Mackpro
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Everything posted by Mackpro
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1998 Mack rd 688s etech 350 won't start
Mackpro replied to Lucky dogg's topic in Engine and Transmission
On that model RD with ETECH. Check for a dent in the engine ecm. If motor mounts are worn/loose and you make a hard turn or off road frame twisting , the ECM will contact the frame mounted fuel filter base and dent the ECM and short it out. Only takes a small dent. This will cause crank -no start issue. If you have another ETECH engine you can swap ECM and see if it starts -
Disregard my last post, Found what you need , VIN 1M2AA13Y7PW021620, CH613) Build date 10/12/1992 and it has the TAS-65 box on it.
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For once at our shop we have 6 Pre-Etech CH's on the lot. this is the oldest. It is an axle back. VIN 1M2AA13Y7SW044680, CH613) Build date 12/18/1994 . How ever this truck has the Sheppard M100 steering box and seems yours has the TRW Ross TAS65. You got a VIN ?
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Yep , the common rail engines have a separate harness under the valve cover. But the chassis harness is still mostly one piece
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Easiest way I can think of plumbing it would be installing in the turbo oil supply line. But actually you want your oil temp kinda hot. Keeps the condensation out. Oil temps ETECH.pdf
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I dont think you can reflash a VMAC 1 and reprogram with a new VIN. There is a reflash feature for VMAC 2 but unsure if you can wipe it out like the VMAC 3 's. If you were 400HP or less you could do the VMAC1 to VMAC2 conversion kit. VMAC1 to VMAC2 kit.pdf
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However today its the dreaded "Chassis Harness of Death". One of my all time favorites. Right up there with splinters under the finger nails! lol
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90% of mine is injectors/cups and exhaust. Job security!
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You should see the fuel in oil test for the new common rail engine. Lucky for us we have not had a single issue with the 7 or 8 trucks we have running around here for the last 5 months.
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2007 Mack truck showing several fault codes
Mackpro replied to Deland Webb's question in Mack Truck Q & A
This should answer your MID 128 and 142 codes. The MID 136 codes looks to be RH steer axle ABS sensor . 2008 MID fault codes.pdf -
Yours is showing to be built on 6/27/2000. And is a regular ETECH , not a CCRS . Your 355/380 has 1560 FT torque . To go to 460 HP it would take turbo and injectors and removing the camshaft and installing off-set key to prevent overheating in summer. And you would only gain 100 FT pounds of torque. The 350-400 and 355/380 all were exact same engines with different downloads. The 427-460 used different turbo, injectors, cam key way and of course different downloads. However there are aftermarket injectors and turbos out there.
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2007 Mack truck showing several fault codes
Mackpro replied to Deland Webb's question in Mack Truck Q & A
MID 136= ABS brake ECM. MID 142= vehicle ECM. MID 128= engine ECM. The numbers that started with a 5 is actually a "S" as in SID. What's truck model? 2007 includes the CXP and CTP with the MP7 pre DPF engine -
As 880joe said , ETECH/pre CCRS engine have the fuel return jumper between heads and also the plastic fuel return line coming off front or back head going to the fuel pressure relief valve on RH side of block. If you can give me the last 6 of the vin I can pull it up and check for sure tomorrow
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We do the same except 1.5 degrees over what it says on the valve cover for pump timing. Farther up north you can get away with 2 degrees. Down here in the super hot summer , 1.5 over is as far as we like to go. It really helps
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Jake pins.pdf
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Page 6 and 7 of this service Bulletin . Any time Im doing a valve adjustment on a ETECH style engine with Jakes, I always pull the actuating pins and inspect and or replace. If they are not the new silver ones I always replace them or if they show any wear. However it would be hard to tell if any of the yoke pins were bent or cracked. We usually have good luck in drilling , tapping and slid hammering the broken pins out. Its been years since we have had any failures like that here. All I see are red motors any more
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I have seen 2016's with the new hood. It has a little dip in the center and they went back to the old CH 3 piece glue together style. Not really that noticeable. You have probably seen several and didn't know it. If you tilt the hood over you will see the dip
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There was some aftermarket vendor making filters for the sleeper units but we were never able to find out who
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Superliner headlight wiring
Mackpro replied to r686st's topic in Electrical, Electronics and Lighting
The 41MR3655/ 25057532 is for the LH side . The 41MR3654/ 25038822 is for the RH side . I looked for any extension harness or notes and there was none. As KScarbel2 said , the dealer needs to call Mack parts specs and they can pull the blueprints and email them to the dealer and you can see actual lengths of harness. -
Superliner headlight wiring
Mackpro replied to r686st's topic in Electrical, Electronics and Lighting
You're lucky that they even had anything close to what you need. We are running into issues with exhaust parts and wiring harnesses on trucks older than 1999 and we're a dealer. We had to make an ABS harness for my buddy's 1999 CL because it's no longer available. IF you need a wiring diagram, go to your dealer and have them go into the Mack Dealer E-media site and order wiring diagram # 8-501. Its $7. -
2004 mack ch fan need help!!
Mackpro replied to ardakota's topic in Electrical, Electronics and Lighting
Behr fan clutch AC engines.pdf -
I believe you have the Behr fan going by the part number. We have little to no problem out of them. This is the Cool Logic that was a total failure . They dont even make them any more. Cool Logic Fan.pdf
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Did it have the giant Borg Warner Cool logic fan clutch on it and you replaced it with the smaller Behr clutch? And does it have an Allison trans
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The MP series engines have the thermostats in the oil filter housing . As fjh said the ASET/ETECH style engine dont.
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