Question about Nissan Sentra
There is a control valve under the hood. There should be 2 water lines that connect from the engine back tot eh firewall. They are about 3/4" in diameter and normally on the top one there is a valve that is either vacuum, wire or electrically controlled. If that valve doesn't open you have no heat. Since it is winter and you may want to fix the heat now and worry about fixing that valve later you can remove that and replace it with a piece or straight pipe. If that valve is working correctly the problem maybe your thermostat not opening or your water pump not circulating correctly however in most cases if either of those was the problem the vehicle will be overheating.
Posted on Jan 03, 2011
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Posted on Jan 02, 2017
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