Thanks for all the comments. I pulled off the wire at the sender,
cleaned he contacts with fine sandpaper, tightened the socket and now
Another part going south on the Aerostar. Oil pressure gauge has
always read slightly about center. I know it's an on/off indicator, not
reading actual pressure. Yesterday I noticed it was reading near the
left side of the gauge, in the bottom 10% of the 'normal' marked range,
but never seen in there before. Oil level is fine, no leaks, no noises,
etc. Oil & filter were changed within the last month.
Will check the gauge problem out today using this link from autozone...
sounds like it could be the wiring or gauge. Any other ideas?
I thought about converting it to one that shows the actual pressure, but
from what I've read it sounds like that could interfere with the
computer. If that's the case, how is the easiest way to add a 2nd
gauge to show pressure?
I see several pages about R/R the on/off sender and replacing it with a
"real" variable sensor. But can't find anywhere what the typical oil
pressure of the 3.0 engine should be, and the full scale range of the
stock gauge. Anyone know?
Also, can't tell if the pressure signal is also fed into the computer,
or just goes to the gauge only. If it goes to the computer, I'll keep
it stock. If not, I'll put in a variable resistance sender, or just
install a pneumatic pressure gauge under the dash and run a lenth of
1/8-inch ss tubing to the sender port..