where are the connections for the rear a/c lines located in the engine compartment on - Chevy Traverse Forum: Chevrolet Traverse Forum
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post #1 of 11 (permalink) Old 07-09-2019, 02:58 PM Thread Starter
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Question where are the connections for the rear a/c lines located in the engine compartment on

where are the connections for the rear a/c lines located in the engine compartment on a 2010 traverse, I was told that I need to replace them because of "pin hole" leaks found by the dealer. I just want to make sure that I'm not being led down the rabbit hole.

It appears to me that they are towards the back, near the top of the firewall. I'm looking at the quote they are giving me to fix it and it seems quite high at $2800.
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post #2 of 11 (permalink) Old 07-09-2019, 05:29 PM
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Pinhole leaks in gen1s are usually not in the lines, but in the rear evaporator...and dealer replacement could go $2000+


See pg 4
https://gm-techlink.com//wp-content/uploads/2015/08/GM_TechLink_16_Mid-August_2015.pdf

Current Chevys -'19 Silverado RST;'18 Malibu LT Redline;'18 Traverse Premier Redline<br /><br />Previous&nbsp; Chevys:16 Silverado LT;16 Malibu LT2;'17 Impala;'16 MalibuLT;'15 Camaro LS;'15 Traverse; '13,'12 and '07 Avalanche LTs; '11 Tahoe LT; '13 &'11 Malibu LTs; '08 Trailblazer;'06 Colorado WT..... Chrysler era.....'80 Citation;'75 Impala;'72 Chevelle;'69 Camaro R/T;'65 Impala SS;'62 Nova
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post #3 of 11 (permalink) Old 07-09-2019, 11:04 PM
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The connections are near the firewall. There are 2 ac lines and 2 coolant lines. The reason the estimate is so high is because gm sells you all 4 lines at once even if only 1 is bad.

Like what was said in post #2 it’s unlikely the pin hole is in the line itself. More likely to be a hole in rear evap core. Or even the high pressure return line from the condesor to compressor.

I have diagrams of the ac system front and rear and highlighted them for high and low side. I can post them tomorrow if you like.
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post #4 of 11 (permalink) Old 07-10-2019, 08:32 AM
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Originally Posted by Maqcro View Post
...I have diagrams of the ac system front and rear and highlighted them for high and low side. I can post them tomorrow if you like.

Can you please post the diagrams......I think I'm headed down this rabbit hole also for replacement and would like to DIY it if doesn't require contortionist arm bending. Tools and time I have plenty of.

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post #5 of 11 (permalink) Old 07-11-2019, 12:02 AM
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Quote:
Originally Posted by Maqcro View Post
...I have diagrams of the ac system front and rear and highlighted them for high and low side. I can post them tomorrow if you like.

Can you please post the diagrams......I think I'm headed down this rabbit hole also for replacement and would like to DIY it if doesn't require contortionist arm bending. Tools and time I have plenty of.
Sorry just had a super long 16 hour shift. But here’s what I have on the diagrams
Attached Images
File Type: jpg 12C05A4C-D104-41F0-8165-28DDD96109C9_1562817646926.jpg (305.6 KB, 18 views)
File Type: jpg 978E132C-4999-4666-B060-3E9CBA925FDA_1562817664264.jpg (288.9 KB, 17 views)
File Type: jpg 67B35A89-66A4-4823-8271-34767AF212CD_1562817681020.jpg (376.6 KB, 17 views)
File Type: jpg 3D4A370C-25BF-46C3-A625-879DECBCA1FA_1562817702256.jpg (344.9 KB, 17 views)
File Type: jpg FF74A4B6-029F-40DA-B542-4BFBE547A0DD_1562817720188.jpg (346.2 KB, 17 views)
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post #6 of 11 (permalink) Old 07-11-2019, 12:04 AM
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This is for a FWD traverse. I can’t guarantee the ac lines are the same for AWD.
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post #7 of 11 (permalink) Old 07-11-2019, 10:27 AM
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if you look between the engine and firewall- you will see these




2010 FWD LT1-Gold Mist Metallic- seats 8.
Build Date- July 31, 2009-2nd day of Spring Hill 2010 production.

2013 Equinox 3.6L - 88,000
2010 Traverse 3.6L- 153,000
2003 Trailblazer 4.2L- 181,500
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post #8 of 11 (permalink) Old 07-11-2019, 02:32 PM
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Quote:
Originally Posted by Thomcat View Post
Pinhole leaks in gen1s are usually not in the lines, but in the rear evaporator...and dealer replacement could go $2000+
+1
I had this repair done in my '14 before I traded it. The new evaporator wasn't all that expensive, but since it's the rear one from what I understand a lot of the interior had to come out so the labour is what racks up the bill.

If I remember correctly my bill came to around $1700 CDN so $2800 is extremely high. I would suggest checking with another dealership or a local mechanic that's done one before.

2014 Traverse 2LT AWD
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post #9 of 11 (permalink) Old 07-11-2019, 03:02 PM
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I remember seeing a post from a member- who was going to do all the interior trim removal- then drive the vehicle to shop, to have the work done.

2010 FWD LT1-Gold Mist Metallic- seats 8.
Build Date- July 31, 2009-2nd day of Spring Hill 2010 production.

2013 Equinox 3.6L - 88,000
2010 Traverse 3.6L- 153,000
2003 Trailblazer 4.2L- 181,500
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post #10 of 11 (permalink) Old 07-11-2019, 06:38 PM
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.. But here’s what I have on the diagrams

Many thanks for the picts, those will help alot !!

2016 Traverse LS
Inside always smells from my Scubadiving & Spearfishing gear.
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