Question about 2005 Nissan Altima
Have you checked your fuses? thats the first place to start
if no fuse is blown a connection behind the dash may have come loose or the heater core burnt out
unless you like a challenge both are jobs best for a mechanic as it may be a rather lengthy process
Posted on Nov 09, 2010
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Posted on Jan 02, 2017
I live in Alaska and have had the same problem i just added more coolent to the radiator and it warmed up i installed a block heater and i leaked a bit and the coolent level got low and i would have no heat. I tryed to fill just the coolent resivoir and that dident work so i filled the radiator pumb full and that worked!! Hope this helps.
Posted on Jan 18, 2009
It appears we have an Air lock scenario and you will need to perform a system Bleed.
Park the vehicle on level ground, when cold remove coolant filler cap, start engine and leave to idle, turn heater on full and blower to max. When engine reaches operating temperature watch and listen near coolant filler, keep clear as gurgling and hopefully a boil over should occur. Top up with very warm coolant and wait as it may do it again.
Check for heat inside vehicle if warm replace coolant cap but keep an eye on temperature gauge as the ~Air lock may have moved on from heater matrix/core so proceedure needs to be carried out again from COLD.
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Posted on Feb 24, 2009
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.
Posted on Dec 05, 2009
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