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Engine Shutdown/electronic Malfuntion Lights

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Quick question about the engine shutdown/electonic malfuntion light...what else would trigger it besides low coolant? The other night it was coming on on me every now and then. All the fluids are fine and there was no shutdown and/or power loss. Truck is a 97 CH.

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The only time both lights come on is for low coolant, (except for 2008 and up DPF equipped Macks). Could be a coolant sensor wire shorted in the harness on the engine.

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Quick question about the engine shutdown/electonic malfuntion light...what else would trigger it besides low coolant? The other night it was coming on on me every now and then. All the fluids are fine and there was no shutdown and/or power loss. Truck is a 97 CH.

Oil preasure / coolant overheat and low coolant set the lights off on a 97!If you have the inactive codes check that will tell the tail.

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Drover

G/day mate,

I have a 95 model that is shuting down aswell, did you solve the problem? as it has me stumped.

Quick question about the engine shutdown/electonic malfuntion light...what else would trigger it besides low coolant? The other night it was coming on on me every now and then. All the fluids are fine and there was no shutdown and/or power loss. Truck is a 97 CH.

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Drover

G/day mate,

I have a 95 model that is shuting down aswell, did you solve the problem? as it has me stumped.

Quick question about the engine shutdown/electonic malfuntion light...what else would trigger it besides low coolant? The other night it was coming on on me every now and then. All the fluids are fine and there was no shutdown and/or power loss. Truck is a 97 CH.

If your unit is shutting down on low coolant high water temp or low oil psi both lights will light eml and the shut down light.

Bad sensor on any of three sensors or a bad wire.We set all of our customer engine to NOT shut down on low coolant. its easier that way only two choices.

Both of which will show on gauges.

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G/day drover,my vision mack 3007 model always show engine short whenever the engine is hot and it drives fine before engine heat up.oil pump well, no water leakage. Pls help me out am getting frustrated. Regards

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97 mack ch600 or 613 I guess. Shuts down when I stop. Shutdown light comes on and the truck dies but only when I slow to a stop. Runs fine til I come to a stop.  It dies but starts right back and away I go. Help please

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You can check the code. With your cruise control switch OFF, press the set button and the electronic malfunction light will blink the code. So let's say it's code 4-1, the light will blink 4 times, pause a second or two, and blink 1 time, then go back to constant. If there is more than one code, press the bottom again, and the next code will blink. Keep doing that until you get back to the first blink code. Google Mack E7 codes for the code list 

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I'm getting a 1-4 code..can anyone tell me where to find the ambient air temp sensor on an 03 ch612

Thanks

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Your near a transition year......that one I think it was up by the bottom of the radiator taking first grab at draft air before radiator got to it. 

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My 99 CH is about the middle of rear head on left side on the intake manifold

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