Ox50 Posted January 22, 2022 Share Posted January 22, 2022 I’m having issues with my 2010 gu713 I’m thinking it’s injectors and cups but not completely sure just trying to get some insight Quote Link to comment https://www.bigmacktrucks.com/topic/69100-mp8-help/ Share on other sites More sharing options...
0 JoeH Posted January 22, 2022 Share Posted January 22, 2022 Well we don't know what your symptoms are so..... More info please 1 Quote Link to comment https://www.bigmacktrucks.com/topic/69100-mp8-help/#findComment-487696 Share on other sites More sharing options...
0 Onyx610 Posted January 23, 2022 Share Posted January 23, 2022 Yea if you want info you need to give info. The more the better…. Quote Link to comment https://www.bigmacktrucks.com/topic/69100-mp8-help/#findComment-487723 Share on other sites More sharing options...
0 Ox50 Posted January 23, 2022 Author Share Posted January 23, 2022 I wouldn’t consider it hard starts just no power I uploaded some pics of the injector rates from earlier today the truck is deleted when I first bought it it ran great the first few days auctually a little better then my isx 565 but shortly after it started running really sluggish in the mornings after a couple loads it would start to run better through out the day but still not what it should have been I know I’m not getting straight to the point just trying to give more details what I have been going through since I have owned it sometimes the trucks runs good builds boost through a few gears then it just falls on its face Quote Link to comment https://www.bigmacktrucks.com/topic/69100-mp8-help/#findComment-487729 Share on other sites More sharing options...
0 JoeH Posted January 23, 2022 Share Posted January 23, 2022 That is a good looking truck though.... Quote Link to comment https://www.bigmacktrucks.com/topic/69100-mp8-help/#findComment-487730 Share on other sites More sharing options...
0 Onyx610 Posted January 23, 2022 Share Posted January 23, 2022 I wonder if the vgt actuator/turbo is going out. I believe there is a test for that. Quote Link to comment https://www.bigmacktrucks.com/topic/69100-mp8-help/#findComment-487732 Share on other sites More sharing options...
0 Joey Mack Posted January 23, 2022 Share Posted January 23, 2022 that screen looks like Premium Tech Tool... there are calibration tasks in the program, I dont know about deletes, but do you still have a DEF system? or is this an '09 before DEF? to calibrate the VGT. you have to remove the accuator and run a calibration then install it to the turbo... (B.S.) there is also a gauge to check/set the 1/4 gear into position.. jojo 1 Quote Link to comment https://www.bigmacktrucks.com/topic/69100-mp8-help/#findComment-487734 Share on other sites More sharing options...
0 Ox50 Posted January 23, 2022 Author Share Posted January 23, 2022 Vgt turbo actuator is good according to the test I done on premium tech tool auctually took it and recalibrated just to give it a shot 2 Quote Link to comment https://www.bigmacktrucks.com/topic/69100-mp8-help/#findComment-487735 Share on other sites More sharing options...
0 Joey Mack Posted January 23, 2022 Share Posted January 23, 2022 you reckon.... programming is the issue? do you need a 'file' that supports the delete? I really don't know what the 'f' i'm asking here but it seem's to make sense.. jojo Quote Link to comment https://www.bigmacktrucks.com/topic/69100-mp8-help/#findComment-487736 Share on other sites More sharing options...
0 Onyx610 Posted January 23, 2022 Share Posted January 23, 2022 That test doesn’t look bad Quote Link to comment https://www.bigmacktrucks.com/topic/69100-mp8-help/#findComment-487737 Share on other sites More sharing options...
0 Ox50 Posted January 23, 2022 Author Share Posted January 23, 2022 Yes this truck was equipped with def but that had been deleted Quote Link to comment https://www.bigmacktrucks.com/topic/69100-mp8-help/#findComment-487738 Share on other sites More sharing options...
0 Joey Mack Posted January 23, 2022 Share Posted January 23, 2022 ok... well to be honest, I know nothing about deletes other than they breed future problems.. with respect, I am backing out of this post... good luck sir, Jojo 1 Quote Link to comment https://www.bigmacktrucks.com/topic/69100-mp8-help/#findComment-487739 Share on other sites More sharing options...
0 Ox50 Posted January 23, 2022 Author Share Posted January 23, 2022 Yeah I had the delete done when I first got it it just currently went to crap but yeah there is a delete file flashed to the ecm Quote Link to comment https://www.bigmacktrucks.com/topic/69100-mp8-help/#findComment-487740 Share on other sites More sharing options...
