Heater problems
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Heating system not hot 
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Nissan Titan 2012 Titan Heavy Metal Chrome 5.7 108000 miles
The heat is not working AC works but not heat. Blows air won't get hot
1 report
DA
Look into the heater control valve on at the top passenger side firewall in the engine bay
Vote helpfulCA
I will look for it. Is it a valve that can be opened and closed manually?
Vote helpfulDA
@Cam shaftIts a computer controlled part its what was wrong with mine I thought it might have been the heater core but after some research it was not the part I replaced it with now makes a ticking noise so I'm assuming its got some bad gears or something in it but it is currently working
Vote helpfulCA
@DanHey Dan I finally got to that heat exchange R&R and u were spot on man. Greatly appreciated, and just in time for the only week it gets cold enough for me to need it out of yr.
Vote helpfulBest answer (according to Cam shaft)
CA
Heat exchange needed to be replaced
Vote helpful
CommentOverheating
Nissan Titan 2010 Titan 210000 miles
Stays cool till u stop and idle replaced thermostat waterpump radiator fanshroud radiator cap and reservoir
2 reports
Overheating i changed the engine i removed the thermostat radiator is clean the water level is the same… still only the water pump and the mecanicien said the water pump is working properly (altima 2009 mileage 210K)
CommentHeater problems
Nissan Titan 2006 Se 180880 miles
Heater won’t work inside the cab. The dials all work but won’t heat the cab of the truck.
3 reports
lightwarrior from United States 2 years ago
blower for heater came on weak and eventually stopped . Hit a cold spell of 10 degrees and of course that is when it stopped working . Checking fuses and for wiring issues first .
CommentMy titan doesn’t want to blow heat out.
Nissan Titan 2009 5.6 296897 miles
My heater won’t blow heat out and it’s nothing but cold air. I already replaced the heater control valve and still nothing. What fuse do I look for or what else can I do to make this issue stop?
1 report
LayzeeRyder from United States 3 months ago
It very well could be the air mix door motor. When you turn the ignition on listen for a popping or clicking sound from behind the dash, that could be the actuator binding as its trying to operate.
Take out the heater control valve, use small screwdriver turn valve 1/4 turn clockwise. Leave control valve out. Mine works fine like this
CommentProblems with a Titan? Share them
