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Old 02-14-2008, 05:16 PM   #6
j cAT
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Re: 00' Silverado no heat

Quote:
Originally Posted by bsilverado00
Let's see, I back flushed the heater core, it's not plugged, ran it w/o cap until operating temp, as said earlier replaced thermostat, flush and fill coolant, sporadic heat, all doors on heater box functioning properly, what should I check next??????????
have you had to add coolant ? i can go 2-3yrs before i add a couple of oz. if you have leak this is the only reason i can come up with. does heat return when cap is removed if so this once again could be leak or worse a head gasket and some exhaust gases getting into coolant... i hope not !
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