Air Conditioning Delete

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

PrairieDrifter

Full Access Member
Joined
Dec 28, 2014
Posts
3,535
Reaction score
4,789
Location
North Dakota
First Name
Mason
Truck Year
84,79,77,70,48
Truck Model
Suburban k10, bonanza k10, c30 C&C, c10, gmc 1/2ton
Engine Size
350, 350, 350, 350, 350
hang on, being my ac compressor is missing entirely, will i not have defrosting capabilities?
You'll have defrost, it just doesn't pull the moisture out of the air like a/c does. That's why cars drip clean water on the ground when the a/c is on, it's pulling moisture out of the air.
 

LocoLocal

Full Access Member
Joined
Sep 18, 2022
Posts
91
Reaction score
127
Location
Just east of West by God
First Name
Rob
Truck Year
1979
Truck Model
C10 Silverado
Engine Size
5.0
There seems to be a ton of dust getting in my cab. I know the windows and doors could use new seals, but this is dust that is under the dash and even behind the plastic over the gauges. The truck has A/C but it's disconnected. I am wondering if there is dust getting in through the disconnected A/C system? Short of buying the a/c delete plate, what else could I do to try and seal it up, if that is the culprit?

As for the ducts - do they all blow heat and A/C? Wondering which ones I can remove if I am not using A/C.

The heat is blowing, but not hot, so I am thinking I need to replace the heater core. I did see @SirRobyn0 write up on that, and am going to check that out.
 

SirRobyn0

Full Access Member
Joined
Dec 6, 2019
Posts
6,749
Reaction score
11,376
Location
In the woods in Western Washington
First Name
Rob
Truck Year
1984
Truck Model
C20
Engine Size
305
There seems to be a ton of dust getting in my cab. I know the windows and doors could use new seals, but this is dust that is under the dash and even behind the plastic over the gauges. The truck has A/C but it's disconnected. I am wondering if there is dust getting in through the disconnected A/C system? Short of buying the a/c delete plate, what else could I do to try and seal it up, if that is the culprit?

As for the ducts - do they all blow heat and A/C? Wondering which ones I can remove if I am not using A/C.

The heat is blowing, but not hot, so I am thinking I need to replace the heater core. I did see @SirRobyn0 write up on that, and am going to check that out.
Please feel free to ask questions about the heat core replacement if you have any and I'll do my best to answer them. Thanks.
 

Powerhouse Ranch

3G Connoisseur
Joined
Jan 6, 2021
Posts
1,461
Reaction score
2,567
Location
PA
First Name
Luke
Truck Year
1980 & 1988
Truck Model
C25 & V15
Engine Size
454 & 350
@Raider L @PrairieDrifter

UPDATE

It's been a while, forgot about this thread. Not sure if you guys saw my posts a bit ago in "What have you done to your square lately?" but I put my AC delete process photos there. I'll reattach them here just for the convenience/future reference.

Ended up having to fab the power steering/ac compressor bracket so it just accommodated the PS pump. I had a non-AC one around to duplicate the best i could. Then i completely removed the plenum on the engine bay side and the heater box on the inside. Did a TON of measurements and patched the hole on the firewall and had to make a new one. Relocated the heater core slots, etc. Bought original period correct used (obviously) heater box (both in-cab and engine side). Bought a new heater core and hoses and such. I also had to replaced the economy controls from AC to just heater. Had to get a heater-only wiring harness. Had to make 1 splice. Painted up the firewall, put some uncoating on it to make it look like factory sealant and ALL GOOD. I used my dad's '76 heater-only cab as a reference piece. At a glance you may think it's original; just how i intended. Hope you guys think so too.

You must be registered for see images attach
You must be registered for see images attach
You must be registered for see images attach
You must be registered for see images attach
You must be registered for see images attach
 

Powerhouse Ranch

3G Connoisseur
Joined
Jan 6, 2021
Posts
1,461
Reaction score
2,567
Location
PA
First Name
Luke
Truck Year
1980 & 1988
Truck Model
C25 & V15
Engine Size
454 & 350
CONTINUED

You must be registered for see images attach
You must be registered for see images attach
You must be registered for see images attach
You must be registered for see images attach
You must be registered for see images attach
 

Powerhouse Ranch

3G Connoisseur
Joined
Jan 6, 2021
Posts
1,461
Reaction score
2,567
Location
PA
First Name
Luke
Truck Year
1980 & 1988
Truck Model
C25 & V15
Engine Size
454 & 350
CONTINUED

And then all said and done, i had pulled every last piece of AC related crap out like it never happened.

You must be registered for see images attach
 

sidschev

Full Access Member
Joined
Oct 2, 2023
Posts
283
Reaction score
503
Location
Arkansas
First Name
sidney
Truck Year
1984
Truck Model
c1500
Engine Size
350
oh man i wish you were closer to me i would take all that off your hands.....
 

ChuckN

Full Access Member
Joined
Nov 8, 2022
Posts
1,047
Reaction score
2,965
Location
Bellinham, WA
First Name
Chad
Truck Year
1981
Truck Model
C10
Engine Size
350
CONTINUED

You must be registered for see images attach
You must be registered for see images attach
You must be registered for see images attach
You must be registered for see images attach
You must be registered for see images attach
You’re speaking my language. This is one of my major to-do projects upcoming. Some of what you had to do, bracketry, etc, was already done when I purchased the truck. It was originally a straight 6 truck, and the engine swap that I inherited with the purchase entailed a 350 with camel hump heads without accessory holes, so that was remedied and all of the a/c stuff was chucked at some point. I just have this eyesore leftover in the engine bay.
You must be registered for see images attach
 

Juggernaut

Full Access Member
Joined
Apr 11, 2021
Posts
204
Reaction score
224
Location
Illinois
First Name
Greg
Truck Year
78
Truck Model
K20
Engine Size
350
Classic industries has an AC delete cover that I used. It replaces that entire AC box under the hood, no welding required
 

LocoLocal

Full Access Member
Joined
Sep 18, 2022
Posts
91
Reaction score
127
Location
Just east of West by God
First Name
Rob
Truck Year
1979
Truck Model
C10 Silverado
Engine Size
5.0
@Powerhouse Ranch did you leave the vents on the inside the same?

My truck had A/C but I am sure it hasn't worked in decades. I pulled all the vents that were (what I thought) "just" for AC on the dash to clean it up a little, but I am wondering if those blew heat as well.

I would love do what you've done. Well, maybe not to the extent of complete removal, but to the extent of converting to heat only controls. The problem is now I'm getting a ton of dust in the cab now that the vents have been removed. Hell, it could be my weatherstripping, too.

I'll start with what @PrairieDrifter has suggested and "make sure the box is sealed good around the firewall and around the evaporator inlet and outlet are sealed well." Hopefully that will solve my dust issue. Then, it's on to converting to heat only controls.
 

Latest posts

Forum statistics

Threads
42,669
Posts
920,278
Members
34,202
Latest member
Diggs816
Top