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Old 09-24-2008, 11:09 PM   #1
rcbildr
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Join Date: Sep 2000
Location: Gold Bar, WA
Posts: 1,216
84 Suburban Heater Issues

I've been doing a little work on my brother's 84 3/4 ton 2wd Burb. The heater isn't working quite right and I'm not quite sure what to take apart. The problem I have is when the control is set to defrost, air is still blowing out the vents in the dash and a little is blowing out the defroster vents. It is an AC truck and I'm pretty sure it is getting good vacuum. Where is the part I need to check? I tried searching, but didn't really find anything. Any help will be greatly appreciated. Thanks!
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My Projects:
1960 GMC 1/2ton with 305 V6 (daily driver)
1963 Chevy 1/2ton 2wd...converting to 4x4
1967 Suburban 1/2ton 2wd

My Girlfriends Projects
1985 Chevy Suburban 3/4ton 4x4 with 6.2L diesel, 4" lift, converted to TH-400, Warn Premium manual hubs, & Wildcat 315/75/R16 tires. (daily driver)
1978 Camaro Type LT with a Marine 350 & vortec heads, Rochester Carb, & roller cam
1978 Camaro Z28
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