Mackpro

We are looking for the VIN of a CXN613 with a 14,000 # steer axle springs. We are changing them over to the heavier springs due to being converted to a RV/motorhome. Thanks for any help!

Look under the center top of the dash where your CB would set, a triangle shape cover with 3 screws. should be a small piece of paper with fuse location on the cover, if not I can post the fuse chart location.

Here is the diagram, If you can figure it out your better than us. Starting with the CXP, CTP, and all Macks with the MP engine, they switched over to the Volvo style wiring diagrams and they are horrible it read. The older diagrams my 8 year old could read and understand.

Replace the big solinoid that is right in front of the fuse panel. This powers up everything that is turned on with the key switch. They carry alot of amps/heat so after a few years they start kicking out. They naturally get hot enough that you cant hold your hand on for to long (this is normal). We replace 1 or 2 a week. They made a couple different styles by many different vendors. Some of the first were black plastic, most now are round metal. Be sure to get one from a Mack dealer, we have some trucks come in with Ford starter solonoids on them, they dont last long.

I guess it was the first ETECH's , later thay came out with a download and we were told to remove the resistor. SL210013 Pub Type: Letter Group Code: 210 Number: SL210013 Former Number: Date: 10/23/1998 Model: E-TECH™ ENGINE Title: ENGINE MISFIRE — E-TECH™ ENGINE Engine Misfire — E-Tech™ Engine In certain vehicle applications and operating environments, a temporary engine misfire with accompanying white smoke may be experienced on some E-Tech™ engines. This condition will generally be noticed when the engine is idling with the coolant temperature in the normal operating range, and little or no cooling air flow across the charge air cooler. It may also be noticed when a loaded vehicle accelerates after a momentary stop (such as stopping for a traffic signal, toll booth, etc.). To eliminate this condition, an engine ECU service data file has been developed by Mack Trucks, Inc. To receive the appropriate data file, a request must be made to the District Service Manager serving your location. Other means of correcting this misfire condition, such as installing a resistor, must not be used. Additionally, any trucks which have had a resistor installed, must have the resistor removed, and the engine ECU must be reprogrammed with the proper service data file. To summarize, the following procedures must be used to correct an engine misfire as described above: Contact your DSM and request to have the engine ECU data file activated. Use MackNet to download the engine ECU service data file from the MACK Mainframe. Program the engine ECU with the new service data file. Upload the verification file to the MACK Mainframe. Remove the resistor if one had been previously installed.

Yours is a ETECH 460 with a Jacobs brake. Does the engine brake work good when it's cold (first 5-8 miles)? If it does it needs the external oil line kit installed for more oil pressure to Jakes. There are some other upgrades as well.

It was a 680 ohm resistor in the intake air temp sensor wiring, that was so long ago I cant rembember if it was the first E-TECH's in 1998/99 or the VMAC II's electric pump engines around 1996. Hopefully Bobo will remember more as well.

I just pulled up the Turbo warranty and it's now only 1 year 100K. see attached PDF file. WA-2007-015 Borg Warner Turbocharger Service Parts Warranty Change (Aug. 28, 2007).pdf

The wires for the pryo are not there, you have to add them, I usually make my own harness and wire it into the VECU inside the cab. The wire/plug for the boost pressure should be there right behind the EECU (engine computer)just add the sensor. Then you have to take it to a Mack dealer and they will go into the VMAC online (Mack Mainframe)and turn on both sensors and reflash and reprogram both ECM's. I'm not a fan of factory pryometers due to constant problems with sensors and wiring harness. You can make your own boost pressure sensor set up easy. Just a low pressure air guage 0-50 psi and put it in a single guage pod from Summit or Jegs, run you a 1/4" plastic air line to the intake manifold, cheap and easy.

I'll look into it for warranty monday morning.

Most all Mack garbage trucks (MR and LE) around here have the Haulmaxx. They claim less maintance and easy to replace pads but not very good off road performance. I like the Mack but thats all I have ever known.

I work for the same shop in Paducah. Yours is a pre-ETECH engine aint it? The engine brake on thoses are somewhat trouble free. There are 2 different lash settings on thoses brakes , one is .085" but I cant remember the other. There are some upgrades to those I think. Wonder if the freeze plug fell out of the rocker arm shaft on yours? It happens on alot of ETECHs with the Jacobs brake. The broken rocker arm shafts only happen on the ASET's with the Powerleash brake.

I can give you the # of a good plastic surgon in Nashville that retourqued my wifes top end. Nice "D" now.

Mack 3P is right, the MID 136 means ABS problem. The 5050-14 is probably really a "S" 050-14 which means SID 50 and FMI 14 If I was at work I would have my ABS book and could tell ya what it means.

