Normal Operating Temperature?
99 Ranger 2.5. Recently have had problems with the engine not reaching full operating temperature until reaching higher rpm while driving, and heater..well not so hot. Flushed system and changed thermostat and heater seems to work as should.
I usually like to crank the truck and let warm up a little before taking off but it seems that the engine temperature still does not reach the full operating temperature until engine is at a higher rpm. On a cold morning the needle stays at or below the first cold mark on the gauge, until the engine is slightly revved. Once revved and/or going down the road, the temp hands rises almost instantly to normal (a little below half the full temp scale). Is this a normal temperature change or should the engine reach full operating temperature by just sitting and idling? |
It is pretty normal. What temp stat did you use?
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& what brand? lol
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192°F Motorcraft.
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---------- did you clean off the temp sensor & sender? |
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Sensor and Sender? I did notice two sensors and/or sensors mounted to the thermostat housing. I cleaned the housing but did not remove the sensors and clean if this is what you mean.
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note: be careful cause i cracked my housing when reinstalling :shot: lol |
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Might try that. Is there another temp sensor or sender mounted to the engine block or are these the only ones?
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Heats gets warm before driving and very hot when driving.
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Put some cardboard over the radiator. These trucks run cool. |
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"warm before driving"...and temp hand at or below the cold mark. And hotter while driving and temp hand raises to normal reading. ±61°F here now. Just cranked truck. Took about 10-15 minutes to reach the cold mark on the gauge. Heater blowing warm at that point. Rev engine a little bit and blowing hotter air, and temp hand rises a little, still not to normal level.
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