Mackpro
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Everything posted by Mackpro
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The max HP rating for a export MP8 with no EGR is 440. I’ve seen 3 major engine failures on low mileage deleted MP8s . One I know was a 505 , the other 2 I’m unsure on HP. I would feel better if the EGR was not deleted but the DPF/SCR was
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Volvo has had the injector cup problem in the D12 and their other engines before the D11,13,16 and MP7,8 and 10 came out. Back in 2008 I went to a Mack engine class on the then new MP engines. In the class there were also techs from some Volvo dealerships. The instructor kept going over injector cup installations. After 4 + hours on injector cups , I asked what’s the big deal with the injector cups, the Volvo techs laughed and said I needed to pay attention because I would be using my new knowledge and they were not kidding.
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I believe there are a few service bulletins on the LR climate systems. I’ll message you for details
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It’s the piston cooling oil pressure sensor. Same part number as the oil pressure sensor on the other side of the engine.
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If your hitting 33 psi of boost then it’s probably not a derate issue due to emissions emissions. Good running MP engines run 33 to almost 40 psi boost. I’ll message for more info.
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Day time light module location Mack 2016 gu713
Mackpro replied to John Fulghum's question in Mack Truck Q & A
The early MP equipped conventional truck had a right and left low beam relay. They later did away with them . They are located in the fuse panel by the clutch pedal. They are locate on the bottom far right. They are the small relays one above another. Position R11 and R12 on the fuse panel. There was a recall on the fuse panel for possible water damage -
Day time light module location Mack 2016 gu713
Mackpro replied to John Fulghum's question in Mack Truck Q & A
On top of the dash , take the 3 screws out of the triangle shaped fuse panel cover . To the left of the fuse panel there and a cluster of relays and also the flasher. The DRL is usually the tallest of the square relays -
If you u plug the turn signal switch does the lights go out? I believe the trolly valve uses the same pressure switch as the foot valve ( by clutch pedal)
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T1 need to be twice that before it will start dosing fuel
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08 mack mp8 low oil pressure shut off at highway speed
Mackpro replied to Zackmcc's question in Mack Truck Q & A
Mack went through 3 or 4 part numbers/ suppliers of the oil pressure sensors. Mack sent out a bulletin warning that some counterfeit sensors even made it into the parts system. It’s possible you got a bad one -
Last I checked, there is no stock at the Mack warehouses and doubt they will be made anymore. Message me your email and I can get you the bulletin. I think it has the earring diagram showing how’s its wired up
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Did your T-1 temp every get hot enough to alolow the 7th injector yo start dosing fuel?
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A 1994 350 VMAC takes 313GC5205P1 injectors. A non VMAC 350 takes 313GC5188P12 injectors
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A 1994 non VMAC EM7 300 takes 313GC5188P10 injectors. The reman number is same but add a X at the end
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Is it V-mac or non-V-mac? On the 300 is ask for e-7 300, em7-300 and e7-300 v-Mac and all 3 use different part numbers
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If a CXP you can press and hold the button under the dash display and it will reAd out the MID codes
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If air fan clutch. You should have 12 volts going to the fan clutch solenoid straight from the fuse box. The other wire ( ground) goes to the engine ecm. The engine ecm makes the ground internally to disengage the fan clutch. When the engine ecm sees hight coolant temp , high AC head pressure or high intake temp it opens the circuit ( takes away the ground ) and the fan clutch engages.
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What kind of fan clutch ? Air or electric?
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I know they come with 10/30 in them but unsure of the brand . At one time it was Delo 400.
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The fuel supply pump is mounted to the power steering pump then the power steering pump is bolted to the timing gear housing. If it leaks fuel out of the weep hole where the two bolt together then I would replace the complete unit. They call it a “tandem pump” . There is a service bulletin on replacing the complete unit versus just the fuel pump due to an alignment problem that could occur causing the fuel pump to go out again.
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Only the top O-ring on the Mp injectors is used . There is a mark on the fly wheel for top dead center . You can also look in the front of the camshaft. It has a TDC mark on it too.
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We have tried putting o-ring kits in the CCV blow by filter spinner thing . But they usually still leaks oil so we now replac the complete unit. It kinda high dollar I believe, around a grand I think.
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Help decodeing Vin # 1M2P289C7XM029160 1999RD Specs
Mackpro replied to Jomorisn's question in Mack Truck Q & A
It’s a ETECH E-7 300hp with a T2060 Mack 6 speed trans. Buil 1/21/1999. Mack rears with 5.02 gears. 44k rear camelbacks and showing a 14.3K front axle -
This truck has the first generation ETECH engine and is a 355/380 Hp with 1560 foot pounds of torque. Eaton rears with4.11 gears. And the smaller fuller 10 speed trans. Built on 6/7/2000. The Mack warranty data base purged all the old warranty records on this truck and pretty much all Mack’s with a grey motor. I would be shocked if it has the original camshaft in it .
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Last year I still saw new MRU’s with manual transmissions. Theses were all concrete pumpers . I believe it’s due to the driveshaft driven concrete pump used to pump the concrete up the boom piping. A small local county refuse service here still orders a new a MRU every 4 years and they are always Mack’s manual transmissions.
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