I have a 2009 freightliner 60 series 14l, I have had bad lack the last 4 months, it started with replacing the ECM and replaced engine and injector wiring harness, when I drive the rpm’s drop down to zero and starts bouncing up and down, it does slows the truck to 30pmh, I have to several shops and nothing. Sometimes I can drive for more than 8hrs with no issues and all of a sudden it starts again.
2009 freightliner problems
Discussion in 'Motor Carrier Questions - The Inside Scoop' started by 09freightliner, May 20, 2024.