Question about 2002 Chevrolet TrailBlazer
This is a tricky code PO252 refers to the fuel injection pump metering control A range performance.
Their just isn't enough information for me to ever speculate other then its a 2002 try changeing the fuel filters and take a look at the pump out put pressure it should be over 60 PSI at least if its lower it could be the fuel pump
Posted on Apr 11, 2015
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Posted on Jan 02, 2017
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