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2002 Sierra Heater Problems.... Help Please


JohnnyRazorhead

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Posted

I have a 2002 sierra Z71 with a V6. The heater only blows cold air.

All fuses check out good. Core is not leaking. I pulled heater hoses

under hood and circulated water thru core both directions. Water

flowed good and clean. What do I do now?

Posted
get it scanned and diag'd properly

 

 

lol you crack me up....to the OP does the truck run cold?

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