Replace them. This can be done without removing the heads. Talk to your mechanic about this.
No, not unless there is a problem with the valve which is rare.
There is no valve inside. It purely restricts flow to the front so that the more efficient front brakes are not doing all of the braking. You will only find these on disc/drum combinations. If you are experiencing a brake pull, you need to replace either the front brake hoses or one of the calipers. If the brake warning light switch is leaking, the proportioning valve will have to be replaced.
no,this valve intergrates with the sensors in the brake system. replace the HSP valve
No the valve seals are between the cam and the head, under the valve spring
Most common cause for a misfire on the 2.5L is oil in the spark plug holes do to leaking valve cover plug tube seals. You would need to replace plugs, wires, and valve cover gaskets in that situation.Most common cause for a misfire on the 2.5L is oil in the spark plug holes do to leaking valve cover plug tube seals. You would need to replace plugs, wires, and valve cover gaskets in that situation.
There is a proportioning valve and once the repair is done and you have bled all the air out of the system the valve should reset itself unless it is stuck. If it is stuck you may have to replace the valve assembly if you can't free it up.
when it starts leaking
It is normal to replace them.It is normal to replace them.
AnswerThe proportioning valve and warning switch is integrated into the master cylinder assembly.I think the proportioning valve is located on the frame rail under the master cylinder?Thats where it is on my 1980.The proportioning valve is not on the frame rail on an 84. It is inside the master cylinder.
Height sensing proportioning valve.
Rubber valve stem seals are the parts used to keep tires from leaking around the valve stems. They provide a tight seal which also keeps them securely in place.