dgk1 Posted May 10, 2019 Share Posted May 10, 2019 I have a 2009 cxu with mp8. I just had egr and dpf deleted. My water temperature is running hotter than normally would. Any ideas as to why? 1 Quote Link to comment https://www.bigmacktrucks.com/topic/57150-mp8-egr-dpf-delete/ Share on other sites More sharing options...
fjh Posted May 11, 2019 Share Posted May 11, 2019 The engine is designed to have exhaust gas in the cyl this cools the burn! You have now removed that and if the tune wasn't compensated for this it Is going to run hotter with clean air going into the cyl ! just sayin! Quote Link to comment https://www.bigmacktrucks.com/topic/57150-mp8-egr-dpf-delete/#findComment-422438 Share on other sites More sharing options...
dgk1 Posted May 11, 2019 Author Share Posted May 11, 2019 So how would I fix that, what has to changed in the tune? Thanks for the reply. Quote Link to comment https://www.bigmacktrucks.com/topic/57150-mp8-egr-dpf-delete/#findComment-422440 Share on other sites More sharing options...
fjh Posted May 11, 2019 Share Posted May 11, 2019 who did your delete you need to consult them Quote Link to comment https://www.bigmacktrucks.com/topic/57150-mp8-egr-dpf-delete/#findComment-422463 Share on other sites More sharing options...
dgk1 Posted May 11, 2019 Author Share Posted May 11, 2019 Akzo diesel, they're saying the water temp isn't affected by the tune since it's not throwing any codes. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/57150-mp8-egr-dpf-delete/#findComment-422474 Share on other sites More sharing options...
fjh Posted May 12, 2019 Share Posted May 12, 2019 May have been a coincidence! who knows maybe Try a stat! Log as the temp is in the safe range should be ok! one thing for sure getting dealer help is out for ya now! Quote Link to comment https://www.bigmacktrucks.com/topic/57150-mp8-egr-dpf-delete/#findComment-422568 Share on other sites More sharing options...
Mack Technician Posted May 12, 2019 Share Posted May 12, 2019 (edited) “When Truck reliability is outlawed l’ll become an outlaw” ~ Plight of the modern Owner Operator Edited May 12, 2019 by Mack Technician Quote Link to comment https://www.bigmacktrucks.com/topic/57150-mp8-egr-dpf-delete/#findComment-422579 Share on other sites More sharing options...
Mackpro Posted May 13, 2019 Share Posted May 13, 2019 The max HP rating for a export MP8 with no EGR is 440. I’ve seen 3 major engine failures on low mileage deleted MP8s . One I know was a 505 , the other 2 I’m unsure on HP. I would feel better if the EGR was not deleted but the DPF/SCR was 1 Quote Link to comment https://www.bigmacktrucks.com/topic/57150-mp8-egr-dpf-delete/#findComment-422628 Share on other sites More sharing options...
Dirtymilkman Posted May 13, 2019 Share Posted May 13, 2019 1 hour ago, Mackpro said: The max HP rating for a export MP8 with no EGR is 440. I’ve seen 3 major engine failures on low mileage deleted MP8s . One I know was a 505 , the other 2 I’m unsure on HP. I would feel better if the EGR was not deleted but the DPF/SCR was Why would no egr affect the motor? Wouldn't it be better for the engine to be deleted? Quote Link to comment https://www.bigmacktrucks.com/topic/57150-mp8-egr-dpf-delete/#findComment-422642 Share on other sites More sharing options...
fjh Posted May 13, 2019 Share Posted May 13, 2019 10 hours ago, Dirtymilkman said: Why would no egr affect the motor? Wouldn't it be better for the engine to be deleted? Milkman! If I under stand it correctly ! with no egr if the fuel/and timing are not dialed back properly the heat in the cyls exceeds what the engine can tolerate ! It can burn up pistons crack heads bla bla bla ! recently I have seen several ISX engines heads cracked and ruined due to this delete And no alteration of the ecu! One needs to research who you are dealing with when doing a delete! We have guys that have successfully deleted here but the tune was altered to suit!This is all well and good till big bro starts enforcing the emission laws then were going to have issues! Also The down side is you now have no dealer support when it come to repair! your on your own ! Just Sayin! However you have the advantage of less break down due to emission related issues!And that CAN be A big Bonus if you don't get thrown under the the bus wheels!😉 Quote Link to comment https://www.bigmacktrucks.com/topic/57150-mp8-egr-dpf-delete/#findComment-422660 Share on other sites More sharing options...
