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2003 Chevrolet Blazer LS 4.3L Heater Core
Posted to GM Engine on 3/27/2011 47 Replies

i have a s10 blazer with the 4.3 and the heater core is blocked. came in for no heat i found the heater core plugged and was wondering if there were anything i could use to break up the gelled coolant or is the heater just done for. has gm or anyone else found...

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  Related Documents & Media  2003 Chevrolet Blazer LS

 
Message Closed w/FIX

car Vehicle Data

2003 Chevrolet Blazer LS

VIN 1GNCS18X93
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedHeater Core
ConditionsBlocked
Misc.Blockage in Cooling System
Message Closed w/FIX

car Vehicle Data

2003 Chevrolet Blazer LS

VIN 1GNCS18X93
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedHeater Core
ConditionsBlocked
Misc.Blockage in Cooling System