engine races

1998 VOLKSWAGEN JETTA
200,000 MILES
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CALLAHAN13
  • MEMBER
  • 1 POST
when driving the engine seems to race......even when first starting......i tried wd40..seem to help..but the problemcontinues
May 2, 2013 at 3:17 PM
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CARADIODOC
  • ✓Experienced Mechanic
  • 34,414 POSTS
High idle speed is typically caused by a vacuum leak. Listen for a hiss or you can try spraying water on the vacuum hoses while the engine is running and still cold. Watch for anyplace it gets sucked in or the engine momentarily slows down.
May 2, 2013 at 3:22 PM
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