- May 3, 2011 at 12:34 am #25655
I need some help here. Has anybody run into excessive blowby on a 06 cummins ISX, but it only happens some times. The engine runs strong and has good power. Installed a new egr cooler 2 months ago. The truck will do fine for about 7000 mi the have a day or 2 of the blowby issue. Any thoughts or comments would be helpful.June 28, 2011 at 4:25 am #28073
i think this year model has the crankcase filter on the front left side of the engine, they stop up and cause high blow-by. that would be my first check.June 28, 2011 at 4:57 pm #28075
Thanks for the advise, I did change the blowby filter and no change. We ended up finding 3 top rings that were broken. I have never seen a engine with broken rings act this way.July 12, 2011 at 12:21 am #28084
Cool. Did she blow the dipstick outta her?
Ive heard of this happening to CAT engines with either the dipstick or oil cap blowing off…Never to be found lolMarch 21, 2015 at 10:18 am #29344
For everyone who want all details about this engine, I recommend you the repair manual because there you will find anything you want to fix it!
You can download it from here: https://www.tradebit.com/filedetail.php/274369917-cummins-signature-isx-and-qsx15-factory-manual
Will help you a lot !
Best regardsApril 29, 2015 at 7:31 pm #29352
Thank you very much albertwhitez for sharing this! That is the software for Cummins and is perfect for DIY procedures! Bless youJanuary 13, 2020 at 1:09 pm #51645
Hey guys I’m looking for some help on an 06 isx it’s eating about a gallon Of oil every 1,500miles and I also noticed some oil drops exhaust side of the turbo. I do run it hard 650 miles daily with a 35 ton load. I wanna know if that’s too much oil consumptionJanuary 13, 2020 at 1:10 pm #51646
Hey Larry which rings were broken?