Not really. What you are trying to do is set or verify the full mark on the stick. Once that is done you can later modify the amount of trans fluid
using the stick mark. If you want to do it hot, that is OK too. Then you get both jobs done at the same time. I just hate working on hot things
when I can get some of the job done without burning my fingers. The reason for starting the engine is to make sure the converter is full. If it is
not full you will drain out too much fluid when the modulator is removed.
If it were me I would start it up for a minute or so and shut it off. Pull the modulator. Check / mark the level on the stick. Put it back
together and drive it until hot. Shut it off again and pull the modulator to let any excess fluid out. Reinstall it and check the level on the
stick again. I have a hard time reading the stick when the fluid is hot.
--
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
using the stick mark. If you want to do it hot, that is OK too. Then you get both jobs done at the same time. I just hate working on hot things
when I can get some of the job done without burning my fingers. The reason for starting the engine is to make sure the converter is full. If it is
not full you will drain out too much fluid when the modulator is removed.
If it were me I would start it up for a minute or so and shut it off. Pull the modulator. Check / mark the level on the stick. Put it back
together and drive it until hot. Shut it off again and pull the modulator to let any excess fluid out. Reinstall it and check the level on the
stick again. I have a hard time reading the stick when the fluid is hot.
--
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana