Any advice on how and where to hook up a sending unit for an electronic oil pressure gauge? I want to keep my factory guage operational but would like to monitor my oil pressure..thanks in advance! By the way its a 99 f150 4.6

 

At the moment I don't know how you would match the sender resistance to drive the gauge and expect any accuracy.
Meaningfull pressure calibration! It won't be much better that what you have now.
It can be done but at what outcome?
The dash gauge is driven from a microprocessor chip circuit.
If you can take things apart and have some idea of what to do then it could happen.
Here is some idea of what you should arrive at; cold oil pressure in my 02 4.6 is at nearly 75 psi. Hot idle is about 26 psi. Running hot pressure is about 55.
I have an electric after market gauge and sender.

 

Thanks for the info...and i want both..the factory idiot light as well as a meaning gauge..is there a way to have both? Can i install a fitting that will support my factory gauge and an electronic aftermarket gauge? I have looked high and low for an aftermarket kit but have come up empty

 

Leave the stock gauge system as is.
Auto Meter makes both the mechanical and electric versions.
To install the sensor, remove the stock sender switch and install a tee and nipple assembly of 1/8" pipe fittings.
Reinstall the original switch sender in the TEE and connect on to the longer nipple to the new sender.
I have the electric version mounted on the block rail and connected with a copper line to the nipple.
A single wire thu the fire wall to the gauge.
You need a switched power source to power the gauge and a light source off the dash circuit. For these, I used an add-a tap assembly with their own fuses so the regular circuits are not upset if the new wiring developes a fault.
The taps are made off the inside fuse box.
Use your owner's manuel to tell what fuses will power when power is tuned on thru the ignition switch and the light switch.
The pressure switch is behind the oil filter adapter.
My gauges are the large white faced units mounted off the lower dash apron over the trans hump and can be seen at all times without moveing out of normal seat position. The trailer brake controller is mounted on the same assembly so it all can be reached easy.
Good luck.

 

i have been doing some reading and unless i am just way off base it seems that some guys have modified thier idiot light to be a functional gauge by replacing the stock sending unit with and electrical sending unit and placing a jumper wire on the stock oil gauge..does this sound right?

 

Yes it's right but what besides a moving gauge was the result?
Do you want to know what the pressure is or just see a gauge move?
If one goes to that extent, might as well go all the way and end up with a gauge that tells you more than there is just pressure.