20R/22R EGR Valve
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Yep, I've filled it up with aerosol carb cleaner and am letting it soak some more. The reason I think that there's something wrong with mine is that when try to pull a vacuum at the egr's outlet (simulating engine vacuum at idle coming from the egr pipe), I can't get a solid reading...just hear a hiss and the gauge drops to zero...so I'm guessing air is leaking around the internal valve/seat or in from the top seal around the internal valve's stem.
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