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How to dry the mileage display?

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Old Feb 27, 2026 | 10:15 PM
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How to dry the mileage display?

I don't drive my 1994 F150 too much and it has some pretty significant water leaks into the cab that I've remedied recently by putting a tarp over the cab and cowl.

The mileage display has some water droplets - presumably from the warm-up/cool-down cycles that occur while it's parked. Attached are a couple of pics.

Is there a good way to get rid of those water condensation droplets?

I do have a bag of DampRid handing in the cab.



 
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Old Feb 28, 2026 | 09:09 PM
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Is that moisture or crazing? Its hard to tell from the photos. If its moisture, you can leave the windows opens and let the breeze dry it out. If it really bothers you, you can take out the cluster and let it bake under a heat lamp for a day with a fan blowing over it to help evaporate and pull out the moisture.
 

Last edited by Prototypemech; Mar 1, 2026 at 01:15 PM.
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Old Mar 1, 2026 | 10:27 AM
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Doesn't look like moisture to me.
Looks like the glass of the LCD has separated due to heat.

 

Last edited by wwhite; Mar 1, 2026 at 10:28 AM.
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Old Mar 1, 2026 | 05:14 PM
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If it is moisture, a fan setting under the dash would help it along.
 
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Old Mar 3, 2026 | 09:49 AM
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I wrote to the folks at Complete Performance https://cpaddict.com/
and they suggested it was a defect in the odometer LCD display.

Does anybody have a suggestion for trustworthy rebuilt (or good used, warranteed) speedometer suppliers?

 
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Old Mar 3, 2026 | 10:09 AM
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I purchased a new one and installed it myself. I did this when I sent the PSOM out for a rebuild. I've owned my 95 F250 since 1997 and plan to keep it, so I tend to restore items that I remove. My plan may cost me more, but I have never had my truck fail.........yet.

https://modulemechanics.com/product/...creen-display/
 
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Old Mar 3, 2026 | 08:20 PM
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I found another thread from approximately 15 years ago where the odometer LCD was defective in manner similar to mine. He removed a "clear tape" layer on the LCD component. And put it back into the speedometer pod and the odometer looked pretty good compared to the original troubled state.

I'm thinking about doing this repair because I've got nothing to lose before having to spend $100 plus shipping on a new LCD.

My question - once the defective tape layer is removed from the LCD component do you think coating it with clear nail polish would help its readability or longevity? If not clear nail polish, what other substance?
 
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Old Mar 4, 2026 | 08:00 AM
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Originally Posted by oldhard47
I found another thread from approximately 15 years ago where the odometer LCD was defective in manner similar to mine. He removed a "clear tape" layer on the LCD component. And put it back into the speedometer pod and the odometer looked pretty good compared to the original troubled state.

I'm thinking about doing this repair because I've got nothing to lose before having to spend $100 plus shipping on a new LCD.

My question - once the defective tape layer is removed from the LCD component do you think coating it with clear nail polish would help its readability or longevity? If not clear nail polish, what other substance?
Since its glass, I'd put nothing on it.
 
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Old Mar 4, 2026 | 09:31 AM
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Do not put any type of liquid coating on it. If there was a clear tape on the display it may have been a factory oversight or supplier oversight and should have been removed before installation.
 
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Old Mar 4, 2026 | 04:48 PM
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I removed the cluster today and determined that it was a film defect on the LCD, not condensation. I removed two layers of adhesive film (both layers were damaged) and then plugged in the cluster to see the fruits of my labor. Ugh, nada.

After more reading, I suspect one of the film layers was a polarizer. It seems that LCDs have this layer as part of the displays overall design. I have some sheet self-adhesive polarizing film on order. We'll see how that works...
 
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Old Mar 4, 2026 | 05:02 PM
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Very interesting. Hope you are successful.
 
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Old Mar 5, 2026 | 08:52 PM
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I found the proper orientation for the sheet polarizer and then applied it to the LCD glass. It worked. I've attached a pic here. Saved about $85.

 
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