My 1983 Mercedes 240D was running great. We had just replaced all of the glow plugs and the battery is strong. However, I started to notice that at the "top" of each gear, the engine seemed to "wane" in power.
One night, I was driving on the freeway at 70 mph and the engine just gradually started to lose power and eventually shut off. I coasted to the berm.
The engine turns over, the glow plugs light and everything seems pretty normal. The engine seemed like it would ignite on a few occassions but just did not quite make it.
Does anyone have a diagnosis for this problem? I think that my fuel pump may be clogged or shot.
Any advice would be grealy appreciated on how to address this issue.
Thank you!
westerman77