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Jake
Jake, Nissan Technician
Category: Nissan
Satisfied Customers: 4068
Experience:  Experienced collision repair technician, Pulaski Tech graduate and DSM hobbyist.
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2005 Primera SX no heat coming from heating ststem or air

Resolved Question:

2005 Primera SX
no heat coming from heating ststem or air conditioning.
fans/motors are running but only blowing cold air.
What is likely fault and where should I look to correct problem?

Gerald
Submitted: 3 years ago.
Category: Nissan
Expert:  Jake replied 3 years ago.

Jake :

Hello there

Jake :

this is generally caused by air trapped in the heater core

Jake :

or a blocked heater core

Jake :

The best thing to do is pull the front of the car on ramps to elevate the front end.

Jake :

place a coolant bucket in place of the radiator cap

Jake :

and add some coolant

Jake :

once the car warms up fully, rev the engine to 2500 RPM's and hold it for a minute

Jake :

do this 3-4 times to get all the air out of the system.

Jake :

then once the system is topped off and no longer bubbling. remove the coolant bucket and replace the cap.

Jake :

when your reving the engine have the heater ON and coming out the vents so you can feel it

Jake :

to see if your getting the trapped air out

Jake :

if this doesn't work, you may need to back flush the heater core, to verify its not clogged

Jake :

and if it turns out NOT to be either of those common things, the last resort would be a faulty air mix door

Jake :

do you have any other questions?

Jake :

hello?

Expert:  Jake replied 3 years ago.

if you need anything else let me know, if not please leave a kind rating.

thanks.

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