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Clayso, Master Automobile Technician
Category: Nissan
Satisfied Customers: 880
Experience:  ASE Master Certified Automobile Technician. 30 Years Experience.
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Windshield fogging up, losing anti-freeze, smell anti-freeze

Customer Question

windshield fogging up, losing anti-freeze, smell anti-freeze in cab
JA: How old are the hoses? And have you tested the actual mix of your coolant?
Customer: coolant is straight from the bottle, hoses are original
JA: What year is your Cab?
Customer: 2004
JA: Are you fixing your Cab yourself? What have you tried so far?
Customer: yes, replaced the radiator and thermostat
JA: Anything else you want the mechanic to know before I connect you?
Customer: that's it
Submitted: 1 year ago.
Category: Nissan
Expert:  Clayso replied 1 year ago.

Hi There,
This is Clay, I'm a certified master automobile technician with 30 years of automotive repair and diagnostic experience.

From your description most likely the heater core is leaking. What's the model of this 2004 Nissan?

Let me know.


Expert:  Clayso replied 1 year ago.

All I can really do is speculate with out a model or at least an engine size. You can pinch off the heater hoses on the engine side of the firewall to stop the antifreeze from filling up the HVAC assembly under the dash. Once the heater core is blocked off it would be a good idea to do a Block-Check to make sure there are no exhaust gasses in the cooling system in case the vehicle has been run hot.