How to turn off engine fan on Mack MP8?

How to turn off engine fan on Mack MP8?

Mitchel says to disconnect fan and supply 12v to pin 5 and ground to pin 4 and fan should turn off. but not turning off. vin #1M2AX18C9M004774 My name is ***** ***** I will assist you with your question today.

What kind of engine does a Mack MP8 have?

The MACK MP8 is a 13-liter (800 CID) engine with electronic unit injectors, a cooled Exhaust Gas Recirculation (EGR) system, a Diesel Particulate Filter (DPF) system and the Holset Variable Geometry Turbocharger (VGT). The engine weighs approximately 2560 lb. dry.

Where does the plunger go on a Mack MP8?

The plunger moves up in the injector as the camshaft rotates and the rocker arm is on its way to the camshaft base circle, the fuel valve is open allowing fuel to be drawn in. Filling continues until the pump plunger reaches its upper position. Next the spill phase begins. As the camshaft rotates, the rocker arm pushes the pump plunger down.

How to diagnose 2009 Mack Granite Mack MP8?

2009 mack granite mack mp8. engine… 2009 mack granite mack mp8. engine fan staying on, do you have diagnosing steps and wiring diagram. Mitchel says to disconnect fan and supply 12v to pin 5 and ground to pin 4 and fan should turn off. but not turning off. vin #1M2AX18C9M004774

How does the engine fan on a Mack truck work?

This truck is equipped with an e-viscous fan. The way these fans work is inside there are 2 cavities which internally there is an electronic solenoid that opens up and allows the oil to change chambers to lock and unlock the fan. The fan has to warm up before the fan will release.

What are the pins on a Mack motor?

Pin 1 is speed sensor (+). Pin 2 is speed sensor (-). Pin 3 is fan solenoid clutch engage (-). Pin 4 is main power in to solenoid. Pin 5 is 5vRef for speed sensor. Pin 6 is signal ground for solenoid. So pins 4 and 3 will make fan unlock. Pins 4 and 6 are just there to confirm power is feeding.