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1990 GMC Sierra Heater Core Replacement

Tiny
FINALFANTASY7001
  • MEMBER
  • 1990 GMC SIERRA
  • V8
  • 4WD
  • AUTOMATIC
  • 342,000 MILES
Im trying to change my heater core for my 5.7 liter k1500 but my boss wont take the time to help me. (I work in an auto shop haha, trainee).

so when I take the 2 hoses out of it from the firewall I dont know where to go from there. I see a compartment adjacent to my blower motor casing inside my truck but I really dont know where to go from here cuz ive never done this job before.
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Thursday, July 17th, 2008 AT 7:34 AM

1 Reply

Tiny
FINALFANTASY7001
  • MEMBER
  • 5 POSTS
Never mind guys I managed to figure it out. I tell ya though those pipes are a PAIN to get back through the compartment. Musta taken me like 20 minutes just for that part lol
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Friday, July 18th, 2008 AT 11:19 PM

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