Could have a bad blend that controls both heat and ac
SOURCE: 1996 nissan sentra
Find the big hose that comes out of the top of the radiator and follow
it to the engine and that is where the thermostat is located. My
advice is to be sure to get a factory thermostat and rubber gasket as
it makes installation much easier. I have done it both ways and the
factory one is easier to install.
SOURCE: troubleshooting air conditioner thermostat 1995 nissan pickup hardbody
The thermostat is located where the lower radiator hose goes into the engine. I've had to replace mine, and it took a while to find it. I found the easiest way to get at it is to remove the power steering pump (hoses attached) and set it over to the side to get at the bolts on the thermostat housing.
Good luck!
SOURCE: over heating. no heat from heater
Hello,
You need to replace the Thermostat and gasket very quickly as you are damaging the engine when it overheats. Your thermostat is not opening at all preventing the coolant from reaching the engine, cooling it off and sending the now heated coolant into the heater core to keep you warm. The shaking may or may not go away once this is fixed.
Good Luck!
Rich Lilja
SOURCE: heater blowing cold air
My 05 sentra with 79k miles heat will warm up and then get cold after a mile of driving, we have tried to get the air pocket out, the mechanic stated he thought it could be a blown head gasket, another mechanic said it was a bad heater core. Any advice would be appreciated.
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Also, Engine replaced a few months ago due to this same problem (head gasket blown). This is a new problem that started when it became cold outside. Antifreeze flushed and oil added.
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