2004 Mercury Mountaineer

2004 MERCURY MOUNTAINEER
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JUQUARIUS WALKER32
  • MEMBER
  • 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 9:19 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,240 POSTS
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 4:41 PM
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