RTH,

I also have an 84 300Dt and have a very similar temperature issue that you described. Some other questions:

1. What was your fuel milage?

2. Did you experience any nailing or light thudding at lower engine speeds from the affected cylinders?

3. Anything strange when you started the car in the morning?

4. Did it effect performance?


Thanks.

__________________
82 240D - 257k
84 300d - 86k