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what could cause a vehicle not to run under normal operating temperature

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Old 05-19-2011, 12:14 AM   #1
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Default what could cause a vehicle not to run under normal operating temperature

so i ran my truck under the OBD2 scanner since my truck has seemed like it were loosing a lil power and gas comsumption went up. i ran the data stream option while truck was at its highest operating temperature and the datastream showed my ECT (engine coolant temp) at 165-170 so thats my problem. but what could cause a temperature to not rise no more since i did replace my thermostat i bought one from autozone i guess your not supposed to buy from there since everyone i know says they always get wrong parts. and i asked for 195 degree thermostat but i dont think i checked if it were an actual 195 maybe i should check other than that what could cause it to not heat up to its normal operating temperature
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Old 05-25-2011, 08:17 AM   #2
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Lots of things, raditor could be stopped up a little,wrong sparkplug range to hot of a plug,the ac could cause it lots of little things.that thermastat if you got a colder one,that cuase your temp problem.
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Old 05-25-2011, 10:11 AM   #3
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Check actual coolant temp with a thermometer, could be your ECT is out of whack and providing incorrect info to computor causing you to run in open loop. Thats not good.
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