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Tim Mohr
Tim Mohr, ASE MASTER TECH
Category: Nissan
Satisfied Customers: 560
Experience:  30 YRS EXPERIENCE, FOREIGN AND DOMESTIC, GAS AND DEISEL
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My 350Z ac is blowing hot air. The line is fully charged and

Customer Question

My 350Z ac is blowing hot air. The line is fully charged and replaced the dual fans since one wasn't working. Am I missing something?
JA: Have you checked the coolant level? Have you checked the hoses for leaks?
Customer: Yes. The coolant is at normal levels
JA: What year is your 350Z?
Customer: 2004
JA: Are you fixing your 350Z yourself? What have you tried so far?
Customer: Ya. I've been working on it. Originally I thought the issue was a result of the dual fans Thinking the cabin sensor
JA: Anything else you want the mechanic to know before I connect you?
Customer: No that covers it
Submitted: 2 months ago.
Category: Nissan
Expert:  david craig replied 2 months ago.

Hi Im David. thanks for visiting the site. how do you know the system is fully charged?

Customer: replied 2 months ago.
I checked the pressure on the line. Any other suggestions?
Expert:  david craig replied 2 months ago.

how did you check the pressure on the lines??? what was the high side reading and what was the low side reading?

Expert:  david craig replied 2 months ago.

is the compressor kicking on? is it cycling? is the condenser fan turning on as soon as the compressor engages?

Customer: replied 2 months ago.
The compressor and dual fans come on when I turn the ac on. I'll get the readings from both sides this evening and report back.
Expert:  david craig replied 2 months ago.

ok. lets do this. sit in the car. turn the key on. not start. operate the temp select from cold to hot and back to cold slowly and listen to see if you can hear any actuators moving behind the dash

Customer: replied 2 months ago.
Ok. I'll check.
Expert:  david craig replied 2 months ago.

let me know

Customer: replied 2 months ago.
the actuators are kicking in as a I move the dial from cold to hot
Customer: replied 2 months ago.
I can hear them as I move the dial from cold to hot
Expert:  david craig replied 2 months ago.

ok

Expert:  david craig replied 2 months ago.

were you able ot get the high and low side pressures?

Customer: replied 2 months ago.
I didn't get a chance to check the h/l pressusre, but I circle back with the readings this evening.
Expert:  david craig replied 2 months ago.

ok man

Expert:  david craig replied 2 months ago.

checking in to see how its going?

Customer: replied 2 months ago.
checked the low pressure today, it was running at 40.
Expert:  david craig replied 2 months ago.

I need to know both pressures. put a manifold gauge set on the car and let me know the low side AND high side pressures

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