high idle
Thread Starter
Cruising
Joined: May 2007
Posts: 12
Likes: 0
From: Richland Hills Texas
high idle
Everytime now that I come to a stop my car is idling at around 1300 - 1500 RPM. Sometime when I really get on it and come to a stop its around 2000 or 3000 RPM. But if I blip the throttle the car returns to her normal idle speed. What's the deal here?
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 32
From: The Top of Utah
Very often when blipping the throttle brings the idle back down, the problem is with worn throttle shaft bores in the TB casting. Not only can they prevent the butterfly from closing all the way, air can leak past the throttle shaft and the shaft bore.
RACE ON!!!
RACE ON!!!
Advanced
Joined: Jun 2007
Posts: 88
Likes: 0
I have a similar problem. After shut off, I listened and it sounds like a vacum leak near the brake booster. Not sure if thats what it is or not. This is a annoyance though. Have to hold the brake pedal with both feet to stay still.
Melting Slicks
Joined: Apr 2004
Posts: 2,099
Likes: 0
From: Springfield PRoP
Cruise-In VI Veteran
I have that sound as well, and my idle runs about 11-1200 at times. What should I be checking for?
Team Owner
Joined: Feb 2006
Posts: 24,460
Likes: 7
From: sw Ohio
Yes, it definitely sounds like you have a leak in your brake booster vacuum line. If the brake pedal feels hard thats how you know its not working.
