Cummins isx knocking noise, It's only at idle, to maybe 100 or 200 rpm above idle. Symptoms: Misfires, rough idling, poor fuel economy, or engine knock. Mar 6, 2015 · Noise in top end of cummins isx Discussion in ' Heavy Duty Diesel Truck Mechanics Forum ' started by lciambotti1, Sep 29, 2019. Mar 28, 2023 · I have a 2012 Peterbilt with an ISX in it that has been previously tuned. Jan 18, 2017 · Isx compressor knock, much better now. Discussion in ' Trucks [ Eighteen Wheelers ] ' started by unapez, Aug 28, 2017. Regular maintenance and timely fixes can prevent costly repairs and extend engine life. Dec 11, 2023 · What are the possible causes of a knocking sound, and what is the best way to determine which one it is? One of my trucks has developed a light knock that sounds alarmingly like rod knock. Cause: The ISX Cummins engine can develop issues with the fuel injectors due to wear, carbon buildup, or contamination of the fuel system. com: Rawze's ISX Technical Discussion and more / Big Truck Technical Discussion / ISX Related Help / Knocking sound Cummins ISX Loud Noise Issue Related to Injector Compression ISX engines may face injector seal leaks and compression loss causing unusual engine noises under load. If I'm driving with any kind of throttle, it Apr 12, 2021 · Cummins Camshaft Issues, ISX Diesel Engine Knocking, Ticking Noises Diagnosis Cummins ISX Camshaft Issues? Learn How to Diagnose and Fix Sep 21, 2024 · In ISX engines, issues with fuel injectors can lead to poor engine performance and increased emissions. I have a Cummins ISX that knock at 1450 -1500 rpm. Complaint was an engine knock at high RPM and under load. Apr 12, 2021 · Cummins Camshaft Issues, ISX Diesel Engine Knocking, Ticking Noises Diagnosis Cummins ISX Camshaft Issues? Learn How to Diagnose and Fix Cummins ISX engines are powerful but may face issues like EGR valve failure, turbocharger problems, fuel injector malfunctions, DPF clogging, camshaft wear, and excessive oil consumption. It May 29, 2015 · Hello everyone, I'm new here on forum and I need your help. Jan 14, 2026 · Rawze. At the last service, they have completely overhauled the engine, replaced one injector, replaced the camshaft on the valve train, clearance checked the timing gears (all within specs) Feb 26, 2017 · ISX 15 Knocks under load Discussion in ' Heavy Duty Diesel Truck Mechanics Forum ' started by Andreybanyuk, Feb 26, 2017. Unplugging the turbo actuator seems to make the noise go away. Hope this helps other with the . Hello, This is a Cummins ISM. It has a knocking noise at 1500 rpms especially under load. Mar 14, 2021 · Cummins x15 knocking noise Discussion in ' Trucks [ Eighteen Wheelers ] ' started by Navigatorpirate, Jul 8, 2023. Found the cause to be a bad injector.


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