daleclough

When starting a cold car the OP gauge reads about half to slightly above. As the cars warms up and I drive a bit the OP gauge drops to just over the first mark (idle).

When driving the OP gauge reads around the second mark.

Normal?

If I were to go hunting to improve OP, where should I start?

Thanks!

URLACHER54

on my 88 GT when i start the pressure goes up about 3/4 of the way and when it gets warm it will drop to about1/4 up (when sitting) but when i go it goes back up to 3/4 of the way up, my old 85 GT did this to even when i put a new motor in it, i dont know if its normal though.

jtmustang

my car is the same way start up cold half to 3/4,then i put a mechanical guage on it and it reads 50 at cold and about 25 when warm idling so that is not real low but bearings or oil pump are getting worn out