2003 Nissan Sentra "truck heater blows cold" Questions

Question about Nissan Sentra

Heater blowing cold air only

heater blowing cold air only. changed the water pump to try and solve over heating, that worked but heater still blowing cold check the heating core or radiator for clogging or leaks

Question about Nissan Sentra

1 Answer

2003 nissan sentra is blowing cold air i changed thermostat stillblowing cold air i did notice that heater core hoses are both cold car is not overheating

...cold air i did notice that heater core hoses are both cold car is not overheating remove both hoses from engine that passes through firewall to heater. put a stiff piece of wire in the hole and make ...

Question about Nissan Sentra

3 Answers

Heater blowing cold air

heater blowing cold air 2005 nissan sentra blowing cold air. No leaks on floorboard, coolant level is ok and is clean, the air seems to have no heat at all in it. No indication of air pockets in ...

Question about Nissan Sentra

1 Answer

2005 nissan sentra 1.8 overheats and heater blows hot air in park but when put in drive it blows cold air have repalce the thermostat

...overheats and heater blows hot air in park but when put in drive it blows cold air have repalce the thermostat Might try a reverse flush of the cooling system. Might reverse flush the heater core

Question about Nissan Sentra

1 Answer

I have a 2002 Nissan

...heater still blows cold air . you may have a problem with heater box. your air/mix door may have an issue. feel the knobs on the control unit. if the cold/heat know feels kinda funny from the other ...

Question about Nissan Sentra

1 Answer

How to bleed the coolant system on a nissan 2003 sentra. Overheating and heater will blow cold air after a km of driving and when making a right turn the guege will indicate overheating and goes back

...heater will blow cold air after a km of driving and when making a right turn the guege will indicate overheating and goes back 2003 nissan sentra , when coolant is hot I can feel the upper hose hot ...

Question about Nissan Sentra

1 Answer

2005 nissan sentra 1.8 se has cold air blowing from inside vents with temp select switch set on the HOT position. What could be the cause of this problem?

...cold with heater select switch dialed up to HOT. Temp difference on heater supply/return hoses shows heat exchange is occurring but car interior remains cold. Antifreeze level in radiator and ...

Question about Nissan Sentra

1 Answer

I have an 1996 Nissan Sentra GXE i live in ND and

...heater only blows luke warm air while at full operating temperature. I replaced the thermostat and flushed the heater core which seemed clean. Refilled the cooling system with fresh coolant and still ...

Question about Nissan Sentra

4 Answers

Heater blowing cold air

blows cold air from the heater. Coolant not circulating in engine. Lower hose stays cool to touch. Both heater hoses cold. Changed thermostat - didn't fix it. Coolant not leaking or dirty. None in oil

Question about Nissan Sentra

1 Answer

1996 nissan sentra overheating

...heater was blowing cold air, then started overheating....put water in the radiator heater is blowing hot again but not sure if my water pump is going out or if my head gasket is about to give...what ...