1999 Mercury Cougar humming

Tiny
NYCHICK25
  • MEMBER
  • 1999 MERCURY COUGAR
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 99,000 MILES
My car makes a humming noise in the front when it is cold when I hit the gas it stops but does it more when I turn right please help
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Thursday, March 12th, 2009 AT 7:34 AM

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Tiny
AJFORREST
  • MEMBER
I had that humming noise go on for quite awhile. It's the ERG or EGR valve getting stuck. It's a valve in your exhaust system so when you give it more gas it builds enough pressure to go ahead and pop it open. I've had it replaced twice on my car so far but the second one seems to be holding up ok. If you don't get it replaced and it really gets stuck it apparently could back up your engine and cause some major problems.
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Monday, May 25th, 2009 AT 7:33 PM

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