Question about Nissan Sentra

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I have a 2006 Nissan Sentra. When the check engine light came on I had it checked out and it came back with the code po128 coolant temp below thermostat regulated temperature. I have been told that my water pump is leaking, could this be part of the problem?

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By the sounds on it it seems like you have a bad sensor and faults wiring to the sensor

Posted on Dec 30, 2010

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Check engine light is on. error reads PO128 and


hi 128 is coolant temp below regulating temp 405 is










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Showing a engine service soon


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Simply disconnect your battery, turn on the headlight switch for about five to ten minutes, and re-connect the battery. This is pretty simple, but will likely result in you losing your radio presets and perhaps some other small things like that.
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