Originally Posted by dcraigk

A couple of weeks ago I did a diesel purge on my new to me champagne TD and during the purge the idle kept getting more and more rough. The purge started turning dark almost immediately. Now it shakes pretty good at idle.

Today I did a diesel purge on my new to me black TD. As the purge went on the idle got more and more rough but on this car the purge color didn’t change much.

Both of these TDs need some sorting and cleaning the fuel system was on my list.

Any ideas? I’m thinking something dislodged and is clogging an injector. Checking and/or rebuilding the injectors was next on my list.