In the older low pressure mechanical injection engines a sure sign that the injectors were getting dirty, like a varnish build up, was they would get noiser. Usually would pick up a knock like a rod knock at an idle. Why couldn't dirty/ going bad high pressure injectors do the same? My truck is getting noticably louder as it ages.
1 - 2 of 2 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
A forum community dedicated to Chevrolet and GMC diesel truck owners and enthusiasts. Come join the discussion about duramax engines, performance, builds, modifications, classifieds, troubleshooting, maintenance, and more!