Maxidyne Posted May 13, 2019 Share Posted May 13, 2019 I've been hearing of deleted Volvo engines having the same problems. Seems a lot of the hackers modifying the software to delete emissions are mucking about with code they really don't understand and making things worse. Quote Link to comment https://www.bigmacktrucks.com/topic/57150-mp8-egr-dpf-delete/#findComment-422670 Share on other sites More sharing options...
Mackpro Posted May 13, 2019 Share Posted May 13, 2019 We saw burned valves , cracked liners and cracked head. To much fuel and clean air and they burn pretty hot. Quote Link to comment https://www.bigmacktrucks.com/topic/57150-mp8-egr-dpf-delete/#findComment-422674 Share on other sites More sharing options...
tbone1983 Posted June 10, 2019 Share Posted June 10, 2019 When doing the tune sometimes the type of fan gets changed in the programming. There are 3 types. Viscous, air, and electro- viscous. What type do you have? If the computer is programmed wrong it will not turn the fan on. Does your fan work? Quote Link to comment https://www.bigmacktrucks.com/topic/57150-mp8-egr-dpf-delete/#findComment-424974 Share on other sites More sharing options...
mp8_macky Posted July 13, 2019 Share Posted July 13, 2019 I did quite a few of those, and never had a single issue. The guy that does them for me, states in his instructions that you should verify that engine fan is working after the delete. Also I remember that he told me that there is a parameter on which temp. fan kicks in, you can change that in ECM. Check out https://truckecmtunes.com Quote Link to comment https://www.bigmacktrucks.com/topic/57150-mp8-egr-dpf-delete/#findComment-427662 Share on other sites More sharing options...
dgk1 Posted July 23, 2019 Author Share Posted July 23, 2019 Did you block off the egr valve and should it be blocked off on intake side as well? Quote Link to comment https://www.bigmacktrucks.com/topic/57150-mp8-egr-dpf-delete/#findComment-428526 Share on other sites More sharing options...
mp8_macky Posted August 18, 2019 Share Posted August 18, 2019 yes i did block off egr. it must be blocked on intake side too the tuner requested that Quote Link to comment https://www.bigmacktrucks.com/topic/57150-mp8-egr-dpf-delete/#findComment-430339 Share on other sites More sharing options...
ata Posted July 19, 2020 Share Posted July 19, 2020 I had my 2013 deleted 2 months ago they said they did not block off egr but now have oil going out exhaust -any one have suggestion Quote Link to comment https://www.bigmacktrucks.com/topic/57150-mp8-egr-dpf-delete/#findComment-456152 Share on other sites More sharing options...
mp8_macky Posted November 26, 2020 Share Posted November 26, 2020 i did warn people that not every delete is the same, and there are a lot of bad deletes. the egr must be blocked off with 2 steel plates, if you don't do that you will still get exhaust into your intake, and soot will build up, vgt will get sticky and fail a lot sooner. bad delete companies usually say that you dont have to block the egr off, some even say you can leave filters on - that's crazy. stick with a good supplier of delete program! as i said for million times here on the forum, i personally use and i forwarded at least a half a dozen of forum members to https://truckecmtunes.com everyone is very happy, and i run my first delete 5-6 years already with no issues. Quote Link to comment https://www.bigmacktrucks.com/topic/57150-mp8-egr-dpf-delete/#findComment-464417 Share on other sites More sharing options...
fjh Posted November 28, 2020 Share Posted November 28, 2020 (edited) So you claim two plates are needed ??? do you put one plate under the EGR valve ? And so where do you put the second plate?? once you cap the exhaust under the egr valve there should be no flow to the intake manifold! no flow thru the egr cooler or venturie tube back or forth! just asking curious! Edited November 28, 2020 by fjh 1 Quote Link to comment https://www.bigmacktrucks.com/topic/57150-mp8-egr-dpf-delete/#findComment-464533 Share on other sites More sharing options...
