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Andy4639 · 12-03-2009, 12:12 AM

Do you have a manual valve inline with the heater hoses by chance? Check the vacum valve as well. Check the heater box inside the truck once you get it up and running. The outer black surface should be warm if not you ant pumping through the core for some reason.
Make sure the cables didn't pop off the tit's and they are just moving back and forth without doing anything.

12-03-2009, 12:12 AM	#5
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,945	Re: heater question Do you have a manual valve inline with the heater hoses by chance? Check the vacum valve as well. Check the heater box inside the truck once you get it up and running. The outer black surface should be warm if not you ant pumping through the core for some reason. Make sure the cables didn't pop off the tit's and they are just moving back and forth without doing anything. __________________ 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.