sounds more like vacuum problem - Saab 900 Bulletin Board - Saabnet.com
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sounds more like vacuum problem
Posted by Monster (more from Monster) on Sat, 1 Jun 2002 08:24:11
In Reply to: can a bad AIC cause the car to hesitate and stall ...., Chet, Fri, 31 May 2002 17:56:23
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A rough idle and hesitation as you describe could be a vacuum leak. Rent, borrow, or buy a vacuum handpump tester and check each of the vacuum lines coming off the intake manifold to see that they all hold vacuum.
The idle dashpot wouldn't cause the car to run roughly, but it can cause stalling on deceleration. To test it rev the engine up to 3000 RPM in neutral and then release the pedal, seeing how quickly it drops to idle RPM. It should take 4 to 6 seconds if the dashpot is working properly.
- = M = -
posted by 208.63.20...
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