Chevy Suburban
Heater Cores and Blower Fans
GMC Suburban
Ford F-150

How do you change a heater core on a 1989 half ton 2 wheel drive 5.7 engine GMC Suburban?


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The heater core is under the hood high on the passenger side fire wall. Remove the wire connection, unbolt it from the firewall and pull it out (4 to 6 bolts). Sometimes they can bee tricky if there are alot of parts around it.