Question about 2005 Dodge Grand Caravan
Running temp is 195f so if it reads 212f I think thats OK. make sure the fan is operational above 220f or a/c is on. As long as its not overheating, pushing coolant out to the recovery tank, its OK. there was a computer update (reflash) for these vans. Campaign number 771
Posted on Nov 10, 2010
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Posted on Jan 02, 2017
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Apr 06, 2016 | Cars & Trucks
Jul 23, 2012 | Dodge Caravan Cars & Trucks
The engine coolant temperature sensor provides an input voltage to the PCM. As the coolant temperature varies, the sensor resistance changes resulting in a different input voltage to the PCM.
When the engine is cold, the PCM will demand slightly richer air/fuel mixtures and higher idle speeds until normal operating temperatures are reached.
The engine coolant temperature sensor is also utilized for control of the cooling fan.
Fig. 1: Engine coolant temperature sensor location - 3.3L and 3.8L engines
Check this test procedure:
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