Question about Chevrolet S 10
The port for either mechanical or electrical installation
is located about six inches behind the oil filter towards the engine. To find it, remove
the passenger side front wheel. You will see the filter. Just behind it is the factory oil
pressure switch. It is silver in color with two wires running into the electrical
This switch only goes to an idiot light on the dash. There is no signal to the PCM. The reason for noting this is that the switch will be permanently removed. If you are scared about not having this light on the dash, think of it this way. You will now be able to see the actual pressure. That switch closes at or below 5 psi of oil pressure. This is lower than you want to be. So the new gauge will be a better solution.
Also, GM decided to use a normally closed switch that opens when the pressure comes up. I was curious as to why GM would do this. If the connector came off or a wire was cut, the light would never come on with the current configuration.
So, after draining the oil, remove the electrical connector off of the pressure switch. Next remove the switch. It is threaded into the housing and comes out fairly easy.
The rest of it is up to you depending on what type of gauge is being used, either mechanical or electrical. I would suggest an electrical since only a single wire needs to be run from the sending unit to the gauge. Whereas the mechanical one would require tubing to be run into the car with the chance of a leak. Warm oil on the carpet inside the cabin is not a good thing.
Either way, the port you will adapt to is a 1/4" pipe or NPT female fitting. If you are using an electrical sending unit, most come with 1/8" pipe threads. You will need to stop by the parts store and get a 1/8" female pipe to 1/4" male pipe fitting. Brass would be fine.
Install your fitting or sending unit, with adapter if needed, and run your signal wire or tubing to the gauge and supply a switched power source for the backlight. Another document is available that describes how to light up your gauges easily so that they dim and light only when the dash lights are on.
Posted on Jul 03, 2009
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Apr 09, 2017 | 1987 Chevrolet Cavalier 4 Door
Mar 17, 2017 | 2003 Chevrolet Malibu
Jul 18, 2013 | Cars & Trucks
Aug 23, 2010 | Chevrolet 1500 Cars & Trucks
Sep 16, 2009 | 1987 Chevrolet Camaro
Jul 22, 2009 | 1987 Chevrolet S-10 Pickup
Jul 19, 2009 | 1987 Chevrolet S-10 Pickup
Jul 14, 2009 | 1987 Chevrolet S-10 Pickup
29 people viewed this question
Usually answered in minutes!