'95 Van gauge problems
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'95 Van gauge problems
OK- I need advice from someone who understands Chevrolet dashboard gauges.
The vehicle- 1995 G-20 5.7L Beauville van.
The gas gauge reads too high. On full tank, when new, the gauge would drop to the “F” mark after I used 4-5 gallons. Two years ago, I noticed the gauge drifting up and down while driving. Now it is stable again, but I use 10 gallons of gas before the needle drops to “F”. Boy, does that last half-tank go fast!
The temperature gauge reads too low. When new, at normal operating temperature the needle was just below mid-scale. Now, it reads 1/4 of full-scale. Haven't measured engine running temperature, but the heater output is hotter than factory minimum spec. (155 degrees actual with outside temp of 32F, min. spec is 141).
The oil gauge reads high. When new, the gauge read just above mid-scale when running, now it reads ¾ of full-scale.
A digital voltmeter says my electrical system is running at 14.0 volts, engine running above idle, headlights off.
All these gauge reading changes have happened over the past 2 years. I doubt my fuel sender, thermostat/temperature sender and oil sender have all gone south at the same time. Any thoughts?
The vehicle- 1995 G-20 5.7L Beauville van.
The gas gauge reads too high. On full tank, when new, the gauge would drop to the “F” mark after I used 4-5 gallons. Two years ago, I noticed the gauge drifting up and down while driving. Now it is stable again, but I use 10 gallons of gas before the needle drops to “F”. Boy, does that last half-tank go fast!
The temperature gauge reads too low. When new, at normal operating temperature the needle was just below mid-scale. Now, it reads 1/4 of full-scale. Haven't measured engine running temperature, but the heater output is hotter than factory minimum spec. (155 degrees actual with outside temp of 32F, min. spec is 141).
The oil gauge reads high. When new, the gauge read just above mid-scale when running, now it reads ¾ of full-scale.
A digital voltmeter says my electrical system is running at 14.0 volts, engine running above idle, headlights off.
All these gauge reading changes have happened over the past 2 years. I doubt my fuel sender, thermostat/temperature sender and oil sender have all gone south at the same time. Any thoughts?
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Joined: Aug 2010
Posts: 1,054
Likes: 5
From: New York City USA
OK- I need advice from someone who understands Chevrolet dashboard gauges.
The vehicle- 1995 G-20 5.7L Beauville van.
The gas gauge reads too high. On full tank, when new, the gauge would drop to the “F” mark after I used 4-5 gallons. Two years ago, I noticed the gauge drifting up and down while driving. Now it is stable again, but I use 10 gallons of gas before the needle drops to “F”. Boy, does that last half-tank go fast!
The temperature gauge reads too low. When new, at normal operating temperature the needle was just below mid-scale. Now, it reads 1/4 of full-scale. Haven't measured engine running temperature, but the heater output is hotter than factory minimum spec. (155 degrees actual with outside temp of 32F, min. spec is 141).
The oil gauge reads high. When new, the gauge read just above mid-scale when running, now it reads ¾ of full-scale.
A digital voltmeter says my electrical system is running at 14.0 volts, engine running above idle, headlights off.
All these gauge reading changes have happened over the past 2 years. I doubt my fuel sender, thermostat/temperature sender and oil sender have all gone south at the same time. Any thoughts?
The vehicle- 1995 G-20 5.7L Beauville van.
The gas gauge reads too high. On full tank, when new, the gauge would drop to the “F” mark after I used 4-5 gallons. Two years ago, I noticed the gauge drifting up and down while driving. Now it is stable again, but I use 10 gallons of gas before the needle drops to “F”. Boy, does that last half-tank go fast!
The temperature gauge reads too low. When new, at normal operating temperature the needle was just below mid-scale. Now, it reads 1/4 of full-scale. Haven't measured engine running temperature, but the heater output is hotter than factory minimum spec. (155 degrees actual with outside temp of 32F, min. spec is 141).
The oil gauge reads high. When new, the gauge read just above mid-scale when running, now it reads ¾ of full-scale.
A digital voltmeter says my electrical system is running at 14.0 volts, engine running above idle, headlights off.
All these gauge reading changes have happened over the past 2 years. I doubt my fuel sender, thermostat/temperature sender and oil sender have all gone south at the same time. Any thoughts?
I havent put a full tank of fuel in the car yet but I had that type of behavior on a Ford Country Squire I had before. The fuel gauge would go past F on a fill up and then stay there for about 100 miles and the drop precipitously to 3/4. Then when the gauge would hover around E the low fuel light would come on even though I still had 7 gallons in the tank.
On another Ford it would go hang out at 1/2 tank for a long time and then swoop down to 1/4 tank just like that. I had determined it was the position of the float in the fuel level sending unit that was out of whack.
But my problem really is what is causing the Temp gauge not to work. I dont know if its the cluster or the temperature sensor that is screwy. But I wanna know before I go on a trip.
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