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Old 04-27-2018, 11:07 AM   #1
70GMCer
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AC Firewall Harness?

Trying to remove the AC harness at the firewall.

Before I go pulling on the harness at the firewall, is this a plug that goes into the firewall a socket or is it a fixed point that does not come apart?
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Old 04-27-2018, 12:36 PM   #2
v30crewcab
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Re: AC Firewall Harness?

it goes all the way thru to the box and controls inside.
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Old 04-27-2018, 12:43 PM   #3
gmachinz
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Re: AC Firewall Harness?

That grommets pops out from inside to outside. GM used a moisture sealant barrier so it’ll be tuff at first then it’ll pry out easy. Just use a flatblade to pry under and out on the grommet and it will give way.
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Old 04-27-2018, 01:28 PM   #4
70GMCer
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Re: AC Firewall Harness?

Thanks
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