Question about 2007 Chevrolet Cobalt Coupe
Posted by Anonymous on
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Posted on Jan 02, 2017
Sounds like your head gasket has a leak. I would also check your dip stick. If there is coolant mixed with the oil also. Then it is your head gasket.
Posted on Feb 03, 2009
SOURCE: P0128 code
Unless the car is overheating you probably just have a bad temperature sensor probably located on the intake manifold....
Posted on Apr 03, 2009
Testimonial: "i replaced the coolant temp. sensor and every thing is o.k. Thank's for the help. Your advise was right on."
The P0218 Code is primarily intended to indicate a faulty thermostat.
Have the thermostat replaced
Other possible causes that could trigger this code would be:
Low engine coolant level
faulty cooling fan
faulty coolant temperature sensor
faulty intake air temperature sensor
Posted on Sep 08, 2009
Tips for a great answer:
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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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