Because you have not found the problem that is causing them to die.
what would keep my car from starting after replacing the center port fule injecter
they all go out !!! they-re the same as the ones on mustangs and others , just keep replacing them , or get a extension adapter to move it off the distributor and away from heat and vibration, and then they will last the life of the motor,
would stirophone keep in heat.
The fan relay is stuck.
You need a socket with a long extension to go through the center of the pulley/shaft to locate the nut. You will have to block the pulley or the motor to keep it from turning while you are removing/replacing the nut.
Because the motor running the compressor is generating more heat than the compressor is cooling. Once you close the door the space being cooled is smaller and the compressor can keep up and overcome that heat from the motor.
The fact that the law of conservation of energy (energy cannot be created or destroyed) states it to be impossible. For a motor to keep moving forever it would have to loose no energy at all to friction or any other force. To keep the motor moving it would have to be 100% isolated from the surrounding environment, which would make it completely useless as a motor.
Yes, is true.
Correct tuning, correct heat range plug, correct oil/gas ratio for the motor
Driver abuse.
There is a short somewhere. Probably the condenser fan motor or the compressor. Time to have it checked out by a competent, trusted techenician.
It could keep the engine from running, but not the valves from moving.