Moparmike Posted May 8, 2018 Share Posted May 8, 2018 Driving the dump truck today out the blue starts to smoke white smoke skipping running rough..tried the codes i get 6/6 fuel control module but if that was the case would the truck run at all..how can I check the injectors..it has the eup injectors as well as the others i guess is a good way to word it.. Quote Link to comment https://www.bigmacktrucks.com/topic/53324-2000-mack-e7-rd688-injector-or-ecm/ Share on other sites More sharing options...
fjh Posted May 8, 2018 Share Posted May 8, 2018 Check your fuel preasure! Quote Link to comment https://www.bigmacktrucks.com/topic/53324-2000-mack-e7-rd688-injector-or-ecm/#findComment-398554 Share on other sites More sharing options...
Moparmike Posted May 9, 2018 Author Share Posted May 9, 2018 Not to sound crazy but could someone tell me how and where to check the pressure this is my first Mack..never really messed with them before..ive put a turbo on it bout a month ago that's it lol..thanks Quote Link to comment https://www.bigmacktrucks.com/topic/53324-2000-mack-e7-rd688-injector-or-ecm/#findComment-398581 Share on other sites More sharing options...
Moparmike Posted May 9, 2018 Author Share Posted May 9, 2018 Ok little update today..mechanic cracked all injection lines all are pumping fuel last 4 cylinder are cold ..towed to his shop going to put a test ecm on see what happens may put manifold and turbo to see really what the cylinders are doing ..hopefully ecm will fix the problem Quote Link to comment https://www.bigmacktrucks.com/topic/53324-2000-mack-e7-rd688-injector-or-ecm/#findComment-398609 Share on other sites More sharing options...
Moparmike Posted May 13, 2018 Author Share Posted May 13, 2018 Update on e7 ..number 1 injector hung wide open ..picked up parts Friday hopefully ready to go monday 1 Quote Link to comment https://www.bigmacktrucks.com/topic/53324-2000-mack-e7-rd688-injector-or-ecm/#findComment-398797 Share on other sites More sharing options...
fjh Posted June 2, 2018 Share Posted June 2, 2018 Bud thanks for keeping us up dated Good find! Quote Link to comment https://www.bigmacktrucks.com/topic/53324-2000-mack-e7-rd688-injector-or-ecm/#findComment-399856 Share on other sites More sharing options...
Moparmike Posted June 2, 2018 Author Share Posted June 2, 2018 8 hours ago, fjh said: Bud thanks for keeping us up dated Good find! Ended up being both injector and eup replaced both runs great now..number 1 cylinder Quote Link to comment https://www.bigmacktrucks.com/topic/53324-2000-mack-e7-rd688-injector-or-ecm/#findComment-399872 Share on other sites More sharing options...
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