gages went wonky
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4th Gear
Joined: Aug 2024
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gages went wonky
1994 e150 . The oil and temp gauge are pegged on high and volt meter pegged low, fuel gauge and speedo work fine.They all malfunctioned at once. I checked all fuses and removed cluster to inspect and clean connections.
All appear ok.Doesn't look like this has instrument voltage regulator.I also ran another body ground.I'm thinking my next step is to replace the instrument cluster??
All appear ok.Doesn't look like this has instrument voltage regulator.I also ran another body ground.I'm thinking my next step is to replace the instrument cluster??
Last edited by nwdr; Aug 3, 2024 at 01:08 AM. Reason: spelling
Fleet Owner
Joined: Aug 2010
Posts: 21,253
Likes: 1,656
From: Reynoldsburg, Ohio
At the instrument cluster body where the printed circuit board receives the factory wiring connectors make sure the ground connections show continuity.
Could be time for an entirely "new" IC but without testing the factory wiring circuits there's no real guarantee that would solve this issue.
Could be time for an entirely "new" IC but without testing the factory wiring circuits there's no real guarantee that would solve this issue.
Hotshot
Joined: Jul 2020
Posts: 10,478
Likes: 2,636
From: Near Salt Lake City
If you ground either of those sender wires, their gauges will peg
Unlikely to have a short to ground in both sender wires but that is what I would rule out first
I'd pull the cluster and inspect the wiring back to the senders for shorts to ground
Unlikely to have a short to ground in both sender wires but that is what I would rule out first
I'd pull the cluster and inspect the wiring back to the senders for shorts to ground
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4th Gear
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After further checking I discovered non of the gauges are working, I thought the fuel gauge was but it isn't so no temp, fuel, volt or temp, odometer and speedo work. I had ordered used instrument cluster so plugged it in and still nothing. Is there a ground point or a fuse I be missing? bout ready to throw in the towel 
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Fleet Mechanic
Joined: Jan 2023
Posts: 1,318
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Use the wiring diagrams to test for voltage at the instrument cluster connectors. Do any of the illumination lamps work?
https://charm.li/Ford%20Truck/1994/E...Lock%20Brakes/
A wire may be broken or chewed by rodents.
https://charm.li/Ford%20Truck/1994/E...Lock%20Brakes/
A wire may be broken or chewed by rodents.
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