Installing aftermarket temp gauge

Step Find the wire that goes to the lighting circuit. Use your wiring schematic to locate the positive wire that supplies voltage from the light switch to the lights. Step Run a wire from where you are mounting the gauge to the lighting circuit wire. Using a three wire connector, crimp that wire to the lighting wire. Step Attach an eyelet to the end of the wire you just ran from the lighting circuit wire. Step Attach an eyelet to the wire running to the grounding point.

Step Attach an eyelet to the end of the wire that will connect to the gauge. Step Connect the three wires to the gauge. The wire going to the battery goes to the signal or positive terminal on the gauge; the wire connected to the ground goes to the ground or negative terminal. The final wire goes to the lighting terminal. Step Install the gauge in your vehicle. Step Start your vehicle and verify that the gauge is working. Turn on the lights and make sure the gauge is illuminated.

A voltage gauge is a nice addition to any vehicle, and can be a valuable safety measure for drivers who have recurring electrical problems in their cars, or drivers who simply want to take the precaution of knowing there is a problem before the battery is drained. There are a variety of gauges available, in both analog and digital, and in various colors and styles to suit your vehicle.

If you are not comfortable installing the gauge yourself, consider using YourMechanic - a certified mechanic can come to your home or office to install one and ensure everything is working correctly with your gauges.. The most popular service booked by readers of this article is Instrument Voltage Regulator Replacement. Our certified mobile mechanics perform over services, including diagnostics, brakes, oil changes, scheduled mileage maintenances, and will come to you with all necessary parts and tools.

Our certified mobile mechanics make house calls in over 2, U. Fast, free online quotes for your car repair. Instrument Voltage Regulator Replacement Cost. Service Location. Part 1 of 2: The purpose of a voltage gauge Most vehicles built today come with a warning light on the dash that looks like a battery.

Tip : When running the wire from inside of the vehicle and into the engine compartment it is easiest to run it through the same seal as the vehicle factory wiring. Then connect it to the wire that you ran to the battery. Step Run a wire from the gauge to a grounding point under the dash.

Step Install the eyelet and wire to the ground connection. Step Wrap the wire loom around any exposed wiring. Step Install the negative battery cable and tighten until it is snug. Step Remove the memory saver. Home Instrument Voltage Regulator Replacement. The statements expressed above are only for informational purposes and should be independently verified.

Please see our terms of service for more details. Excellent Auto Repair Ratings. YourMechanic Auto Repair. Related Articles. How to Replace an Ambient Temperature Sensor. Experienced Mechanic? Recent Instrument Voltage Regulator Replacement reviews.

Excellent Rating. Rating Summary. Chris 22 years of experience. Request Chris. Mercedes-Benz C V He replaced my alternator in about 20 mins! Excellent, honest mechanic. He was on-time and was able to fix the problem quickly. He pointed out that the expensive part I was told I needed was still good and it only needed a minor repair.

Brandon 20 years of experience. Request Brandon. Dodge Grand Caravan V Very knowledgeable and professional, would recommend him to all my friends. Tien 23 years of experience. Request Tien. Toyota Corolla L Clip the gauge light into the hole in the back of the temperature gauge. Route the temperature probe through the engine compartment to the existing temperature sending unit mounting location.

Avoid running the tubing near moving parts or exhaust components. Remove the existing temperature sending unit with an open-ended or adjustable wrench. Wrap two layers of teflon tape clockwise around the threads of the included mounting nut. Screw the mounting nut into the temperature sender mounting hole and tighten securely with a wrench. Insert the temperature probe into the mounting nut and tighten the sealing nut securely into the mounting nut with a wrench.

Start the engine and check for leaks and proper gauge operation. Recheck and tighten all connections if leaks are found or if the gauge fails to operate properly. David Young has written for the website for the Save Darfur Coalition and is currently writing articles for various other websites.

Step 1 Choose a location for the temperature gauge mounting hole on the vehicle dashboard. Step 3 Slide the temperature gauge into the mounting hole. Step 4 Connect one wire from the gauge light to a grounded metal part of the vehicle chassis using an existing bolt or self-tapping screw.

Step 5 Route the temperature probe through the engine compartment to the existing temperature sending unit mounting location. Step 6 Wrap two layers of teflon tape clockwise around the threads of the included mounting nut.