Volvo Owners Club Forum - View Single Post

LankyTim · Jul 26th, 2019, 06:18

I've started to run on biodiesel and this has quietened down the noisy injectors quite a bit, my previous D5 had the same issue and over time running on biodiesel the noise slowly vanished.

I've read that the noise is actually pre-ignition caused by a poor spray pattern, the nozzles of the injectors gum up and cause issues. Biodiesel slowly strips the deposits in the diesel system and cleans the injectors. Just a theory of mine! I'll continue running on biodiesel and report back the results.

Jul 26th, 2019, 06:18	#8
LankyTim Missing the point Last Online: Feb 5th, 2023 23:12 Join Date: Nov 2001 Location: Stoke-On-Trent	I've started to run on biodiesel and this has quietened down the noisy injectors quite a bit, my previous D5 had the same issue and over time running on biodiesel the noise slowly vanished. I've read that the noise is actually pre-ignition caused by a poor spray pattern, the nozzles of the injectors gum up and cause issues. Biodiesel slowly strips the deposits in the diesel system and cleans the injectors. Just a theory of mine! I'll continue running on biodiesel and report back the results. __________________ Tim 1968 Volvo 145 long term project. Currently without a Volvo daily driver.