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?
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99 Ranger 2wd
±240k
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