Unplugged check valve=good idle?
Thread Starter
Lets rock.
Joined: Apr 2004
Posts: 1,355
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From: SLC, Utah
Unplugged check valve=good idle?
Ok the vacuum line i'm speaking of is the check valve line on the back of the manifold. On M/T there are 2 and 3 for the A/T. Anyways the last one (check valve) I noticed when disconnected my car idles perfectly! Never drops and never pulses. Didn't noticed any performance loss or gain. However, when I plugged the line back in the car idled like ****. Pulsed like S5's usually do and is either too low or too high. And the car dies when I plug the hole. So are there any long term effects of just unplugging the hose from it?
Last edited by flamin-roids; Nov 10, 2004 at 02:15 AM.
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