I have a 2006 Chevy Uplander that while driving when I come to a stop & start to accelerate again, there is minimal power and sometimes it would stall on me. I took it to a Chevy dealer & they said it was the Upstream O2 Sensor. So I bought the part & replaced it. Well it is doing the same thing again, but minus the stalling. Any idea what it could be now?
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Thursday, June 7th, 2012 AT 9:43 PM