1990 GMC S15 Q&A

1990 GMC S15 Question: heater core

How do I change heater core ? -
Answer 1
Here is a link to a web site that has very good repair instructions for your vehicle. http://bit.ly/mitchell_repair_manuals_online -
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The heater core under the right side of the dashboard may leak engine coolant which can puddle on the passenge...