1990 2.9 stalls at any speed
 

Hello all .
Vehicle 1990 bronco II 2.9 auto . This bronco just started stalling at any speed . It will totally cut out no back firing it will just shut off. Once it stops It will start after sitting a few minutes I am not sure if wiggling the coil wire around caused it to restart or not.This has only happend twice so I am not sure if it was the letting sit before starting or the movement of the coil wire. When running the engine runs great no miss. Also I just noticed my airconditioning compressor comes on every 10 opr 15 secs is this normal . the airconditioner doesn't work and the clutches are emgaging when the air switch is turned off . thanks to anyone who can help

1990 2.9 stalls at any speed