I have a 1985 300D (California version). I purchased the car 1 year ago about 350 miles from my home so I had about a 7 to 8 hour drive back. the car did fine for the first couple hundred miles but later suffered extreme loss of power and slowing to a crawl.

I immediately replaced the primary and secondary fuel filters, but still experience the problem intermittently. The car is showing 200k miles and the injector pump along with the ALDA appear to have never been serviced (they still have the yellow paint spots on the adjustment nut and threads).

The car has never had the acceleration of a 300D Federal version, but seems to run fine most of the time. Today on my way to work the car completely stopped running 6 times in a 12 mile trip. I usually pull over turn the key off, let it rest for a few minutes and it will hesitantly start again, but with very erratic accelerator pedal behavior and lots of blue smoke.

Can anyone here identify this problem or have suggestions?

Thanks,

ruet66