2002 A4 1.9 TDI 85000 MILES

2002 AUDI A4
Avatar
ANTHONY CAVANAGH
  • MEMBER
  • 1 POST
ENGINE MAKING WHISTLING NOISE WHEN TURBO COMING IN, NOT RUNNING SMOOTHLY ALSO BLACK SMOKING
Oct 16, 2007 at 1:04 PM
Advertisement
Avatar
2CARPRO JACK
  • ✓ASE Certified Mechanic
  • 11,533 POSTS
  • ASE Certified Mechanic
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 3:35 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.