Questions & Answers for: cobalt code p0128

Cobalt that has been throwing a p0128 code recently couple with the fact that when it does the engine temp readout on the DIC reads "---" instead of a temp. I was told that the most likely culprit was

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...code p0128 on my 2006 chevy cobalt ss engine light came on once before plugs changed went away now back on steady this time not blinking has loss of power with pedal to floorboard then comes in but ...

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Question about 2008 Cobalt

1 Answer

...code PO128 - insofficient ambient temp was does this mean how can i fix it DTC P0128: Engine Coolant Temperature (ECT) Below Thermostat Regulating Temperature Do you have any issues with heat in the ...

Question about 2006 Cobalt

2 Answers

...code P0128 may mean that one or more of the following has happened: Low engine coolant level Leaking or stuck open thermostat Faulty cooling fan (running too much) Faulty coolant temperature sensor ...

Question about 2007 Cobalt Coupe

1 Answer

check engine light has been on for a long time. 4 diagnostic codes: PO128, PO315, PO604, PO62F I can't find what the codes mean. p0128 is coolant temperature sensor below range, change sensor. ...

Cobalt 2.2 . If code P0128 is stored for a long period without being fixed, can it cause the sec air inj pump to run unneccessarily and wear out the pump motor? code P0128 is ECT ( engine coolent temp

Question about 2006 Cobalt

1 Answer

2007 chevy cobalt with p0128 Code 128 means the engine is not reaching normal operating temp. The most common reason is a faulty thermostat.

...cobalt just did a tune up and now have these codes on my car P0326,P0300,P1516,P0496,P0128,P0411. Hi Heather , so who did the tune up ? By all these codes it mustn't run very well. What engine does ...

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