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Old 05-13-2011
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Temp gauge acting funny?

Hello all. I just bought a 2001 ford ranger 2.5l auto with 107000 mi. The temp gauge only goes up a 1/4 of the way and seems to fluctuate slightly. Where should the temp gauge normally be when warmed up? Thanks.
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Old 05-14-2011
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normally warmed up it will be about 1/2 to 3/4 between cold and normal, probably a faulty temperature sending unit
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Old 05-14-2011
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Quote:
Originally Posted by vincent714028 View Post
Hello all. I just bought a 2001 ford ranger 2.5l auto with 107000 mi. The temp gauge only goes up a 1/4 of the way and seems to fluctuate slightly. Where should the temp gauge normally be when warmed up? Thanks.
whats the heat like when the temp gauge is at the 1/4 mark...ford temp gauges tend to read on the cool side...my car was exactly like your truck...and slight fluctuation is normal
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Old 05-16-2011
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The heater works great. I replaced the temp sending unit and that wasn't it. It responds better though so I'm still glad I did it. Basically at idle the gauge moves to the halfway mark between hot and cold but then when I get up to speed ( 30-60ish mph) it cools down to about 1/4 up from cold. At that point I still have good heat. I'm thinking thermostat or fan clutch?
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Old 06-12-2011
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Just an insight for this thread. I had this same issue with my truck, I replaced the sensor, redid the whole cooling system. I ended up installing an Autometer engine temp gauge, and the temp is steady at 180F and gets to 210F in very heavy traffic. Meanwhile, the stock gauge will fluctuate.
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Old 06-12-2011
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yeah not sure the idiot gauges from the factory are that great, let alone any of the stock gauges.
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Old 06-14-2011
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I had the same issue with my 97 2.3l and it wound up being the thermostat...
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Old 07-01-2011
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I have a 99 and mine use to do the same thing till my thermostat went completely out but I replaced it and it fixed the problem with the gauge.
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