Question about 2005 Chevrolet Equinox

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Describe your my Chevy equinox overheating Problem. We just had the thermostat change in the vehicle but it still overheats. I not sure if it the temperature sensor or it maybe something else. The fans will start up and then the needle would be in the red and the water light would come on.

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  • Richard Scordino May 11, 2010

    Check for leaks and have a hydrocarbon test done to check for blown head gasket...any water coming out of tailpipe or any water in oil ?



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You have an air pocket in the coolong system, you have to purge all air from the system or you will continue to have this problem. This is done easily with the correct tools and know how but if you do not have those I would suggest taking to a pro.

Posted on Nov 06, 2009


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2006 chevy equinox water pump changed, intake gasket changed, thermostat changed radiator flushed still overheating. can rev car up and temp drops but let idle and it starts overheating again

Do the cooling fans come on ? Your vehicle should have two fans controlled by The PCM - engine computer energizing three different relay's for low and high speed .

May 11, 2017 | 2006 Chevrolet Equinox

2 Answers


Did you replace the thermostat as well? That could be your problem. Also make sure your radiator and reservoir are full.

Nov 18, 2013 | 2006 Chevrolet Equinox

1 Answer

2006 Chevy Equinox Overheating

The first thing that comes to mind is a bad head gasket and fits our symptom. Combustio

I’m happy to assist further over the phone at

Jul 14, 2013 | 2006 Chevrolet Equinox LS

1 Answer

2005 equinox blows cool air until engine has been running. then much later when heat is on heat begins to feel a [tad] lukewarm after then. what type or brand of coolant should be used in this vehicle/...

It sounds like your thermostat is going bad. However if you start noticing any liquid in your floorboard the heater core is on it's last leg. Check your manufacturer's specs before adding any anti-freeze. More than likely your Chevy requires only the use of DexCool antifreeze. It is very important to be sure that you do not ever mix brands of antifreeze if they require DexCool. Mixing any other coolant with DexCool will cause a chemical reaction causing the liquid to turn to gel. You can end up with internal corrosion of vital engine parts, engine lock up, and serious overheating as a result. As a general rule for engine safety and performance you should always check to make sure that you are adding the same color of coolant to what is already in the car. If it's green don't add orange. Before changing colors (types) of antifreeze in your vehicle, you will need to flush out your engine till it all runs out.

Mar 28, 2011 | 2005 Chevrolet Equinox

2 Answers

I just changed the water pump, thermostat, and flushed the heater core. I ran the car for a while with the surge tank cover off and kept filling it. As soon as I got on th e-way it overheated.

The surge tank should only have a little water in it, not full. I hope you didn't overfill it, this can cause your problem, but I would look at the radiator and make sure it is not plugged and your cooling fans, make sure they are running as well. Then last but not least your water pump may be bad even though you changed it, check for good flow through the radiator, if flow is good and strong then check the fans. You have already done most of what can be done, make sure the thermostat is not in backwards, in fact take it out and see if the car runs cooler, this will help pinpoint the issue also.

Mar 13, 2011 | 2006 Chevrolet Equinox

3 Answers

2005 chevy equinox overheating.. we changed the thermostat, still overheating. and now there is gray/white smoke from exhaust???

sounds like you have a blown head gasket.
be sure engine is cold, open water tank be sure it is full than start car with tank open see if you see bubbles in the tank. If so possible head gasket blown.

May 09, 2009 | 2005 Chevrolet Equinox

2 Answers

99 Chevy Silverado is overheating after maintance on radiator

try checking the hoses for blockage,and if not that make sure the fan is working right as it might be the fan cluch,or your water pump may have went out,best of luck

Mar 12, 2009 | 1999 Chevrolet Silverado 1500

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