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Discussion Starter · #1 ·
Just bought a new 2020 trax LS, noticing that when sitting at stop light and let foot off brake to go the engine surges/sputters for a split second. Any ideas?
 

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brake booster usually runs off a pcv valve on turbo setups. Could be a leak. Would need to have a mechanic look at it with a scanner.
 

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Yeah, probably a leaky intake gasket or the PCV system is compromised somewhere, either the PCV regulator diaphragm, intake PVC and very rarely the PCV at the turbo.
 
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