We have several trucks with the oil leak and the ones out of warranty keep on trucking. Look at the date on the turbo replacment ticket and I will look up the ASET reman turbo warranty and see if we can get it covered. I will send in a warranty E-service to see what Mack's offical word on the problem is. I would like to check out your engine brake as well. Not to scare you but I had a cracked rocker arm shaft last week that caused your same problem.

We have had a rash of reman ASET AC turbos leak oil as you describe. It seems to leak where the center section bolts on to the rear exhaust section (by the actuator). It is never a bad oil leak, just a little drip onto the frame rail. I will have to check on warranty on the purchased turbo. Do you have the reciet of where it was bought and/or put on? You must have the reciet. Also did you change to a different brand of oil than what was used before? We had a ASET that we sold new and always used Mack bulldog oil, the truck got traded in and we resold it and the new customer changed over to Rotella and the engine started using oil like crazy. We switched back to Bulldog oil and no problems. I know Shell Rotella is one of the best oils out there but this engine didnt like it.

The password could be anything. The former customer must have had a password put in at a dealer. The truck dosen't come with a password from the factory. A Mack dealer can redownload the ECU and erase the password, usually takes less than an hour.

Here is the wiring diagram for a 84 and up MH

Today we were ordering/specing out a new CHU 505HP MP8 with SCR, the new Mack rears were a $5000+ option over the Rockwell rears. While I hate dealing with Meritor/Rockwell or Eaton warranty, I could not convence the customer to go with the new Mack rears. I didnt get a chance to check the weight savings of the new Mack rears.

Check the fuel return jumper (from head to head)between the valve covers. They have rubber o-ring/seals that start to leak after many years and can let air in and let fuel drain back to tank on some types of injector pumps(depending on the type of overflow valve on the injector pump) I think it takes a 7/16 wrench, just tighten the 2 nuts usually they are really loose.

Very good tip on the air filter housing. There is a alinment tab on the housing, but it usually gets bent over and then the air filter housing will just go on any which way. Starting around 1998 they came out with a different style housing that bolts on only one way so it usually line up perfect. In around 2004 we started seeing alinment problems again but Mack came out with a service bulletin where you can recut the hole in the hood to match up with the air filter housing.

When I first started my job here at the dealership (22 years ago) my second oil change/service was on a old RW sleeper truck that had a Cummins engine, it to had the steering gear under the LH steer axle spring, I always thought that was strange. I have seen a old Mack cabover with the same set-up, I think it was a Cruiseliner. We used to have some old ones out back for parts. I used to cut off the big draglink tube ( tube from steering box to passenger side steering knuckle) and use them for blackpower cannon barrels, very thick and seamless. The steering box is just a Sheppard 92 series with a different style mount. My Sheppard 92 series service manual covers this model. The 92 series is a great steering box used in mostly in extra heavy duty use (dump truck and garabge trucks) and was used by Mack till just a year or so ago. I took a class at Mack on steering gears 10-15 years ago sadly Mack dosent offer classes on them any more ( or on most vendor componets). I pulled up your truck on my warranty side and it has a recall on the seat belts? Federal recalls never expire! Selling Dealer Code: H327 Vehicle Details Make: Mack Model: RWS722LST Model Year: 1985 Application: Other GVWR: Vocation: VIN: 1M2V230Y3FM001471 Cab Size: Build Date: 12/11/1984 Shipment Date: Delivery Date: 02/14/1986 Delivery Odometer: Registration Transferred: No Registration Completed: Yes Owner/Lessee Details Name: WM CAVILL & SON

Please, get the Dealer/saleman to explain to everyone who is going to drive how the system works, it is not that hard to figure out, the late 09's had the self cleaning 7th injector which took care of most of the problems. We have several with over 350,000 mile and still have the orignal DPF filter and still going strong. I would leave the orignal exhaust tip, you dont want rain water going down in there and most all chrome tip out's wont last due to the high exhaust temp during regen. There are resaons mack puts these on there. Our sale dept did have some DVD's on the DPF for our customers.

Their Stage I ,II and III injectors are alot cheaper than our factory injectors so I almost have him talked into it. His engine still has the orignal injectors in it and I know they are worn and need to be replaced.

Did you notice a big difference when you insatalled your Rochester stage II injectors? I talked to them today and they were very helpful, I have a customer with a 2000 ETECH 400hp and needs just a little more HP. I tried to do a HP conversion to 427 or 460 through Mack but due to EPA reason's this truck/engine can't be programed any higher. I do all the HP conversions at our shop and every now and then the EPA says NO. We are thinking of going to aleast stage 1 injectors.