but now I see that you didnt. Replace it cause if its original I cant believe its lasted this long! LOL. They are made from the cheapest pot metal and plastic known to man.

Did your truck have the Borg Warner Cool Logic fan clutch? We have had lots of problems out of them. We now order most all our stock trucks with Horton 2-speed fans on them. Have they reflashed the engine ECM? PV729-FSB263-039_M.pdf

On a 1998/99 to 2001 ETECH, there is no difference between a 427 and a 460 except for the download. Jumping from 300/350/400 up to the 427/460 levels does require off set cam gear key way, turbo and injectors and download. On a 2002 and up CCRS ETECH engine the difference between the 427 and 460 engines is turbo and injectors and download. All CCRS, ASET AI/AC engines use a straight cam gear keyway.

I always vote for cups and or injectors. Here is the new info on inspection of your injectors. Look closely at your sealing surface of the injectors , Use the graphite paste and and new injector hold down bolts. Check for cracked tips on the injector with a magnifing glass. Cracks run up and down of the long tip of the injector that goes into the cup. And some times the whole body of the injector just breaks in half. Of course it could also be the the fuel pressure relief valve in front of the head, the filter fuel stand, the fuel supply pump or just a leaking fuel line on the suction side. Look for fuel dripping from where the supply pump bolts the the power steering pump. Seems like 90+% of the time its cup or injector related in our shop. Conical replacement info.pdf

On the buzzer, make sure the power divider is not turned on or the air bags are not lowered. On some trucks this can be programed to turn the buzzer on.

Yes, our guy said it was a MP-8/D13 that they were adding the NG to. And yes, he said its downfall is that it will have SCR on it. Cumins/Westport looks like the way to go for now.

I see the UPS natural gas CXU's through here all the time. They seem happy with them. We just sent a guy to school on them. Cummins sure has the market cornered on the class 8 engines for now. Our Tech that went to school on them says the Mack MP natural gas engine is being tested now however its a hybrid and runs on diesel and naural gas both

Side cover fill plug 20953259, The new plastic side covers are know to leak. They came out with a new cover kit, 85136434 side cover.pdf

Throttle pedal code. But the engine should not quit if this code goes active. You can unplug the throttle pedal on most all Macks (ETECH engine and up, cant remember on the VMAC series engine) and the idle will go up to 900 rpm but never die.

Is your 2003 460HP an ASET (EGR engine)? The 2006 you mentioned is a 460P with 487 HP is a ASET engine. Usually 2003's are ETECH (CCRS) engines. The two engines are wildy different and your better off with the ETECH engine. Unless you like changing high dollar EGR coolers and valves and turbos. If your 2003 somehow does have a ASET 460E (460HP) it can be bumped with a software download at a dealer to 460P. No parts change needed. Send we the last 6 of your VIN on the 2003 and I can see what can be done.

Sorry for the late responce but you can now sign up for Mack Parts online system and view the same parts breakdowns as the dealer. Dont know whats involved in signing up but heres the link. http://www.macktrucks.com/parts-and-services/parts/select-parts-purchasing/

Whats the actual code #? Mack has a bulletin that comes out every week or two with common problems and fixes, even for older trucks..

The factory radios are hooked into all the ECM.s on the truck. we can reprogram the radio for different issuses and there are even malfunction codes that show up on PTT for the radio. We have lots of complaints on the factory radios with the hand free built in.