ON FIRST STARTING WHEN ENGINE IS COLD THERE IS A...

  • Tiny
  • Kev7459
  • 2003 SAAB 9-5
  • 112,000 miles

On first starting when engine is cold there is a strange whining or high pitched humming noise which increases as you rev engine, but goes off after a 5 mins or so as engine warms up. Not sure if this is possibly a loose belt or something more serious? I did also notice excess smoke from exhaust but again that may be due to being cold. Also the turbo boost gauge seemed to fluctuate whilst revving at a standstill but seems fine whilst driving?

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Monday, March 18th, 2013 AT 8:24 PM

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