Question about 1995 Pontiac Sunfire

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Engine coolant light

Everytime i drive the engine coolant light comes on. At first i thought it was the thermostat, replaced it, light still came on, took out thermostat (has been out for about 2 mths) light is still coming on, coolant is fine. Can anyone help me with this problem and how to fix it? Please.

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  • nuttynikki Jun 20, 2008

    can't see the solution, where is it????

  • Anonymous Jul 14, 2008

    My engine light stays on most of the time but the coolant light pops on about every 5 days because the anti-freeze has evaporated. I replaced the radiator and still have the problem. The car does not run hot.

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You need to have a thermostat in your coolant never going worn up to proper temp and the engine not going to run right your prob is the coolant level sensor in the over flow tank if u got coolant to corrrct level

Posted on Jun 22, 2008

  • jeremy lang Jun 22, 2008

    sorry meant coolant is never going to warm up

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I have a 2006 Buick Lucerne V6 code po128 comes up. What does it mean?


P0128 BUICK P0128 BUICK - Engine Coolant Temperature Below Thermostat Regulating Temperature Repair Importance Level: 3/3 Repair Difficulty Level: 2/3 help.jpg Share facebook.png twitter.png linkedin.png google-plus.png sep.png print.png pdf.png share.jpg 3 comments.png ' Add Comment xicon.jpg http://www.autocodes.com/p0128_buick.html Forum Code Possible causes - Leaking or stuck open thermostat
- Low engine coolant level
- Insufficient warm up time
- Faulty engine coolant temperature sensor
- Engine coolant temperature sensor harness is open or shorted
- Engine coolant temperature sensor circuit poor electrical connection
help.jpg What does this mean? Tech notes If cooling system is not leaking and the fluid level is OK, replacing the thermostat usually takes care of the problem.
help.jpg What does this mean? When is the code detected? If the Powertrain Control Module (PCM) detects the calibrated amount of air flow and engine run time have been met, and the Engine Coolant Temperature (ECT) has not met the minimum thermostat regulating temperature, the code P0128 will set. Possible symptoms - Engine Light ON (or Service Engine Soon Warning Light) P0128 Buick Description An Engine Coolant Temperature (ECT) sensor monitors the temperature of the coolant. This input is used by the Powertrain Control Module (PCM) for engine control and as an enabling criteria for some diagnosis. The air flow coming into the engine is accumulated and used to determine if the vehicle has been driven within the conditions that would allow the engine coolant to heat up normally to the thermostat regulating temperature. If the coolant temperature does not increase normally or does not reach the regulating temperature of the thermostat, the diagnostic that use ECT as enabling criteria may not run when expected.



Read more: http://www.autocodes.com/p0128_buick.html#ixzz3vprh5jzz

Regarding which thermostat to use, I am guessing it depends on where you live.

Ask these people when you order the thermostat.

http://www.autopartswarehouse.com/shop_years/buick-lucerne-thermostat-2006.html

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2008 f350 6.4 liter wrench light on reduced engine power on no codes water pump and housing replaced thermostats replaced coolant flushed twice oil coolers free flowing lights are still on any sugesti


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thermostat probably sticking.
Autoparts store will scan the computer for you for free.
They will give you the trouble code/s that make the check engine light come on.
You can just google the number they give you if they don't tell you what it is/means.
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