I have just picked up my new to me 1985 300TD with 235,000 miles, no rust and complete history including recent short block replacement. It already has a Greasecar WVO conversion so I drove home on grease. It has been great to use the WVO instead of fossil Diesel, but there are a couple of issues that I need help with.

1. The shift from 1-2 up and down is a bit of a jolt
2. The engine has a little bit of a rough idle and will not always shut off with the key.
3. The A/C does not blow cold air. Any quick things to check on this would be apreciated.
4. The Cruise Control does not work. Also any quick ckeck items ?

Any help is very much appreciated.