I need to know how do i replace a haeter core on a 1994 buick park avenue?
It has both.
The coolant sensor on a 1994 Buick Roadmaster is located just above the Harmonic Balance pully at about 2 oclock
It doesn't have a mass airflow sensor.
The schematic should be on the fan shroud.
My 92 PA did the same thing. I had to replace the crank sensor and then the cam sensor. Either one can cause this problem.
Left rear of engine compartment.
THERE SHOULD BE A PLUG ON THE BOTTOM OF THE RAD
Pull the fuse or fuel pump relay.