felicello122 Posted January 17, 2013 Share Posted January 17, 2013 Hi guys 2000 mackRD, E-TECH 400, starts runs to full throttle, then it will shut off like you turned off the key. Does not miss or stutter. Red shutdown light remains on the whole time. when you first crank it up it remains lit until oil pressure builds blinks once then comes back on and stays on even after it shuts off until i reset the key. Sometimes it runs fine, this just started to do this yesterday. I checked the inside plugs on the ECU near the heater and yes it is turned downwards. the plugs on the outside are all clean and i started to check my grounds. The low coolant sensor harness is dry. Haven't checked throttle control yet and timing sensors are fairly new.Primary fuel pump is about a year old. I did notice some issues with the wabco anti-lock harness,is this thing wired to the ECU? THE mal function light did not come on at all. I will check bulb in the morning. Any help will be great, thanks. Quote Link to comment https://www.bigmacktrucks.com/topic/29458-shutdown-light-on/ Share on other sites More sharing options...
refusegetter Posted January 17, 2013 Share Posted January 17, 2013 Low coolant sensor is dry? Should be wet, no? Quote Link to comment https://www.bigmacktrucks.com/topic/29458-shutdown-light-on/#findComment-157889 Share on other sites More sharing options...
felicello122 Posted January 17, 2013 Author Share Posted January 17, 2013 I meant the inside of the harness Quote Link to comment https://www.bigmacktrucks.com/topic/29458-shutdown-light-on/#findComment-157891 Share on other sites More sharing options...
felicello122 Posted January 17, 2013 Author Share Posted January 17, 2013 Low coolant sensor is dry? Should be wet, no?the plug and harness is what i meant. Quote Link to comment https://www.bigmacktrucks.com/topic/29458-shutdown-light-on/#findComment-157894 Share on other sites More sharing options...
refusegetter Posted January 17, 2013 Share Posted January 17, 2013 I see you did say harness sorry. It's telling you to shut down to prevent damage so I'd stick with the oil and coolant . If it runs fine sometimes it sounds like your on the same track I'd take chasing down wires. Good luck. Quote Link to comment https://www.bigmacktrucks.com/topic/29458-shutdown-light-on/#findComment-157896 Share on other sites More sharing options...
felicello122 Posted January 17, 2013 Author Share Posted January 17, 2013 I see you did say harness sorry. It's telling you to shut down to prevent damage so I'd stick with the oil and coolant . If it runs fine sometimes it sounds like your on the same track I'd take chasing down wires. Good luck.thanks any way. Quote Link to comment https://www.bigmacktrucks.com/topic/29458-shutdown-light-on/#findComment-157921 Share on other sites More sharing options...
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