2002 A4 1.9 TDI 85000 MILES

2002 AUDI A4
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ANTHONY CAVANAGH
  • MEMBER
  • 1 POST
ENGINE MAKING WHISTLING NOISE WHEN TURBO COMING IN, NOT RUNNING SMOOTHLY ALSO BLACK SMOKING
Oct 16, 2007 at 6:04 AM
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2CARPRO JACK
  • ✓Experienced Mechanic
  • 11,533 POSTS
Sounds like it could be a mixture control problem caused by an intake or other vacuum leak. Inspect all vacuum lines and intake hoses for cracks or breaks. Is the check engine light on?
Oct 16, 2007 at 8:35 AM
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