2013 A/C Issue - Subaru Outback - Subaru Outback Forums
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post #1 of 21 (permalink) Old 04-19-2017, 04:47 AM Thread Starter
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2013 A/C Issue

So, I've got the weird problem...

My wife's 2.5 is a 2013 that had its short block replaced.

The other day I was driving it and it was blowing warm air, even though the temp was set to 61 degrees.

As the day went on, the temp went up to 89F and the A/C was intermittent.

Symptoms were:

- blows hot air some of the time (actually hotter than the air outside)
- intermittently blows cold air
- seems to do better at high speeds
- at lower speeds it seems to do better if the attitude of the car changes (angle the nose of the car is at)

What they heck would cause this?

GB

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post #2 of 21 (permalink) Old 04-19-2017, 05:47 AM
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Sounds like a heater control valve. Shuts down coolant to the heater core when the AC is on.

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post #3 of 21 (permalink) Old 04-19-2017, 10:09 AM
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I'd be concerned you havemarginally low refrigerant in the a/c system, an intermittent radiator fan, or maybe slipping a/c belt(seems unlikely)

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post #4 of 21 (permalink) Old 04-19-2017, 11:33 AM
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One simple possibility - make sure your radiator fans are running. I posted here a while ago that when I had my timing belt replaced, the shop at the dealership forgot to reattach the electrical connectors for the fans. I didn't notice it until the weather heated up. I had cooling when the car was moving at a reasonable speed (air moving through the radiator) but no AC when the car was stationary.
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post #5 of 21 (permalink) Old 04-19-2017, 12:41 PM
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You need to have AC performance checked by putting on a set of gauges. Put the AC on recirculating with the fan on the highest setting and note the pressures of the high side and the low side and report back. Also at the same time measure the temperature of the air coming out of the drivers AC air vent. It is best to do this with the interior car cool...not after parked in the sun.

More than likely the system is low on charge due to a leak but before just cramming in some freon and possibly overcharging the system proper diagnostics are needed. If you are not familiar with AC systems, visit a professional...it could save you money in the long run.
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post #6 of 21 (permalink) Old 04-19-2017, 03:18 PM
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^^ What he said. Low refrigerant is always the first suspect. But your description could also point to the early stages of compressor failure.
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post #7 of 21 (permalink) Old 04-19-2017, 03:32 PM
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not sure about the newer models, but some of this might help; DIY A/C Air Conditioning leak refrigerant repair for $5 or less/15 minutes or less

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post #8 of 21 (permalink) Old 04-19-2017, 04:36 PM Thread Starter
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Well, the car is under warranty, until the fall.... sooooooo.... it's a dealer visit. Man, they are a PITA to deal with.

The topped it off once already, and we're supposed to have filled it with UV dye, but I can't see a darned thing having leaked anywhere.

So they either lied about putting the die in, or there is no leak.

I did note that it has very cold air and hot air at the oddest of times. Sorta like it operating in reverse of how it should normally... cold air when set to hot, hot air when set to cold, and then no cold air at times either.

This AM my wife reports the heat was not working.

Any additional thoughts?
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post #9 of 21 (permalink) Old 04-19-2017, 11:46 PM
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blend door problem or maybe a wonky cabin themostat issue.

if you feel truly hot (not just just 'lack of refrigerated air') air, like when heat is selected in a functioning car, the heater coil is always hot so, if a blend door is stuck or misbehaving, hot air is right there.

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post #10 of 21 (permalink) Old 04-20-2017, 11:48 PM
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Not sure if the GB is Glen Burnie in MD but if the dealer doesn't satisfy your needs, I live in Pasadena MD and don't mind messing around with other folks cars. I have gauges and an IR light to check for leaks. Cost: Lunch.


Set the Wayback machine to the year 2000 Sherman... when Little Red was problem free.
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