every time you take the tire off, its recommended, and always use nickel plated valve cores along with the factory aluminum valve caps. the brass cores will corrode and ruin the sensor
It is built into the throttle body. Rebuild kits are available.
When charging a system with a low pressure control and the control keeps shutting the compressor off, you should:
Depand apone the system required pressure for water supply. it should be 1.5 times of max system pressure and for drainage only gravity pressure is enough to test the system.
the pressure
Engine oil pressure, cooling system pressure, ac pressure, fuel pressure?
50
34 to 39 psi on 1985-1991 models. The fuel system is under constant pressure (meaning the system pressure must be relieved PRIOR to disconnecting any lines or other parts of the fuel system) therefore, system pressure should change very little, unless there is a leak in the system.
The pressure should be equal to a saturated suction temperature of around 40*F. The pressure would differ depending on which refrigerant is used.
No, there should not be pressure in the radiator after cooling down. If there is still pressure, it could indicate a problem with the radiator cap or the cooling system, such as a leak or a failing pressure release valve.
pressure test your coolant system, if it wont hold pressure you most likely have cracked some part of the engine internally, hence leaking coolant into the oil
find the schrader valve on the fuel rail depress the stem and it should release the pressure from the fuel system
As long as the fluid was spotlessly clean and of the correct type, it should not have harmed the transmission. The only way I can think of, would be if the hydraulic system became over-pressurized. Which can't happen if it has a pressure regulator valve after the pump. Which is a very common component in a modern transmission.