GMC Acadia Forum banner

1 - 12 of 12 Posts

·
Registered
Joined
·
5 Posts
Discussion Starter · #1 ·
Has anyone ever installed one of these?
Situation: Garage told me my coolant leaked out because I have a leak in the pipe(s) that run to the rear a/c and parts and labor on the fix I think was estimated at around $2,000. I found a store that sells kits to disconnect the rear a/c line and blot this "block-off" in place, sacrificing rear a/c but only costing roughly $150 including the recharge. The store had instructions for all the other vehicles but not for the 2015- Acadia. I took a chance and bought the kit and took it to my mechanic that works on my other trucks but we couldn't be sure where to put the block in place and whether or not the rear a/c is a separate circuit or if it's all shared after feeling the a/c line T off from where we were tracing it.

Does anyone know if this "fix" method is possible on the 2015 Acadia Denali?

Thanks
 

·
Super Moderator
Joined
·
21,781 Posts
Your other thread about this was removed. Duplicating threads (or posts) won't get you an answer any quicker.
 

·
Registered
Joined
·
1,456 Posts
Yep, duplicate posts are more an irritant than help.
We had this done on our old Grand Caravan, as one of those rear lines blew out on us. Same sort of deal; $1500 or $175 on a beater work-horse van. You might be best skipping your existing mechanic if he can't figure it out, and either going to a GMC dealer or an AC specialist, or just a mechanic who knows (ours was just a "shop").
 
  • Like
Reactions: Allen391

·
Registered
Joined
·
5 Posts
Discussion Starter · #4 ·
Sorry about the duplicate post I wasn't sure which forum was the best for this question.
 

·
Super Moderator
Joined
·
21,781 Posts
FWIW, the rear a/c shares the compressor, condenser, and refrigerant supply with the front one.
 

·
Registered
Joined
·
5 Posts
Discussion Starter · #6 ·
FWIW, the rear a/c shares the compressor, condenser, and refrigerant supply with the front one.
I know it shares the same refrigerant, what I'm not clear on is whether the refrigerant splits into 2 separate channels that cool the front and rear in parallel (where it'd be ok to block off the rear tubes) or if the refrigerant flows in a single circuit (meaning that blocking off the rear tubes would block the front as well). Thoughts?
 

·
Super Moderator
Joined
·
21,781 Posts
I know it shares the same refrigerant, what I'm not clear on is whether the refrigerant splits into 2 separate channels that cool the front and rear in parallel (where it'd be ok to block off the rear tubes) or if the refrigerant flows in a single circuit (meaning that blocking off the rear tubes would block the front as well). Thoughts?
Look for a diagram of hose/line routing in one of the parts sites, or in the service manual.
 

·
Registered
Joined
·
22 Posts
I'm having the same issue on my 14 with only 34k miles. Can you post where you got the block off kit?

Any other details would be greatly appreciated!

Good luck!
 

·
Registered
Joined
·
5 Posts
Discussion Starter · #10 ·
I'm having the same issue on my 14 with only 34k miles. Can you post where you got the block off kit?

Any other details would be greatly appreciated!

Good luck!
I found the kit here Rear AC block kits #1 SUPPLIER/Manufacturer but they don't have instructions for my Acadia and getting to the junction to block it off looks like you need thin 5ft arms.
 

·
Registered
Joined
·
5 Posts
Discussion Starter · #11 ·
Here's the less expensive than $2,000 way to fix it properly and likely where the leak is:

2015 A/C failure at 52,000 niles | GMC Acadia Forum
I also found a flex hose replacement kit for half the cost which my mechanic thinks would be much easier to install. Whether it's the replacement or the block-off it looks like it's going to be a challenge to reach the connection behind the engine under the dash. Not enough room to squeeze a forearm through the space there and it doesn't look like I can reach it from beneath either. We're scratching our heads on how to get at it.
 

·
Registered
Joined
·
82 Posts
Have your mechanic put some dye in and recharge it then look for exactly where the leak is. My bet is where mine was at the right rear wheel or the rear core, neither of which is that difficult to deal with.
 
1 - 12 of 12 Posts
Top