The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post

c10noob · 11-19-2014, 02:40 PM

Hey guys I have a 70gmc c15 that isn't putting out any heat, the blower works fine but when I slide the heat lever over there's no change. Where do I begin to try and diagnose this? Hopefully there's a way to diagnose so I don't have to start taking parts off for no reason, from the bit of research I've done that seems to be a pain

Thanks!

11-19-2014, 02:40 PM	#1
c10noob Registered User Join Date: Oct 2014 Location: oakley, ca Posts: 23	How do I diagnose my heater? Hey guys I have a 70gmc c15 that isn't putting out any heat, the blower works fine but when I slide the heat lever over there's no change. Where do I begin to try and diagnose this? Hopefully there's a way to diagnose so I don't have to start taking parts off for no reason, from the bit of research I've done that seems to be a pain Thanks!