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Dan
Dan, ASE Certified Technician
Category: Nissan
Satisfied Customers: 1694
Experience:  Auto Technician
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Front heater is blower much cooler air than the rear heater,

Customer Question

front heater is blower much cooler air than the rear heater
JA: Have you checked the coolant level? Have you checked for a leak in the radiator?
Customer: coolant level is good and no leak
JA: What is the model/year of your Nissan?
Customer: 08 pathfinder
JA: Are you fixing your Pathfinder yourself? What have you tried so far?
Customer: yes, replaced thermostat, jacked up the front of the car and let run with radiator cap off trying to bleed system
JA: Anything else you want the mechanic to know before I connect you?
Customer: not sure at this point
Submitted: 9 months ago.
Category: Nissan
Expert:  Dan replied 9 months ago.

Hello my name is***** am an ASE Master Technician and I am glad to help you with your question.

Expert:  Dan replied 9 months ago.

Your front heater core could be clogged, I would try back flushing the heater core, if that does not work then you will need to replace it.

Expert:  Dan replied 9 months ago.

I can send you the procedure to replace the heater core from the service manual if you want.

Customer: replied 9 months ago.
Is there a chance there could still be air in the system that would cause the front to not blow a hot as the rear?
Expert:  Dan replied 9 months ago.

Yes, air in the system would cause a loss of heat.

Customer: replied 9 months ago.
Should i continue trying to bleed by raising the front of the car and run with the radiator cap off and the resivor cap on? Any better ideas to bleed?
Expert:  Dan replied 9 months ago.

The service manual recommends using an air lift on the cooling system to get the air out of the system, I can send you the steps for bleeding from the service manual if you want.

Expert:  Dan replied 9 months ago.

Hello again Dan here,

I am contacting you because the post has not been closed or rated.

This question is coming up on 7 days which means it will time out and close.

You have already paid to get this question answered, but you have not rated.

Let me help some more. Is there anything else I can help you with?

If I did not give you 5 star service, please let me know what I missed.

Thanks