Ezee Posted December 27, 2018 Share Posted December 27, 2018 1999 mack e7 460 slight skip but still have good power. Could it be weak eup or injector nozzle? Quote Link to comment Share on other sites More sharing options...
0 41chevy Posted December 27, 2018 Share Posted December 27, 2018 What do you mean by skip? A miss or a lag or? Quote "OPERTUNITY IS MISSED BY MOST PEOPLE BECAUSE IT IS DRESSED IN OVERALLS AND LOOKS LIKE WORK" Thomas Edison “Life’s journey is not to arrive at the grave safely, in a well preserved body, but rather to skid in sideways, totally worn out, shouting ‘Holy shit, what a ride!’” P.T.CHESHIRE Link to comment Share on other sites More sharing options...
0 Ezee Posted December 28, 2018 Author Share Posted December 28, 2018 A slight miss Quote Link to comment Share on other sites More sharing options...
0 41chevy Posted December 28, 2018 Share Posted December 28, 2018 Could be a weak injector. Quote "OPERTUNITY IS MISSED BY MOST PEOPLE BECAUSE IT IS DRESSED IN OVERALLS AND LOOKS LIKE WORK" Thomas Edison “Life’s journey is not to arrive at the grave safely, in a well preserved body, but rather to skid in sideways, totally worn out, shouting ‘Holy shit, what a ride!’” P.T.CHESHIRE Link to comment Share on other sites More sharing options...
0 Ezee Posted December 28, 2018 Author Share Posted December 28, 2018 You mean the EUP or is there other Injectors than the injector nozzles? Quote Link to comment Share on other sites More sharing options...
0 JoeH Posted December 29, 2018 Share Posted December 29, 2018 Someone else might chime in, with a computer you should be able to individually shut down one EUP at a time to find which injector nozzle/eup might be faulty. I've never had a need to hook one up to a computer but the book says you can. See if your local non Mack Dealer shop can accommodate you on doing that. One truck I just looked at for potential buy had a miss when I cold started it, but once the truck warmed up I shut it off/restarted and the miss went away. 1 Quote Link to comment Share on other sites More sharing options...
0 41chevy Posted December 29, 2018 Share Posted December 29, 2018 Exactly. Quote "OPERTUNITY IS MISSED BY MOST PEOPLE BECAUSE IT IS DRESSED IN OVERALLS AND LOOKS LIKE WORK" Thomas Edison “Life’s journey is not to arrive at the grave safely, in a well preserved body, but rather to skid in sideways, totally worn out, shouting ‘Holy shit, what a ride!’” P.T.CHESHIRE Link to comment Share on other sites More sharing options...
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Ezee
1999 mack e7 460 slight skip but still have good power. Could it be weak eup or injector nozzle?
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