I did a valve adjustment back in April, replaced all filters twice - once for a Lubri-Moly diesel purge, checked timing chain stretch (4 degrees with no offset key) and replaced the glow plugs with cheap Autolites. This is most likely the culprit. I have heard a lot about their poorer quality over short periods of time. As far as I know, the injectors are original. I do not know about their spray pattern, etc. I will test GPs today to see whats up.

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Thanks,
Mark in NC

"Spark plugs?...We don't need no stinking spark plugs!"
1985 300SD "Der Silberne Schlitten" 420,000 mi


Wish these were diesel:
2003 Ford Club Wagon 130,000 mi