Re: 1993 chevy Silverado 4.3l xcab c1500 low heat problem
Heater core is prolly plugged. Pull lines off, blow air thru the return side of the core.
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2000 GMC CCSB 454/4L80 6” lift SAS
1999 Chevy CCSB 454/NV4500 6” lift
1999 GMC Yukon 350/4L60 4" SAS
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