Temperature gauge may give incorrect readings on Ford Ranger

Ranger 3.0L and 4.0L
The temperature gauge on the instrument panel may fluctuate and give incorrect readings. If this happens, a new gauge and sender kit should be installed. The sending unit "sends" the information to the gauge.

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Average mileage: 136,463 (110,000–158,507)
5 model years affected: 1993, 1994, 1996, 1999, more2001
6 people reported this problem
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Viewing 1 - 3 of 3 problem details
2001 Ford Ranger 158,507 mi,
Temperature gauge goes to overheat when driving but stays in the middle while idling. Battery runs down after sitting awhile
1999 Ford Ranger 155,000 mi,
Can't figure it out yet
1996 Ford Ranger 122,345 mi,
temperture gage give me wrong reading