0 Onyx610 Posted January 23, 2022 Share Posted January 23, 2022 Yea believe or not these deletes cause nothing but headaches. Way to much unknown here. FJH, MackPro, VMac3 and a few others might be able to help you out. Quote Link to comment https://www.bigmacktrucks.com/topic/69100-mp8-help/#findComment-487741 Share on other sites More sharing options...
0 Onyx610 Posted January 23, 2022 Share Posted January 23, 2022 What do these trucks sound like deleted? I’d love to hear one… Quote Link to comment https://www.bigmacktrucks.com/topic/69100-mp8-help/#findComment-487742 Share on other sites More sharing options...
0 Ox50 Posted January 23, 2022 Author Share Posted January 23, 2022 Not much of a difference in sound when the truck runs right my isx can’t hold a light to it we haul big weights in steep terrain the Jake brake is unbelievable on this thing Quote Link to comment https://www.bigmacktrucks.com/topic/69100-mp8-help/#findComment-487744 Share on other sites More sharing options...
0 Joey Mack Posted January 23, 2022 Share Posted January 23, 2022 I know I just said I was out.... I was wondering if the after treatment ECU is trying to read the 2 differential pressure systems? EGR/DPF? How do you 'lie' to them so they think they are doing a good job? jojo Quote Link to comment https://www.bigmacktrucks.com/topic/69100-mp8-help/#findComment-487745 Share on other sites More sharing options...
0 Onyx610 Posted January 23, 2022 Share Posted January 23, 2022 What kind of trans is in it? Quote Link to comment https://www.bigmacktrucks.com/topic/69100-mp8-help/#findComment-487750 Share on other sites More sharing options...
0 Ox50 Posted January 23, 2022 Author Share Posted January 23, 2022 Honestly idk the I just bought the tube had it installed it done great for awhile really not thinking it’s a tune issue there’s something else going on I just haven’t found it I’m leaning towards injectors and cups Quote Link to comment https://www.bigmacktrucks.com/topic/69100-mp8-help/#findComment-487751 Share on other sites More sharing options...
0 Ox50 Posted January 23, 2022 Author Share Posted January 23, 2022 Eaton fuller 18spd Quote Link to comment https://www.bigmacktrucks.com/topic/69100-mp8-help/#findComment-487752 Share on other sites More sharing options...
0 Onyx610 Posted January 23, 2022 Share Posted January 23, 2022 You can get yourself a clear line and hook into the return and check for bubbles. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/69100-mp8-help/#findComment-487753 Share on other sites More sharing options...
0 Onyx610 Posted January 23, 2022 Share Posted January 23, 2022 Also if it’s cups you would pry notice it getting worse loaded and pulling hills. Anytime the cylinder pressures get higher. Quote Link to comment https://www.bigmacktrucks.com/topic/69100-mp8-help/#findComment-487754 Share on other sites More sharing options...
0 Ox50 Posted January 23, 2022 Author Share Posted January 23, 2022 It has gotten worse overtime seems like when you first pull out in the truck it will run good then it just stumbles won’t build rpms or boost kinda like it’s not getting fuel just not having the hard starts like every one says they have when it’s the cups I’m just trying to get more info before I spend the money on it Quote Link to comment https://www.bigmacktrucks.com/topic/69100-mp8-help/#findComment-487755 Share on other sites More sharing options...
0 Joey Mack Posted January 23, 2022 Share Posted January 23, 2022 are you having issues with building good air pressure in the tanks and maintaining the pressure? Quote Link to comment https://www.bigmacktrucks.com/topic/69100-mp8-help/#findComment-487756 Share on other sites More sharing options...
0 Onyx610 Posted January 23, 2022 Share Posted January 23, 2022 It doesn’t always come with extended crank times. A lot of times they do but not all the time. I would suggest looking for air bubbles in the return. Then report back. Quote Link to comment https://www.bigmacktrucks.com/topic/69100-mp8-help/#findComment-487757 Share on other sites More sharing options...
0 Joey Mack Posted January 23, 2022 Share Posted January 23, 2022 I forgot to ask about power steering performance in my last question..jojo Quote Link to comment https://www.bigmacktrucks.com/topic/69100-mp8-help/#findComment-487758 Share on other sites More sharing options...
Question
Ox50
I’m having issues with my 2010 gu713 I’m thinking it’s injectors and cups but not completely sure just trying to get some insight
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