Stoopit Posted December 3, 2009 Share Posted December 3, 2009 (edited) I just rebuilt my dad's 1999 etch. Everything is new accept the eups and they have over 1.5 million on them. They leak and I know I have to get the oring rebuild kit. I want to know if there is a way for me to totally overhaul the eups. For example replacing the plunger, solenoids etc...He's having a power loss issue. The engine light will come on for a split moment, engine looses power and then kicks back in.Any help would be appreciated thanks all. Edited December 3, 2009 by Stoopit Quote Link to comment https://www.bigmacktrucks.com/topic/11649-e7-etech-eup-problem/ Share on other sites More sharing options...
Underdog Posted December 6, 2009 Share Posted December 6, 2009 I just rebuilt my dad's 1999 etch. Everything is new accept the eups and they have over 1.5 million on them. They leak and I know I have to get the oring rebuild kit. I want to know if there is a way for me to totally overhaul the eups. For example replacing the plunger, solenoids etc...He's having a power loss issue. The engine light will come on for a split moment, engine looses power and then kicks back in.Any help would be appreciated thanks all.Try to grab a code next time the fault light comes on. Sounds like it might be the fuel pedal acting up. Quote Link to comment https://www.bigmacktrucks.com/topic/11649-e7-etech-eup-problem/#findComment-44614 Share on other sites More sharing options...
Stoopit Posted December 9, 2009 Author Share Posted December 9, 2009 Try to grab a code next time the fault light comes on. Sounds like it might be the fuel pedal acting up.Thank you for replying underdog. We plugged her in and pulled a crank position sensor code. Ended up changing both the front and rear one. Truck ran beautiful as soon as the codes were cleared but it keeps coming up with the crank sensor code. As soon as it acts up it starts to run like poo again. This leads me to believe that there is a wiring or computer issue. My father is on the road and he should be back in a few days. Going to check it out when hes beck but any suggestions until then would be appreciated. Quote Link to comment https://www.bigmacktrucks.com/topic/11649-e7-etech-eup-problem/#findComment-44900 Share on other sites More sharing options...
fjh Posted December 10, 2009 Share Posted December 10, 2009 Thank you for replying underdog. We plugged her in and pulled a crank position sensor code. Ended up changing both the front and rear one. Truck ran beautiful as soon as the codes were cleared but it keeps coming up with the crank sensor code. As soon as it acts up it starts to run like poo again. This leads me to believe that there is a wiring or computer issue. My father is on the road and he should be back in a few days. Going to check it out when hes beck but any suggestions until then would be appreciated.If you inframed it and did not remove the fly wheel yo may be ust getting a dirty flywheel sensor! Quote Link to comment https://www.bigmacktrucks.com/topic/11649-e7-etech-eup-problem/#findComment-44915 Share on other sites More sharing options...
Stoopit Posted December 11, 2009 Author Share Posted December 11, 2009 If you inframed it and did not remove the fly wheel yo may be ust getting a dirty flywheel sensor!Thanks fjh. I sometimes complicate things...that's the first thing I'm going to check!!! Quote Link to comment https://www.bigmacktrucks.com/topic/11649-e7-etech-eup-problem/#findComment-44995 Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.