AC performance, how is yours? - Ford Transit USA Forum
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post #1 of 34 (permalink) Old 06-16-2016, 12:23:PM Thread Starter
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AC performance, how is yours?

My AC doesn't seem to do very well. My 05 suburban always seemed to do a really good job. Today I found a piece of wire snagged by the rear axle. It was not from the van just a piece of road debris with no damage caused. While I was under there I happened to look at the rear ac hose connection. It appears to have a light coating of oil. I used a cfc/hfc sniffer to check it and got a light hit around the block. I then tried soap bubbles but didn't get anything conclusive. I checked the numbers after that

Running for 10 minutes at idle I had recently returned from a trip

Outside temp 84f
Interior temp 73.9f
Center vent 61.1f
Grill inlet temp 82.9f

low side pressure was 46 psi

So would I be nitpicking to take it in to the dealer?
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post #2 of 34 (permalink) Old 06-16-2016, 03:59:PM
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I only have less than 200 miles, but so far I would say that the A/C on my transit wagon does not work very well at all compared to my Econoline Clubwagon. I realize that the interior volume is much more, probably double, but the A/C is loud at maximum and takes a long time to cool the vehicle. I don't have test numbers but driving around town doing my normal errands on my typical routes I would say it takes 3-5 times longer to cool the vehicle than my old van did.

The poor A/C performance and wind noise at the door seal are on my list of things to have the dealer check.
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post #3 of 34 (permalink) Old 06-16-2016, 05:22:PM
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I agree meldog21 and Lovemysan. My AC works great if it is not that hot outside. But now that it is in the 90s it does not work very well. I just commented to a passenger that when I get my first oil change, I am going to get them to check the AC. It does not blow as cold as it should in my opinion.

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post #4 of 34 (permalink) Old 06-16-2016, 06:50:PM
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We live in Vegas and the AC doesn't really cut it. I bought some Thinsulate insulation from a forum member to insulate the roof above the headliner. Hopefully that will help things.

2015 350 XLT 3.5L 148" LR 12 passenger
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post #5 of 34 (permalink) Old 06-16-2016, 08:55:PM
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Here in Florida, I am less than pleased with the performance. Window tint helped a little.
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post #6 of 34 (permalink) Old 06-16-2016, 08:56:PM
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The AC in my cargo van is ... adequate. Definitely not what I had in older vehicles, including the Econolines I drove at various companies.

However, NONE of the newer vehicles I've driven recently cool like the older ones did! I just assumed they were putting lower-capacity systems in to squeeze out a bit more MPG and lower weight.

Adding insulation to the van has definitely helped it to get and stay cooler as the drive goes along, it just takes a while to get there. I need to do something about the windshield though, as others have said the solar heating from that windshield is intense. I hate the idea of the dark tint across the top, maybe one of the IR/UV blocking clear films would help.

Adding the MaxxAir fan has also helped, leaving it open - even with the fan off - keeps the max temp while parked lower. Leaving it open (again no fan) also helps the AC system, it seems to move a lot more air when it's open than when it's closed. The van must be well sealed!

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post #7 of 34 (permalink) Old 06-16-2016, 10:35:PM
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I worked at a custom refrigerator/freezer company when I was in HS & learned the care & feeding of air conditioners.

Every car I've ever owned with AC was able to cool below 40F at the "Center vent" after my TLC. Some vehicle AC unit's low temp control is a Frost Switch! As cold as it can get w/o clogging up with ice.

Quote:
Originally Posted by Lovemysan View Post
Center vent 61.1f
My Club Wagon chills below 40F this week with Heat Index over 100F. It didn't when I first got it, but the only fault I found was a legal pad size piece of paper plastered over the condenser. For decades I've kept thermometers in my dash Center vents.

IMO "61.1f" is inadequate.
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Last edited by Tourneo; 06-16-2016 at 10:37:PM.
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post #8 of 34 (permalink) Old 06-16-2016, 11:58:PM
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Quote:
Originally Posted by Tourneo View Post
I worked at a custom refrigerator/freezer company when I was in HS & learned the care & feeding of air conditioners.

Every car I've ever owned with AC was able to cool below 40F at the "Center vent" after my TLC. Some vehicle AC unit's low temp control is a Frost Switch! As cold as it can get w/o clogging up with ice.



My Club Wagon chills below 40F this week with Heat Index over 100F. It didn't when I first got it, but the only fault I found was a legal pad size piece of paper plastered over the condenser. For decades I've kept thermometers in my dash Center vents.

IMO "61.1f" is inadequate.
My 350 XLT mr 12 pass lwb 3.7L engine with rear air works good here in Arkansas it just takes awhile to cool off all that room.
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post #9 of 34 (permalink) Old 06-17-2016, 12:23:AM
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I'm the only one in my van, and I also have a partition...so the AC actually feels just fine. It seems quite similar to the AC in my '04 F-150 in regards to temp.

Sixty degrees is indeed too warm...you should have it checked.
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post #10 of 34 (permalink) Old 06-17-2016, 12:27:AM
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this brings up a question? what refrigerant are they using?R 1234yf is the latest replacement for 134a. If your suction pressure is 46 deg the coil temp is about 46 deg on a 1234yf p/t chart. add 10 deg for air temp ballpark.

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