I just brought a 91 GT and the voltmeter reads past the limit and the oil and water temp do not move. I may need to just reset the volt gauge because when i shut off the car it stops midway on the gauge. Someone installed white faced gauges on and probably did not set them back right. My question is how do i reset all three gauges?
Gauges not working properly
- Thread starter Stang912
- Start date
Just a guess, but if the guage has the white face overlay, and not the actual white face guages they may just be binding up, check and make sure the needle isn't coming into contact with the white face overlay if it is an overlay
sometimes since the overlay is thicker it causes problems with the needles.
sometimes since the overlay is thicker it causes problems with the needles.
Setting dash gauge pointers after they have been removed to install white face gauges.
The middle mark on the dash voltmeter is 14 volts. Use a DVM across the battery with the engine idling and use that reading to help set the dash voltmeter needle accordingly.
The oil pressure sender is on the front of the engine near the oil filter. Make sure it is connected. It has a single wire that pushes down on the screw on top of the sender housing. The middle mark on the oil pressure gauge is 50 PSI. If you had a mechanical gauge tee'd into the pressure fitting for the dashboard gauge, you could use it to set the dashboard gauge.
The water temp sender is located in the driver side front of the intake manifold. Make sure it is connected. It has a single wire that pushes down on the screw on top of the sender housing. The middle mark on the dash gauge is supposed to be about 200 degrees. If you had access to a handheld infrared spot thermometer, you could use it to set the gauge. Open the radiator cap on a warm engine and aim the red beam at the coolant. Or if you have a cooking thermometer, you could open the radiator cap on a warm engine and immerse the thermometer in the coolant and use that reading to help set the gauge
The middle mark on the dash voltmeter is 14 volts. Use a DVM across the battery with the engine idling and use that reading to help set the dash voltmeter needle accordingly.
The oil pressure sender is on the front of the engine near the oil filter. Make sure it is connected. It has a single wire that pushes down on the screw on top of the sender housing. The middle mark on the oil pressure gauge is 50 PSI. If you had a mechanical gauge tee'd into the pressure fitting for the dashboard gauge, you could use it to set the dashboard gauge.
The water temp sender is located in the driver side front of the intake manifold. Make sure it is connected. It has a single wire that pushes down on the screw on top of the sender housing. The middle mark on the dash gauge is supposed to be about 200 degrees. If you had access to a handheld infrared spot thermometer, you could use it to set the gauge. Open the radiator cap on a warm engine and aim the red beam at the coolant. Or if you have a cooking thermometer, you could open the radiator cap on a warm engine and immerse the thermometer in the coolant and use that reading to help set the gauge
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