2004 Mercury Marquis Vacume Leak

2004 MERCURY MARQUIS
100,000 MILES • 4.6L • V8 • 2WD • AUTOMATIC
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REVNAV
  • MEMBER
  • 1 POST
When accelerating the blower slows, then cuts off,
How do you check for vacuum leaks?
Mar 21, 2014 at 12:01 PM
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HMAC300
  • ✓ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
if the blower slows then check battery for cleanliness and belt being tight as it may be a bad belt and tensioner. to check for a vacuum leak especially on heater listen for hissing around vacuum and use your hand to follow tubes. see if you get vacuum to one of the motors tha tare supposed to be working and pull line off and stick finger there, if vacuum then the motor is no good
Mar 22, 2014 at 7:15 AM
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