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Never hurts to replace that filter

Good luck with that. Did you make a fuss when you saw this happen?

Not good. You said you had a miss. We aren't talking head gasket are we?

He didn't overheat it did he?

Tony, are you going with synthetic oil? Redline makes a really good high temp oil that I am currently running. Supposed to be formulated for heavy use in things like large motor homes.

Tony, that is why I am suggesting doing some work with an ohm meter. Pull the plug on the computer and test the pin that works the TCC and test with it plugged in. If it is an open circuit, or very...

I had this same problem on my 4L60E. My solenoids worked, but it wouldn't shift it, and then after 30 min of driving it would shift down into 3rd. I had to get the ohm meter out and found that I...

Doesn't sound like that TC solenoid is working. Stuck perhaps?

Tony, have you ohmed the old and new solenoids?

Cool, got it running yet?