The only way I could see the cooler solving your problems is if
you had an original cooler that had a blockage.
The cooler was installed after the problem, (and it still happens), and I only installed it to tow a travel trailer, not to fix the problem.
Did the dealer drop the pan and change the filter?
Damn good question. They claimed the fluid wasn't burnt, but they could have just pulled the dipstick. My invoice does not give any detail about dropping the pan etc... I'll have to call them.
Their response was "We aren't sure why it happens. Come by when it does."
Problem is it lasts for 15-20 seconds and they're 2 minutes away.
Lately it occurs right after the first start in the morning. Temp is
3 - 8 degrees (Canadian:)
Thanks again for your info and reply.