1990 chevrolet truck heater

1990 CHEVROLET TRUCK
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KWALKINGSTICK
  • MEMBER
  • 1 POST
I don't have any heat. Blower works, heater core & thermostat replaced and fuse inside truck o.k. What else do I need to check?

1990 Chevrolet 1/2 ton 4wd v8 with 216,000 miles.
Nov 6, 2007 at 7:00 AM
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MERLIN2021
  • ✓Experienced Mechanic
  • 17,250 POSTS
See if the heater hoses are hot or cold, it's either the temperature blend dorr is stuck, or I have heard of the impeller blades in the water pump disintigrating over time...
Nov 6, 2007 at 7:27 AM
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