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11-21-2017, 04:28 PM | #1 | |
AF Regular
Join Date: Oct 2012
Location: Des Moines, Iowa
Posts: 121
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Burn spot on EGR vacuum modulator filter
I was cleaning the little round filter that sits under the top cap of the EGR vacuum modulator on my 1999 Toyota Camry.
In the process, I noticed a little round burn spot about the size of the head of a pin on the bottom side of the dense gauze type filter. Somewhere online I read that this little burn spot is an indicator that the diaphragm has a small pin hole in it allowing hot exhaust gasses to burn the underside of the filter. I'm wondering if this is true and if I should replace the EGR Vacuum modulator. I am not getting any kine of check engine code at the moment, so I'm wondering if I should just ignore this. Has anyone ever heard of such a thing concerning this burn spot? Thanks, Harkauto |
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