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Old 07-18-2012, 05:54 PM   #1
cbrguy
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2001 SC2
1997 SL2
Default How deep is the vacuum side on the EGR passage??

I want to try and clean the one in the head on my 1999 SL2.
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04/17/13 2001 SC2 A, Blue
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Old 07-18-2012, 07:13 PM   #2
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1995 SL2
Default Re: How deep is the vacuum side on the EGR passage??

A piece of old speedometer cable, powered by a drill works well to clean out EGR passages. Often, simply starting the car for a few seconds with the EGR valve removed is enough to clean out the passages: there will be a massive vacuum leak through one, and an exhaust leak through the other, creating significant flow in both passages. The engine will rev pretty high due to the vacuum leak, but the rev limiter will prevent any damage. If that isn't sufficient, I'd try the speedometer cable.
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