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A/C discharge line

20K views 11 replies 7 participants last post by  robauto  
#1 ·
Hi All,
Just got the bad news from the repair shop that my 2012 Acadia 3.6 FWD is leaking due to a bad discharge line in A/C system. Mechanic wants $600 to replace hose. I'm pretty mechanically inclined. How difficult is this repair? I know front bumper needs to be removed. Can't find any videos on YouTube. Any other links? Thanks in advance for any info.
 
#2 ·
A/C work can involve specialty equipment and permits to handle refrigerant, depending on the state where you live. Are you experienced enough to work with that properly? Could be better off letting the shop repair the car.
 
#4 ·
#6 ·
I actually had to replace the A/C discharge line in my 2011 Buick Enclave 2 years ago when I dinged it while replacing the radiator.

I bought the line for ~$50 from an OEM seller on eBay (AC Delco 15-34440). The replacement is a little tight, but not too bad at all. Then it is a matter of refilling the refrigerant. A couple of YouTube videos, rental vacuum pump from AutoZone, some gauges from Amazon, and Walmart refrigerant, and it has been cold for the last couple of years.

Not a "no brainer", but if you are mechanically inclined, shouldn't be the toughest repair you will ever make.

Good luck!
 
#7 ·
I had to do this in my 2012 Acadia at 100k mi. Easy job. Directions aren't really needed to remove the bumper. Just find all the screws up top and follow the fender liners for more screws and pop rivets. I got my hose from the dealer. Parts guy knew exactly what I was talking about. Common problem. The GM part number did change from the original. Hopefully that means they have a new manufacturer that doesn't suck.
 
#9 ·
I just did this job 2x in 1 year on my 2011 acadia, as the first replacement hose ac delco 15-34440 from amazon split and leaked after 10 mos. See my write-up on amazon. Others had the same problem. It looks like I will get a refund as I just shipped it back. I went with 4 seasons hose the 2nd time. I did find a video on removing the bumper from A1 auto. google it. Ensure the hose is bad first by using a black light. GM puts dye in at the factory. It is a pretty big job, but if you want to buy equipment and get into ac, this would be the time. I recommend it. Don't forget to put dye back in and include some oil if the hose burst or you discharged quickly. See the shop manual, it recommends 2 oz oil for burst hose. Ensure to do research on the ac evac and charge. I bought the pump, scale (I have 30lb freon) and manifold mastercool gauge set at amazon. I also bought the oil injector. I included a writeup on this site, do a search. All of the other forum inputs above are accurate, so you have alot of good info to work from. Allow about 6 hours for the whole job going slow. The $600 estimate does not seem bad, I thought it was a 800-1000 job. Enjoy.
 
#10 ·
So I know this is a few years old, but I just had to replace my hot gas line today. It was rubbing against the fan shroud and rubbed a hole in it. This will hopefully save someone a lot of time - you don't have to remove the entire bumper. I just pulled the screws from the top, and could pull the grill and upper section of the bumper cover far enough away to get my arm and a 13mm combination wrench down onto the bolt.Put it so the angle of the box end is towards the bolt hole, not away from it. Saved a LOT of time.
 
#12 ·
Sorry, did not check this post in a while, I used 4 seasons ac line 56450. It is the high pressure, compressor to condensor line. After 3 summers, all ok. Hopefully never have to replace again. Not happy with the bad new ac delco line and the fact that this happen at all. Quality was not good in this department. AC lines should go the life of the car or at least 15 years.