Roger LaFleche Posted December 29, 2020 Share Posted December 29, 2020 Hi. new to the form. 2015 CXU 613 MP8 505 automatic. 507000 miles. EGR cooler and elbow has lots of soot. Two weeks ago had the DEF system cleaned and all filters replaced. Canister was sent out to be cleaned. When they ( dealer ) put it back together they said it was like new. $4004.00. Now I have to replace the EGR cooler. $5700.00. How do I avoid this from recurring? Quote Link to comment https://www.bigmacktrucks.com/topic/57150-mp8-egr-dpf-delete/#findComment-466293 Share on other sites More sharing options...
Dirtymilkman Posted January 3, 2021 Share Posted January 3, 2021 Get a delete tune done. I am amazed by these engines on how clean they burn when deleted. Rumor has it, a deleted mp10 is basically smoke free and no more plugged egr's, dpf's or scr trouble. Quote Link to comment https://www.bigmacktrucks.com/topic/57150-mp8-egr-dpf-delete/#findComment-466517 Share on other sites More sharing options...
Vmac3 Posted January 4, 2021 Share Posted January 4, 2021 On 11/28/2020 at 4:13 PM, fjh said: So you claim two plates are needed ??? do you put one plate under the EGR valve ? And so where do you put the second plate?? once you cap the exhaust under the egr valve there should be no flow to the intake manifold! no flow thru the egr cooler or venturie tube back or forth! just asking curious! I was thinking about this, and the only thing that I could come up with is the amount of time that the turbocharger would need to pressurize the intake. If the egr cross over tubes is not blocked off (blocking it off at the mixing chamber) then more time would be required to pressurize the intake. But that would be it. V Quote Link to comment https://www.bigmacktrucks.com/topic/57150-mp8-egr-dpf-delete/#findComment-466535 Share on other sites More sharing options...
Bullheaded Posted January 4, 2021 Share Posted January 4, 2021 (edited) I hate these new emission motors too. So much so they caused me to retire from trucking. But I gotta say, there are a lot of deleted ISX Cummins and MP10 Mack's around here, deleted by one of the biggest know delete companies that advertises in all the truck books and papers.......and just about every one of them has blown up. Same with one of the big mines up north. Have a fleet of Star 6900XD's with DD16 600's. They deleted them after all the down time in the severe cold and winter storms they operate in. Then every single one of them blew up. They spent over $300,000 putting SCR and DPF's back on. Edited January 4, 2021 by Bullheaded Spelling Quote Link to comment https://www.bigmacktrucks.com/topic/57150-mp8-egr-dpf-delete/#findComment-466536 Share on other sites More sharing options...
NCMP8RIDER Posted January 5, 2021 Share Posted January 5, 2021 I have a 14 Mack MP8 and have been looking at the MP8 square obd diag plug and been told by numerous companies not to delete egr due to failures. I don't know which avenue to travel on though, an online version or emulator for def dpf since egr must stay on. Anyone have experience with the emulator. Quote Link to comment https://www.bigmacktrucks.com/topic/57150-mp8-egr-dpf-delete/#findComment-466606 Share on other sites More sharing options...
Dirtymilkman Posted January 6, 2021 Share Posted January 6, 2021 Keep your egr. Everything else can go. You'll be happy. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/57150-mp8-egr-dpf-delete/#findComment-466617 Share on other sites More sharing options...
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