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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Intermitent Tach and Voltmeter After GearVendors Install

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Old Mar 11, 2021 | 09:00 PM
  #1  
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RAY1986F150
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From: Vine Grove KY
Intermitent Tach and Voltmeter After GearVendors Install

1988 F250 7.3 IDI C6 4.10s with a Gearvendors unit. 93,000 miles. Rust free.

I just did a gear vendors install.

Tach and voltmeter worked perfectly before.

Gear vendors unit uses a fuse tap for the 12v+ switched.

I pushed on the fuse panel when installing the fuse tap.

Now my tach and voltmeter sometimes dont work. If its not working all I have to do is push on the fuse panel and it comes back to life. Nothing looks loose.

Anyone seen this before? Advice on where to start?


 
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Old Mar 12, 2021 | 07:14 AM
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This may or may not be relevant.

When trying to get my power point to work I discovered that the fuse retainer/holder in the fuse block had overheated so many times that the plastic had fatigued.

When pushing the fuse into the block, it pushed the retainer out & the blade did not split the fingers of the retainer that holds the individual legs of the fuse.

I had to release the block, get my hand & finger behind it & support the retainer before pushing the fuse in.
 
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Old Mar 12, 2021 | 07:43 AM
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RAY1986F150
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From: Vine Grove KY
I guess ill just have to get in the dash and find something thats loose. All the fuse panel looks brand new. Nothing looks like it ever got hot.
 
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Old Mar 12, 2021 | 09:23 AM
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Scndsin
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Don't know how the 88 is made/mounted, but my 94 does not come free easy & where this presented was on back side where you couldn't see.

But you could turn raw the tendons on the back of one's hand holding the connector while plugging in replacement fuse from the front.

What circuit is the GV switched pwr tapped into?
 
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