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Old 12-14-2013, 07:52 PM   #1
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New gauge cluster circuit board

I'm feeling pretty proud of myself, I installed a new gauge cluster circuit board and LED lights in my dash today. The only problem is that now the oil pressure gauge pegs out when I start it up. I hate the thought of taking it all apart again. Does anyone have any idea why it's doing this? All the other gauges, including the clock, are working just fine.

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Old 12-14-2013, 08:31 PM   #2
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I'm feeling pretty proud of myself, I installed a new gauge cluster circuit board and LED lights in my dash today. The only problem is that now the oil pressure gauge pegs out when I start it up. I hate the thought of taking it all apart again. Does anyone have any idea why it's doing this? All the other gauges, including the clock, are working just fine.
Was the gauge working before you changed the circuit board?

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Old 12-14-2013, 08:54 PM   #3
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Yes, it was working prior. I tried to be careful with them since I know they're fragile, but are they that fragile?
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Old 12-15-2013, 01:18 AM   #4
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Yes, it was working prior. I tried to be careful with them since I know they're fragile, but are they that fragile?
Any chance the oil sending unit switch has been disconnected somehow in the engine compartment? That would peg the gauge.
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Old 12-15-2013, 02:45 AM   #5
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Any chance the oil sending unit switch has been disconnected somehow in the engine compartment? That would peg the gauge.
I didn't touch anything under the hood, in fact, I forgot to disconnect the battery. Do you think I could have fried the gauge?
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Old 12-15-2013, 08:57 AM   #6
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I didn't touch anything under the hood, in fact, I forgot to disconnect the battery. Do you think I could have fried the gauge?
Nope. I'm pretty sure it's not fried at all. Just check for me. Do you know where the sending unit is? Passenger side of engine close to the firewall. Small clip on top.
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Old 12-15-2013, 10:56 AM   #7
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Nope. I'm pretty sure it's not fried at all. Just check for me. Do you know where the sending unit is? Passenger side of engine close to the firewall. Small clip on top.
I'll check. I'm not exactly sure where it is, but I'll look for disconnected wires, that's easier than taking the whole thing apart again.
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Old 12-15-2013, 01:35 PM   #8
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When you replaced the circuit board, did you clean the contacts on the plug that plugs into the cluster? You might give that a try if you end up pulling the gauge panel again.
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Old 12-15-2013, 02:43 PM   #9
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When you replaced the circuit board, did you clean the contacts on the plug that plugs into the cluster? You might give that a try if you end up pulling the gauge panel again.
I did not clean the contacts, they seemed to be pretty clean already. Likewise, the contacts for the gauges were amazingly clean as well. I checked the pressure sending unit and everything was plugged in. Since it looks like I will have to pull it apart, I'll clean the plug contacts as well as the gauge contacts. Replacement gauges are $35 from Quadratec, so I guess that will be my last resort.
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Old 12-15-2013, 04:21 PM   #10
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Wait. Read PM
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Old 12-21-2013, 08:24 PM   #11
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Wanted to follow up... Took the gauge cluster apart today and cleaned all the contacts and re-seated the gauges, and now they all work. What started as a simple project to change out the gauge circuit board and install LED lights ended up taking way too much time! But at least everything is working now and I can see my gauges after dark.
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Old 12-21-2013, 10:33 PM   #12
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Wanted to follow up... Took the gauge cluster apart today and cleaned all the contacts and re-seated the gauges, and now they all work. What started as a simple project to change out the gauge circuit board and install LED lights ended up taking way too much time! But at least everything is working now and I can see my gauges after dark.
Excellent!
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Old 12-22-2013, 10:18 AM   #13
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Wanted to follow up... Took the gauge cluster apart today and cleaned all the contacts and re-seated the gauges, and now they all work. What started as a simple project to change out the gauge circuit board and install LED lights ended up taking way too much time! But at least everything is working now and I can see my gauges after dark.
You go girl
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Old 12-23-2013, 11:23 PM   #14
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So in the process of doing the gauge cluster upgrade, I found that my gauges had white paper overlays and that underneath they were the original black. I thought all along I had white gauges. So I decided to remove the overlays and take them back to the original black. Now I have the reverse problem: I can see the gauges really well at night with the white LEDs on the black gauges, but I can't see them very well now in the daylight.

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Old 12-24-2013, 07:43 AM   #15
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Just me and my addiction to all things stock but I like the faces in black. And now I'm ordering white LEDS for mine to replace the blue ones I installed. Great clean look. Thanks kiddo
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Old 12-24-2013, 08:29 AM   #16
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Just me and my addiction to all things stock but I like the faces in black. And now I'm ordering white LEDS for mine to replace the blue ones I installed. Great clean look. Thanks kiddo
I'm going to leave it like this and maybe see if running my driving lights during the day will help. I noticed on my Mustang that the black gauges are backlit even when the lights aren't on.

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