HVAC Issues.

2006 MERCURY MARQUIS
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THEPHNX39
  • MEMBER
  • 15 POSTS
When I start my car up and turn on ac or heater, it blows out nothing as if it's congested/clogged on all cycle modes and will do this for like 5 minutes then blow out as normal for a few minutes then back to congested/clogged blowing. What can be causing this and how to fix it?
2006 Mercury Grand Marquis LS
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2006 MERCURY GRAND MARQUIS LS
Aug 21, 2011 at 1:15 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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RASMATAZ
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 75,992 POSTS
Check and test the blower motor relay/blower motor harness if okay Have the HVAC control module checked out-
Aug 21, 2011 at 1:23 AM
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THEPHNX39
  • MEMBER
  • 15 POSTS
@rasmataz. How to test relay n harness? And where to get replacements?
Aug 21, 2011 at 1:50 AM