It maybe a leak in the intake manifold gasket.
I would guess you are low on transmission fluid.
mazda mechanic says no,at least with my problem.possible,it could be air in fluid?check small fluid reserve on drivers side,by fuse box.it does say to use brake fluid in this reserve.
The motor could be frozen up or the motor resistor could be blown. If the motor is frozen and you try to turn it on, most of the time it will blow the resistor which in my 1986 Mazda b2000, is located behind the glove box mounted in the air duct.
It could be a stuffed catalytic converter.
If you could give a little more info on this issue it would be easier to pin point. But from what i get is that the blower motor needs to be replaced
Bad or dirty idle speed sensor, TPS, It could be a few things, it is better to pull codes from the ECU and run the vehicle with scanner on to see the live data and get to the problem directly and save time and money guessing
It could be your timing is off or your timing chain needs replacement.
The drive belt may be slipping or going bad.
Yes that does not sound like transmission issue to me. that is usually shown by trouble changing gears.
Could be in need of a serious tune up.
You could have the firing order messed up.
Check the temp sensor on the thermostat goose neck. Mine got broken and when the truck warmed up it wouldn't start. Let it get cold and it would. about $25 at a parts store.