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Topic Review (Newest First)
08-19-2008 12:23 PM
Originally Posted by richard stewart 3rd
If the egr valve is stick open it will cause,
rough idling, a vacuum leak, & hesitation.
if stuck closed it can cause knocking (pinging)

Good addition! I forgot that they can stick open too. Seen lots of them back in the day.
08-19-2008 11:27 AM
richard stewart 3rd
egr valve

If the egr valve is stick open it will cause,
rough idling, a vacuum leak, & hesitation.
if stuck closed it can cause knocking (pinging)
08-19-2008 11:21 AM
Jmark It won't be rich, atleast not enough to notice, but you may find the engine more prone to pinging than before.
08-19-2008 10:14 AM
SBCfan04 thanks..if the EGR valve is bad can that make a engine run rich or anything?
08-19-2008 08:46 AM
richard stewart 3rd Hi,
EGR = exhaust gas recirculation valve.
It's used to allow a portion of the exhaust gases to be routed back
into the combustion chamber to be re-burnt,
resulting in lower emissions & a cooler more complete burn.
08-19-2008 07:14 AM
EGR valve

What is it? and how does it work?

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