cool AC only when idling, warms up when revving

Friendly format provided to inquire about automotive a/c systems.
Archived Forum

Moderators: bohica2xo, Tim, Dougflas, HECAT

httran5
Posts: 3
Joined: Wed Jun 14, 2017 10:30 pm

cool AC only when idling, warms up when revving

Postby httran5 » Wed Jun 14, 2017 10:36 pm

2016 Nissan Rogue S AWD (salvaged). I've had it since February of this year and I just started having problems. I'm going crazy trying to search the web for a solution! The A/C blows cold only at idle but warms up when I revv/accelerate.

At 105°F and idling, it's blowing cold and normal - low pressure line is cold. Also at idle, my low line PSI is 43-48 and high line PSI is 175 (very low from what I'm told).

When I rev my car, it slowly gets warm. Reving the car at 2500-5500 for 1 minute, my low line PSI will shoot up to about 65-70 and not be cold anymore; the high line PSI goes down to about 150.

Compressor clutch is engaged all the way, but I cannot tell if it is slipping at all when I rev (it's definitely still engaged though)...

Just got my car evac'd and recharged by an A/C specialist. Still the same thing. He's not 100% sure what it i but thinks it may be an internal compressor failure. I'm looking for more expert assurance.
Last edited by httran5 on Thu Jun 15, 2017 1:37 pm, edited 4 times in total.
User avatar
Cusser
Posts: 146
Joined: Sun Apr 24, 2016 6:29 am

Re: cool AC only when idling, warms up when revving

Postby Cusser » Thu Jun 15, 2017 6:36 am

Let me guess, since you failed to provide important information:

You have a vehicle correct? Ask the kid next door what year, what model, etc., and post that, might help someone actually help you.
User avatar
bohica2xo
Posts: 169
Joined: Wed May 11, 2016 4:12 pm
Location: Las Vegas, NV

Re: cool AC only when idling, warms up when revving

Postby bohica2xo » Thu Jun 15, 2017 8:24 am

Aw come on Cusser - we are supposed to use the crystal ball Tim sells! Did you not buy one yet?

A quick look says it is a 1984 Lada, with the infamous Russian copy of the Wing Cell compressor. It most likely has a cracked vane, and is low on pressure.
httran5
Posts: 3
Joined: Wed Jun 14, 2017 10:30 pm

Re: cool AC only when idling, warms up when revving

Postby httran5 » Thu Jun 15, 2017 1:11 pm

Thought I was being super detailed but I guess I overlooked at the basic stuff. I edited my post. :)
User avatar
bohica2xo
Posts: 169
Joined: Wed May 11, 2016 4:12 pm
Location: Las Vegas, NV

Re: cool AC only when idling, warms up when revving

Postby bohica2xo » Thu Jun 15, 2017 3:45 pm

Recover the system & weigh it - probably low on charge.
httran5
Posts: 3
Joined: Wed Jun 14, 2017 10:30 pm

Re: cool AC only when idling, warms up when revving

Postby httran5 » Thu Jun 15, 2017 4:16 pm

Even though it just got recharged?
anderson0220
Posts: 3
Joined: Fri Jun 23, 2017 9:57 am

Re: cool AC only when idling, warms up when revving

Postby anderson0220 » Fri Jun 23, 2017 10:09 am

Cusser wrote:Let me guess, since you failed to provide important information:

You have a vehicle correct? Ask the kid next door what year, what model, etc., and post that, might help someone actually help you.


Aww.. That's rude? Lol. But she's right. A little bit details will help. ;)

Return to “Automotive Air Conditioning Forum”