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Andy4639 · 12-02-2018, 01:22 PM

It could be several things. Mice and what not they have filled the heater box up with nesting crap and have the heater motor bogged down.
Could be the motor it's self. Quick check is take the lead off the motor and jumper it out to the battery + terminal. If it blows hard then it could be in the levers not adjusted right are the fan switch is bad.

12-02-2018, 01:22 PM	#3
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,936	Re: Blower motor It could be several things. Mice and what not they have filled the heater box up with nesting crap and have the heater motor bogged down. Could be the motor it's self. Quick check is take the lead off the motor and jumper it out to the battery + terminal. If it blows hard then it could be in the levers not adjusted right are the fan switch is bad. __________________ 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.