Been in diesels for over 20 years starting with a lovely '71 220D with crank windows and 4 speed manual.. I'm trying to get some diagnostics info on running problem with my newly purchased '91 300D 2.5 Turbo. The car has 122k and runs great except for Hesitation around 60MPG when I let off the diesel pedal and cruise. Feels like engine miss. Power loss.. If I excellerate even slightly, it goes away. I've changed the inline and canister fuel filters. Local Guru thought it might be clutch chatter. On his suggestion, I added some snake oil to synthetic fluid that's supposed to cure chatter, checked for correct fluid level . No effect. Vacuum seems good.
Car has sat for period of her life. Is there a clogged filter screen that needs cleaning?
This is getting in the way of me and Father- in- law enjoying a great ride. Thanks for any help.
Jeff
jkarg300@yahoo.com