1999 Mercury Cougar humming

1999 MERCURY COUGAR
99,000 MILES • 6 CYL • FWD • AUTOMATIC
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NYCHICK25
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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
Mar 12, 2009 at 7:34 AM
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AJFORREST
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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.
May 25, 2009 at 7:33 PM