How to Install Your Oil Pressure Gauge
An oil pressure gauge will let you know if the right amount of pressure is maintained to keep your vehicle's bearings and connecting rods well lubricated. Without this lubrication, the components will overheat and cause extensive damage to your engine. Your oil pressure gauge can give you ample warning before such a problems arises. Installing an oil pressure gauge to your vehicle is a good investment and a job you can do yourself with the right tools.
Difficulty Level: Moderate
Here's what you'll need:
- Open-ended wrenches
- Teflon tape
- Knife or inline splicer
- Oil pressure gauge kit
- Power drill (optional)
- Rubber grommet (optional)
- Vehicle owner manual
Step 1: Make sure your engine has cooled before you begin. Open the hood of your vehicle and use a wrench to disconnect the negative battery cable from the battery terminal.
Step 2: Find the clear oil line. The location of this component varies depending on the vehicle. Insert this oil line into the fitting at the back of your new oil pressure gauge and use your open-end wrench to tighten the fitting. Apply Teflon tape as needed.
Step 3: Choose a suitable place to mount your oil pressure gauge. You can mount it on the dashboard, or under the dashboard, or any other location where you can easily view it from the driver's seat. Use your screwdriver to mount the gauge. The oil pressure gauge kit should come with the necessary screws or bolts.
Step 4: Make sure you ground the black wire for the gauge lights. Fasten a round eyelet to the end of the grounded wire and bolt it to a paint-free metal surface. Use an inline splicer or a knife to splice the gauge light's power wire into the existing gauge light wiring harness.
Step 5: Run the oil line through the firewall and into the engine bay. There should be an existing hole you can use for this purpose (one with other wires going through it). If not, you can use your power drill to drill a small hole. Insert the rubber grommet in that hole to protect the oil line.
Step 6: Your oil pressure gauge kit should come with a variety of threaded fittings. Find one compatible with your vehicle and install the that to the other end of the oil line. Wrap Teflon tape around it to prevent leaks.
Step 7: Thread the fitting into the appropriate slot on your engine block.
Step 8: Reconnect the negative battery cable to the battery terminal. Start your engine and check if your oil pressure gauge is working properly.
Refer to your vehicle's owner manual for specifications that will require you to deviate from these general instructions.