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Old 02-26-2008, 12:16 AM   #1
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Default Code P0128

Check Engine Light came on this morning so I took it to advance to read the error code. I got a P0128 Coolant Temp Below Thermostat Regulator Temp code. What causes this and how do I fix it?
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Old 02-26-2008, 01:04 AM   #2
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The most common cause is the thermostat. However, also make sure that you aren't low on coolant.
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