can egr valve make engine run hot melt pistons?

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Best Answer:
Jan 12, 2015 · If the EGR valve is stuck open, it will essentially cause a vacuum leak, leading to inefficient combustion, rough idling, hesitation, and sometimes stalling in extreme cases. This is because the car cannot combust on carbon dioxide from the tailpipe — it needs atmospheric oxygen.... read more

Possible Answer:
what is the function of the egr valve? Can it be repaired or does it need to be replaced? ?Answer by Ryan GoatSubmitted on 11/19/2003Rating:  Ratethis answer: N/AWorstWeakOKGoodGreatThe EGR stands for Exhaust Gas Recirculation.   Exhaust gas is routed back into the combustion chamber because the exhausted air is much hotter than the intake air (try touching a muffler sometime).... read more

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