1996 Chevrolet Blazer Heater Not Warm

1996 CHEVROLET TRUCK
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APILKINTON
  • MEMBER
  • 1 POST
[b] I recently had issues with my heater not getting warm. I have replaced water pump due to it leaking but since then, now my heater blower works fine but doesn't blow warm air. I have also replaced thermostat since this problem started but still didn't fix it. Does anyone know where I need to go next step as to fixing the problem? Also, my heater core seems to be getting warm but doesn't leak in any way. Thanks [/b]
Mar 27, 2006 at 2:21 AM
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KENB79764
  • ✓Experienced Mechanic
  • 52 POSTS
though the core is getting warm, it may be partially plugged. also check that the htr control door is working properly and changing over to route the air across the core as it should.
Apr 5, 2006 at 3:00 AM
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Suggested Repair

Check for a partially plugged heater core and verify the heater control door is working and routing air across the core.

Conversation Summary

Owner of a 1996 Chevrolet Blazer S10 with 88,000 miles says the heater blower works but does not blow warm air after a leaking water pump and the thermostat were replaced. The heater core gets warm and does not leak. The expert suggests the core may be partially plugged and recommends checking that the heater control door routes air across the core.

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