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Old 08-01-2007, 08:23 PM   #1
miamibob
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'93 GM EGR Passage Cleaner

I have a '93 GM and want to clean out the EGR Passage (where the throttle body elbow attaches to the Intake). Should I use a liquid (like Seafoam) or just manually scrape it out?? I'll put a rag in the Intake so NOTHING gets into the engine! Any other thoughts would be appreciated....MB
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Old 08-02-2007, 05:39 PM   #2
way2old
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Re: '93 GM EGR Passage Cleaner

We use carburetor cleaner and putty knives or small chisels. If it is really set, chisels are the way to go. If it is still soft, you can scrape it out with screwdrivers.
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