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Discussion Starter · #1 ·
I recently replaced my radiator on my 2001 Nissan Nissan Pathfinder SE, after driving the car, I noticed that the heater was blowing cold air. If the car runs long enough, it will blow warm air for about 30 seconds and then go back to blowing cold air.

The fluid levels in the radiator are to the max line and all the hoses were reconnected correctly.

Does anyone have an idea of what the problem is or are there any other trouble shooting tactics to deploy?

Thank you in advance for your help,
-Don
 

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09 Altima 3.5SE 6MT Sedan
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6,365 Posts
Sounds like air in the system. Do you get a gurgle in the dash on cold startup?

To bleed my VQ I used the parking ramp at a local mall after hours. I would park on the steepest uphill part of the ramp. Start car and allow it to warn up in idle. Then I would rev it a few times every 20s or so to about 3000rpm. Worked every time.
 
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