spoon Posted December 24, 2013 Share Posted December 24, 2013 Hey guys,I have a 99 DM690s with a em7-300 etec. The truck recently has been become harder to start, hot or cold, and has lost alot of power. It free revs quickly and doesn't have a miss or smoke. We have changed all the filters and checked fuel lines.Blink code 3-2 comes up every once in a while. Also code 5-3Any ideas? Thanks Quote Link to comment https://www.bigmacktrucks.com/topic/34001-99-etec-300-losing-power/ Share on other sites More sharing options...
Challenger Posted December 28, 2013 Share Posted December 28, 2013 3-2 Engine timing sensor This code could cause excessive cranking and low power. There are 2 sensors, engine timing sensor and engine position sensor. One is on the front cover reading the cam (next to the breather), the other one is in the left lower flywheel housing. They are the same sensor but I cant remember which one is timing and which one is position. You probably have a bad sensor. 5-3 Shutdown lamp Is your shutdown light turning on and off when you cycle the key? I could be a bad bulb. Quote Link to comment https://www.bigmacktrucks.com/topic/34001-99-etec-300-losing-power/#findComment-223491 Share on other sites More sharing options...
rickykarenpr Posted December 28, 2013 Share Posted December 28, 2013 verify the engine timing and oxygen sensors Quote Link to comment https://www.bigmacktrucks.com/topic/34001-99-etec-300-losing-power/#findComment-223492 Share on other sites More sharing options...
spoon Posted January 3, 2014 Author Share Posted January 3, 2014 (edited) It was the Flywheel sensor and a bad bulb. Thanks for the help. Now my 2012 MP7 is going into derate mode throwing DEF codes. I will probably send that one to the dealer and bed over when the bill comes. Edited January 3, 2014 by spoon Quote Link to comment https://www.bigmacktrucks.com/topic/34001-99-etec-300-losing-power/#findComment-224704 Share on other sites More sharing options...
Challenger Posted January 4, 2014 Share Posted January 4, 2014 Send the 2012 to the dealer. Quote Link to comment https://www.bigmacktrucks.com/topic/34001-99-etec-300-losing-power/#findComment-224733 Share on other sites More sharing options...
daisyjohn Posted January 6, 2014 Share Posted January 6, 2014 Check spark plug cap connections. Do you have any excessive spray going into the cowling? Can you try another portable tank with different hose and bulb? Did you install the filter in the right direction? One of my had 50 ETEC for 5 years, the only thing he did was change the filter, new hose and bulb every two years, and changed plugs every season and gear oil once a year. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/34001-99-etec-300-losing-power/#findComment-225028 Share on other sites More sharing options...
theakerstwo Posted January 6, 2014 Share Posted January 6, 2014 What did he just say? Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/34001-99-etec-300-losing-power/#findComment-225032 Share on other sites More sharing options...
staxx Posted January 6, 2014 Share Posted January 6, 2014 Thanks Funny!!!! Quote Link to comment https://www.bigmacktrucks.com/topic/34001-99-etec-300-losing-power/#findComment-225038 Share on other sites More sharing options...
j_martell Posted January 7, 2014 Share Posted January 7, 2014 Check spark plug cap connections. Do you have any excessive spray going into the cowling? Can you try another portable tank with different hose and bulb? Did you install the filter in the right direction? One of my had 50 ETEC for 5 years, the only thing he did was change the filter, new hose and bulb every two years, and changed plugs every season and gear oil once a year.???????????? Quote Lack of planning on your part does not constitute an emergency on my part.... Link to comment https://www.bigmacktrucks.com/topic/34001-99-etec-300-losing-power/#findComment-225119 Share on other sites More sharing options...
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