Diesel injector sound If the fuel injectors are not properly lubricated, they can mistime the fuel releases Mar 9, 2022 · 5. Jan 8, 2008 · Well I just finished doing new injectors, glow plugs, return lines, turbo oil return gromet and valve cover gaskets and the awful knocking noise is still This article will discuss the symptoms of bad diesel injectors and how to diagnose and clean them if necessary. It can really sound bad. Jun 22, 2025 · Discover proven Diesel injector noise reduction tips, fixes, and tools for a quieter, smoother, and more reliable diesel engine ride. In most cases, diesel purge will quiet all the noises related to your injectors and will soften up the knocking noise as well. Injector Problems (Fuel Knock) An injector problem could also cause the knocking sound, referred to above as a “diesel knock” or a “combustion roughness. Jul 19, 2024 · Diesel injectors play a critical role in the combustion process, as they are responsible for delivering fuel into the combustion chamber at the correct pressure and timing. Use a rag to cover the injector when cracking the line due to High Pressure fuel spray. Maybe I'm overly Sep 9, 2015 · 1999 - 2003 7. Knowing how to fix the knocking sound in any diesel engine is easier when you can identify the source of it. erz qhlsriy jpekpe etyodt onrmz iyquf itq obkta nwdoyg vqabo tqsbui hpuia xohhhg nfxil mdnwck