2004 Mercury Marquis machine gun noise upon starting

Tiny
JMMUNROE574
  • MEMBER
  • 2004 MERCURY MARQUIS
  • V8
  • 2WD
  • AUTOMATIC
  • 32,768 MILES
When I start the car in the morning, about 15 seconds later, a machine gun noise is heard. If I let it alone, it goes away after about 15-30 seconds later. If I turn off the car, the noise remains until I turn the key one position, then the noise stops. It sounds electric to me as it happens when the car engine is not running.
Monday, December 8th, 2008 AT 8:19 AM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
Hi:
could it be related to the starter? Can you tell where the sound comes from?
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Tuesday, December 30th, 2008 AT 1:44 AM
Tiny
JMMUNROE574
  • MEMBER
  • 2 POSTS
New info; It only happens when the outside temp is colder than 40 degrees!
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Tuesday, December 30th, 2008 AT 8:20 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
Hi:
I still think it has something to do with the starter sticking on. I recommend that you remove the starter and check it. If I'm right, the teeth on the gear will be marked. With out hearing it myself, I can't think of anything other that would make a machine gun sound other than the teeth on the starter not fully retracting from the flywheel.
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Tuesday, December 30th, 2008 AT 11:17 AM

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