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Tachometer not working properly


86rangerSTX

New Member
Joined
Jan 13, 2024
Messages
3
Reaction score
2
Points
1
Location
Rockaway NJ
Vehicle Year
86
Make / Model
Ford ranger
Transmission
Manual
When I start my truck the rpm gauge instantly jumps up to about 1100 rpm
And from 1100 to 7000 rpm it seems to work properly,

And when I turn the truck back off it goes to 0

I took apart the gauge cluster looking for a bad or corroded connection.
I did find a resistor on the rpm control board that had a crummy connection so I re-soldered it. I cleaned all
The plugs when I put the cluster back in and it did not change a noticeable thing

anyone else have this problem?
 

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