Question about Saab 9 7X
Posted by Anonymous on
Old post, but YES you can still drive it. Replace your thermostat will fix this problem. With this code, your engine isn't getting up to temp within a certain time frame is all. I've cleared that code so many times, until I finally replaced the thermostat. You might as well replace the temperature sensor while you're in there. Some years it's right above the thermostat, others it's on the passenger side, way in the back of the engine.
Posted on Feb 28, 2015
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Posted on Jan 02, 2017
Follow your upper radiator hose to the motor. It will be clamped to your thermostat housing. Unscrew the 2 or 3 bolts holdng the housing down and your thermostat will be right there. Replace thermo. and gasket then reaffix housing and hose. LET MOTOR COOL DOWN BEFORE CHANGING and hour+!!
Posted on Jun 12, 2009
CODE P0128- THERMOSTAT MALFUNCTION. POSSIBLE CAUSES 1. ECT SENSOR IS OUT OF CALIBRATION. 2. CHECK THE OPERATION OF THE THERMOSTAT IT MAY BE STUCK OPEN.3.INSPECT FOR LOW COOLANT LEVEL OR FOR AN INCORRECT COOLANT MIXTURE.
Posted on Jan 06, 2010
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This means that the engine's PCM detected that the engine has not reached the required temperature level within a specified amount of time after starting the engine. The intent of the P0128 code is to indicate a faulty thermostat. Similar codes: P0125
In determining the engine did not reach a "normal" temperature, it takes into account the length of time the vehicle has been running, the intake air temperature (IAT) sensor reading, the engine coolant temperature (ECT) sensor reading, and the speed of the vehicle.
A code P0128 may mean that one or more of the following has happened:
Past experience indicates that the most likely solution is to replace the thermostat. However here are some suggestions on troubleshooting and repairing a P0128 OBD-II code:
I hope this helps a bit!
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