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2007 STS 4
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11 Posts
Discussion Starter #1
Need help with this. 4.6 Northstar. When I turn off the engine I hear what sounds like a "poof" sound. The engine runs and idles fine. No Check eng. lights.
Anyone have any ideas what this sound is?
 

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Super Moderator SEMPER PARATUS
2003 DeVille Base
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4,419 Posts
what year? Vin 9 or Vin Y? Did you pull codes? Only P codes will set the SES light. We need way more info in order to help you.
 

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Registered
2007 STS 4
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11 Posts
Discussion Starter #3
Its a 2007 STS, 4.6, AWD, VIN 9 or Y? I didn't see Y I did see 9 in the VIN number. It didn't set any codes. The sound "POOF" only happens when you turn off the engine.
 
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