Heat on in summer = no good ! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Cliff · 07-10-2004, 02:34 PM

I have a 1972 Chevy 1/2 ton pickup, 350/700r4 with a 4 core rad and with my fan for the heat off i am still getting a flow of warm air into my cab through the vents. Is there a way I can shut off the heat, by means of not allowing water into the heater core for the summer months without hurting the engine or anything. I am running at a cool 130 degrees but am sweating due to the heat in my cab. thanks everyone. CLIFF

mtdave2 · 07-10-2004, 02:48 PM

just go to the hardware store and get a valve, like the water spicket on you home. they make one that is straight it works better. just cut the line comming from the engine to the heater core. works great

neonlarry · 07-10-2004, 04:03 PM

Do you have A/C, reason I'm asking is A/C trucks have a vacuum operated valve on the heater plumbing.

Cliff · 07-10-2004, 04:20 PM

yes i do have AC. however i put a valve inline and it worked WONDERFUL no more hot air cooking me at redlights and such. my AC is not hooked up. thank you guys, and gals. for the help

Cliff

07-10-2004, 02:34 PM	#1
Cliff Registered User Join Date: Dec 1999 Location: Pittsburgh PA Posts: 291	Heat on in summer = no good ! I have a 1972 Chevy 1/2 ton pickup, 350/700r4 with a 4 core rad and with my fan for the heat off i am still getting a flow of warm air into my cab through the vents. Is there a way I can shut off the heat, by means of not allowing water into the heater core for the summer months without hurting the engine or anything. I am running at a cool 130 degrees but am sweating due to the heat in my cab. thanks everyone. CLIFF __________________ 1972 Custom deluxe 305/350 C/10 8-foot bed with 1/4 inch diamond plate steel bed floor.

07-10-2004, 02:48 PM	#2
mtdave2 newly minted old timer Join Date: Dec 1999 Location: Hudson WI Posts: 3,508	just go to the hardware store and get a valve, like the water spicket on you home. they make one that is straight it works better. just cut the line comming from the engine to the heater core. works great __________________ ____________________________________________ 72 c20 longhorn 65k org miles and counting! 69 k10 Suburban

07-10-2004, 04:03 PM	#3
neonlarry Registered User Join Date: Feb 2002 Location: Vacaville, CA Posts: 2,746	Do you have A/C, reason I'm asking is A/C trucks have a vacuum operated valve on the heater plumbing. __________________ 70 C/10 Light Red 350/TH350, HEI, Duals w/40 series Flows, 91 seat, LED taillights 99 Pontiac S/C GTP, SLP Ram Air hood, GMPP Konis & springs 95 Neon ACR, MP PCM, AFX UDP, 3.0 CAI

07-10-2004, 04:20 PM	#4
Cliff Registered User Join Date: Dec 1999 Location: Pittsburgh PA Posts: 291	yes i do have AC. however i put a valve inline and it worked WONDERFUL no more hot air cooking me at redlights and such. my AC is not hooked up. thank you guys, and gals. for the help Cliff __________________ 1972 Custom deluxe 305/350 C/10 8-foot bed with 1/4 inch diamond plate steel bed floor.



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