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P0128 Diagnostic Trouble Code Discussion for May 2019

Thermostat System Malfunction


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Trouble Ticket Help Requests for DTC P0128
Help Request Posted
2008 Chevrolet Express 3500 6.0L MIL Lamp on, VIN: 1GAHG35K58
... pretty simple with the codes but havent got to the bottom of this one yet. So at random this van will show over heat and a/c dissabled. This will happen at start up after sitting all night and will happen while driving. Shut van off restart almost alw...
May 01, 2019