Save your time and do just 2-3 drain&fills. Rationale: 1. Only a part of ATF flow is directed towards oil cooler, everything else circulates internally, i.e. new fluid mixes with the old one 2. Cooler return line goes basically into sump, where your fresh fluid mixes with whatever is splashing t...

vtl, after removing the ATF plug is there a aluminum crush washer that needs replacement or can I re-use the old one? Yes, a regular washer. Flip it over, can reuse one more time, then replace. I've got a few dozens of these: https://www.fcpeuro.com/products/volvo-drain-plug-washer-850-c70-s40-s60-...

Transmission has around 8 qt total capacity, about 3-3.5 quarts are in sump. You drain that and replace the fluid. Drive some miles/days/months, repeat. You can't replace 100% of ATF, it's physically impossible. Unless you wash like 40-50 quarts through the transmission to lower the old fluid conten...

This repeat eliminates the need for resetting fluid counter via VIDA. You don't have to do that. I never reset the counter. The counter is incremented when ATF temperature exceeded 300F and keeps there for 3 minutes. When the counter reaches some value, the transmission changes its shifting strateg...

99% it's the starter, as others already said.

What's your fuel trims (STFT, LTFT)?

Smoke the intake, you have a huge hole.

Ok, so where can I get a smoke machine? I checked the Autozone loaner tool program and doesn't look like they have one....I'd rather not buy one, unless I can get one for cheap... Build one? Or ask in shops around your area if they can diagnose the leak for you. I have this one: https://www.amazon....

Right, that's why I mentioned kerosene under pressure Just a cleaner spray is not enough.

Maybe even heated low viscous ATF under pressure to avoid ATF dilution with non-ATF liquid?