IDLE ROUGH WHEN STOPPED AT TRAFFIC LIGHT OR STOP SIGN

  • Tiny
  • scottrjr-23321
  • 2003 Volkswagen Passat
  • 130,000 miles

Tread Quarters did diagnostic.-Replace line vacuum hose, next day return car w/same problem, install a factory part (unknown), p/u car & return within 2 hours same problem. Was told to go to dealers. Not fair, they got paid, still got the idling & check eng. Light back on. We install 4 coil pack & wires prior to. But Rough idle & check eng light continues. Help!

Monday, September 23rd, 2013 AT 8:45 PM

3 Answers

  • Tiny
  • saturntech9
  • Expert
  • 28,244 posts

Which engine do you have?Also what are the exact code numbers you have not code descriptions?

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Monday, September 23rd, 2013 AT 8:51 PM
  • Tiny
  • exovcds
  • Member

Replace the PCV check valve.

Thomas

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Tuesday, September 24th, 2013 AT 5:03 PM
  • Tiny
  • saturntech9
  • Expert
  • 28,244 posts

That's a good one Thomas I had another user with a similar problem with.A pcv leaking vacuum causing issues. They supposedly make a Aftermarket metal one.

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Tuesday, September 24th, 2013 AT 7:30 PM

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