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#Ac causing surging idle

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 Post subject: Ac causing surging idle
PostPosted: Sun Aug 05, 2018 4:01 am 
First Gear
Joined: Sat Oct 18, 2014 8:07 am
Posts: 54
Location: Chehalis, WA
So I just developed a very odd problem and I’m hoping someone can lead me in the right direction. When my car is in park with the ac on, it idles super smooth. Once I put the car in drive, however, the idle becomes EXTREMELY rough, to the point of almost dying. The Ac still blows cold while this is happening. I had my girlfriend shift my car so that way I could watch what was happening under the hood, and I could visibly see the compressor rapidly turning on and off while this was happening. Is my compressor going bad, or is this a undercharge type of problem?


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 Post subject: Re: Ac causing surging idle
PostPosted: Tue Aug 07, 2018 5:40 pm 
Site Admin
Site Admin
Joined: Tue Oct 15, 2002 11:37 am
Posts: 27313
Location: Houston, Tx
You really need to see the pressures in the AC system with a set of gauges to know what's going on.

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surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
1997 Impreza OBS

If you need to get a hold of me please email me rather then pm


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