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PLEASE help me! VNL670 with an ISX CM2350 4.4 MPG! - Printable Version +- Rawze.com: Rawze's ISX Technical Discussion and more (http://rawze.com/forums) +-- Forum: Big Truck Technical Discussion... (/forumdisplay.php?fid=1) +--- Forum: Ask Your question... (/forumdisplay.php?fid=45) +--- Thread: PLEASE help me! VNL670 with an ISX CM2350 4.4 MPG! (/showthread.php?tid=3251) |
RE: PLEASE help me! VNL670 with an ISX CM2350 4.4 MPG! - VNL670 - 07-06-2018 (07-06-2018 )smorgan87 Wrote: That oil coming out an injector would have me real nervous. I might would wanna run a compression test. It was actually an O'ring that goes around the fuel quail (I think that's what they are called). RE: PLEASE help me! VNL670 with an ISX CM2350 4.4 MPG! - ammjay61 - 01-21-2020 So, did this story end up having a happy ending? Were the overhead settings the culprit, did your mileage come up? Sometimes these threads are like books from the library where someone the out the last two or three pages. Hope you ended up deciding what the issue was. RE: PLEASE help me! VNL670 with an ISX CM2350 4.4 MPG! - walterk - 04-13-2025 (06-26-2018 )Rawze Wrote: Just for reference there hammerhead, on a 2350 with egr still active, a couple psi higher than a demandated truck if it is using a lot of egr gas. Continuing on this subject.... i am having a fuel mileage drop from 8.0 mpg to 7.3, albeit over a 3 year period, but I still don't like it. I am following some of the tests recommended and this one caught my eye. "* Has anyone bothered to pressurize the CAC and check it for leaks? -- How about pressurizing the entire engine between the intake filter and the back of the turbo and checking it for leaks as well?" I have a tool to test CAC, but how do you pressurize the engine between the intake air filter and the back turbo? Any clever ways you guys have to make it easy and practical? Plug it up with rags...?Thanks in advance for your help. RE: PLEASE help me! VNL670 with an ISX CM2350 4.4 MPG! - Rawze - 04-13-2025 (04-13-2025 )walterk Wrote: Continuing on this subject.... using block plates or pipe plugs... ref: https://rawze.com/forums/showthread.php?tid=972&pid=8321#pid8321 RE: PLEASE help me! VNL670 with an ISX CM2350 4.4 MPG! - walterk - 04-15-2025 Inflatable pipe plugs! Super cool! Thanks again. EVAP machine a bit pricy though. RE: PLEASE help me! VNL670 with an ISX CM2350 4.4 MPG! - walterk - 04-16-2025 Any way to use that EVAP machine to find air leaks in the truck/trialer air system? I am courious if it would be able to fill all the little air lines with enough smoke to pin point small leaks. Some of the air lines underneth the cab are literally impossible to get to with a soap water and a spryer. Some trailer lines are just as bad. Obiously, that is only if the smoke is harmless to all the internal componetnts. Thanks for any info on that. RE: PLEASE help me! VNL670 with an ISX CM2350 4.4 MPG! - mikkhh - 04-17-2025 How good would be to test using AC leak finder sniffer that uses 95% nitrogen and 5% hydrogen gas mix? Leak sniffer is lile 300 + gas mix and bottle. So I think around 500 would cost the kit. Is it worth considering or trying? RE: PLEASE help me! VNL670 with an ISX CM2350 4.4 MPG! - Rawze - 04-17-2025 Soapy water while the system is pressurized is your friend with regard to air lines. |