Transmission is not getting any power
My Chevy Silverado caught fire while going down
the road has a bad oil leak I know how to get it fix
but right now the transmission is getting no power
No engine power or no electrical power? You may need a new wiring harness after an engine fire.
It will go, it just seems like it is in slow mode or limp mode as some call it
Without any information on the fire damage all I can say is look at the wiring harness and all the other electronic devices including the engine computer.
Check all the vacuum lines too.
It is possible that it may feel like the transmission but if it feels like it is sluggish or wants to conk out or like it won't go any faster as you try to give it gas it is possible you have a fuel pressure problem try pinching off the fuel return line from the fuel pressure regulator if it runs good pinched it is a bad fuel pressure regulator
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