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P0128 Diagnostic Trouble Code Discussion for August 2009

Thermostat System Malfunction

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Trouble Ticket Help Requests for DTC P0128
Help Request Posted
2006 Chevrolet Cobalt LS 2.2L MIL Lamp on VIN: F777103254
P0128: Engine Coolant Temperature Below Thermostat Regulating Temperature. ... ,ac not working,cleared code, ac went to working,had code p0128,coolant theremastat,i have very little inforemation on this.replaced coolant sensor all readings on scanner look ok ,thanks for any information.
August 05, 2009
2005 Saturn Ion-1 2.2L Surge VIN: 1G8AF52F85
P0128: Engine Coolant Temperature Below Thermostat Regulating Temperature. Hi guys, This customer came to my shop for severe surge when cold has he release the clutch. When he brought me the car and after a cool down I positively agreed with him and the complaint. First I hooked the scantool and 2 codes as mentionned were listed as ...
August 10, 2009
2004 Lincoln Aviator 4.6L Misfire, MIL Lamp on VIN: 5LMEU68H04
P0128: cht or ect problem. ... genisys scan tool, although I can retrieve codes with state inspection machine. I haven't had any problems with this tool except with some lack of capabilities. It has the smart cable and updated to 2008. I checked fuses and the're ok. Truck runs rough and...
August 18, 2009