The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Heater coolant diverter and LS water pump, huh??

Andy4639 · 11-04-2015, 08:49 AM

I don't have the fancy shut off valve I just installed a manual shut off in the heater core line. It doesn't hurt a thing. I can't see how this can hurt anything other than your AC outlet temperatures. Which is why I installed the valve in the first place. If your vacuum valve isn't working like it should be then your AC temps suffer. A quick feel of the heater box inside the truck with it running and AC on will tell the story. It should be cool to the touch if any hot water is getting through your AC isn't cooling like it should.

11-04-2015, 08:49 AM	#13
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,936	Re: Heater coolant diverter and LS water pump, huh?? I don't have the fancy shut off valve I just installed a manual shut off in the heater core line. It doesn't hurt a thing. I can't see how this can hurt anything other than your AC outlet temperatures. Which is why I installed the valve in the first place. If your vacuum valve isn't working like it should be then your AC temps suffer. A quick feel of the heater box inside the truck with it running and AC on will tell the story. It should be cool to the touch if any hot water is getting through your AC isn't cooling like it should. __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.