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Unusual start when using block heater 700

posted by  riverbend on  Thu Nov 20 17:35 CST 2014
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last visit: Wed Oct 22 15:29 CST 2014
[RELATED]

I don't know where your block heater is installed, but is it possible that the heater is warming up the temp sensor for the fuel injection and when the car starts it thinks it is warmer than it is. Once the water circulates a little the sensor realizes how cold it is and compensates with more fuel ?

Going farther out on a limb, when you unplug the heater and wait 15 minutes, the plume of warm water thermosiphons past the sensor and pulls some cooler water in behind it. At that point it acts normally.

Greg





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