Aggressive_Maize1675@alien.topB to Mechanic Advice@gearhead.town · 10 months ago

2007 Ford Taurus 3.0 Vulcan

My car has the P0174 code. I performed a smoke test to look for vacuum leaks. My EGR valve has smoke emitting from the small vent holes. My understanding is that my EGR valve’s diaphragm is damaged. Is this a correct assumption? Thank you in advance.

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Sophias_dad@alien.topB
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10 months ago
That is correct. You can also(as a second test) apply a vacuum to the valve and see if it leaks down. I’m sure it will.

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Confirmation Request, EGR Vent Holes

Confirmation Request, EGR Vent Holes