Fuel guage and Temperture guage dead

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Old 10 Apr 2013, 08:21 pm   #1 (permalink)
Den
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Default Fuel guage and Temperture guage dead

1987 Toyota PU 2WD carburetted. The day before both were fine. The next morning the needles in both don't move. All other lights, signals, horn etc work fine. Checked all the fuses behind the panel next to the brake pedal, all fuses under the hood and even checked behind the glove box but those seemed to be for the AC and Heater. Anybody with any ideas/tips? If I have too I am prepared to start digging under the dash for loose/frayed wiring but Ineed to know where to look to find the correct wires.
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Old 11 Apr 2013, 04:54 pm   #2 (permalink)
Den
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Default Re: Fuel gauge and Temperture guage dead

On Wednesday, April 10, 2013 9:21:59 PM UTC-4, Den wrote:
> 1987 Toyota PU 2WD carburetted. The day before both were fine. The next morning the needles in both don't move. All other lights, signals, horn etc work fine. Checked all the fuses behind the panel next to the brake pedal, all fuses under the hood and even checked behind the glove box but those seemed to be for the AC and Heater. Anybody with any ideas/tips? If I have too I am prepared to start digging under the dash for loose/frayed wiring butI need to know where to look to find the correct wires.


Here is an update. I searched other Toyota truck forums last night and found a post on one where a fellow had the same problem as me and he found a solution. He removed the gauge cluster from the dash so he could access the rear of the cluster. He found a couple of the screws that hold the circuit board down and hold the Temp and Fuel gauges also provide a ground point. Hefound these screws loose. After he tightened them everything came back to life.

So, this afternoon, I tried the same thing. But none of the screws on my PCB were loose. So I loosened them and re-tightened them all just the same. Ire-assembled everything and found that my gauges worked again. I'm leavingwell enough alone.
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Old 11 Apr 2013, 04:56 pm   #3 (permalink)
Den
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Default Re: Fuel gauge and Temperture gauge dead

On Wednesday, April 10, 2013 9:21:59 PM UTC-4, Den wrote:
> 1987 Toyota PU 2WD carburetted. The day before both were fine. The next morning the needles in both don't move. All other lights, signals, horn etc work fine. Checked all the fuses behind the panel next to the brake pedal, all fuses under the hood and even checked behind the glove box but those seemed to be for the AC and Heater. Anybody with any ideas/tips? If I have too I am prepared to start digging under the dash for loose/frayed wiring butI need to know where to look to find the correct wires.



Here is an update. I searched other Toyota truck forums last night and found a post on one where a fellow had the same problem as me and he found a solution. He removed the gauge cluster from the dash so he could access the rear of the cluster. He found a couple of the screws that hold the circuit board down and hold the Temp and Fuel gauges also provide a ground point. Hefound these screws loose. After he tightened them everything came back to life.

So, this afternoon, I tried the same thing. But none of the screws on my PCB were loose. So I loosened them and re-tightened them all just the same. Ire-assembled everything and found that my gauges worked again. I'm leavingwell enough alone.
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