P0128 Diagnostic Trouble Code Discussion for July 2008
Thermostat System Malfunction
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| Help Request | Posted | |
| 2004 Volkswagen Jetta TDI 1.9L MIL Lamp on VIN: WVWSR61J74 P0128: coolant t-stat below regulated temp. second time for coolant below regulated temperature, new tstat- always at normal operating temp. |
July 28, 2008 |
