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High idle speeds

Tiny
JAKESY
  • MEMBER
  • 2001 CHRYSLER PT CRUISER
  • 4 CYL
  • 2WD
  • MANUAL
  • 67,000 MILES
My pt cruiser has recently upon start up been idling at approx 1500rpm if I leave it for a couple of mins it returns to normal 800rpm, but if I drive away I keep getting high revs even whilst changing gears and braking to a stop with the clutch in any help please?
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Monday, September 1st, 2008 AT 12:46 PM

2 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,840 POSTS
Hello,

It sounds like you have a vacuum leak which you can find by using this guide.

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

Common leak paths include the and throttle body gaskets, and of course, any of the engine's vacuum fittings, hoses and accessories.

Please let us know what you find.

Cheers, Ken
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Monday, September 1st, 2008 AT 1:16 PM
Tiny
JAKESY
  • MEMBER
  • 1 POST
Yep, I followed the guide and sure enough I found the main vacuum line going the booster had a suck hole in it. All fixed! I love this site.
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Thursday, September 4th, 2008 AT 1:06 PM

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