2004 Mercury Mountaineer

2004 MERCURY MOUNTAINEER
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JUQUARIUS WALKER32
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  • 1 POST
Heater problem
2004 Mercury Mountaineer

im heater want get hot and theres a knocking sound when i turn it on
Mar 12, 2010 at 5:19 PM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
It sounds like the blend door is sticking if you hear a clicking sound. Have that checked and let me know what you find.
Mar 22, 2010 at 11:41 PM
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