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My son has a 2006 Chevy Cobalt The car is overheating losing coolant and there is smoke coming from the engine and underneath the car. What could the problem be?

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  • Cian Griffiths Jan 09, 2017

    How likely is the car to have a head gasket leak or cracked block? and if nothing is added like antifreeze will it crack the block? A fraudulent mobile mechanic added RTV stop leak, could that also harm the vehicle?

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There is a leak in either a hose, from the radiator itself or possibly the water pump. look around with a flashlight while car is running and try to determine where it is coming from. hopefully just a hose, thats your cheapest fix. good luck

Posted on Jan 03, 2017

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Posted on Jan 02, 2017

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SOURCE: 2006 chevy cobalt coolant leaking out running rough and whie smoke underneath the car.

Blown head gasket

Posted on Dec 21, 2016

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2 Answers

My car has white smoke coming from the exhaust


he causes of white exhaust smoke can vary; however, it is common to see white exhaust smoke when first starting a car, especially on cooler days. This is generally steam caused by condensation. As the engine warms up and the condensation dissipates the white exhaust smoke (steam) is no longer seen. If excessive white exhaust smoke is present well after the engine warms up, it is necessary to have the car inspected for possible internal coolant leaks. Indicators of an internal coolant leak include billowing white exhaust smoke accompanied by a sweet odor or a low coolant reservoir level. An internal coolant leak can also contaminate the engine oil giving it a frothy, milky appearance. Even small amounts of coolant entering the combustion chamber will produce white exhaust smoke.
One of the main causes of white exhaust smoke and coolant loss is a cracked or warped cylinder head, a cracked engine block, or head gasket failure caused by overheating. A cracked head may allow coolant to leak into one or more cylinders or into the combustion chamber of the engine. Dirty coolant, a poorly maintained cooling system, a low coolant level, or a non-functioning cooling fan can cause engine overheating. In addition, engine wear can eventually cause the gaskets to lose their capacity to seal properly allowing internal coolant loss. Intake manifold gasket and head gasket failures are two of the most common sources of internal coolant loss caused by engine wear.
Never remove the radiator cap or coolant reservoir cap while the engine is hot or running as it can cause serious injury; always allow the car to cool down completely first. Checking for a low coolant level in the reservoir is the first step in determining if coolant loss is causing the white exhaust smoke. If the coolant reservoir is at the proper level but excessive white exhaust smoke is present, a cooling system pressure check is required to determine where, if any, coolant leaks are located.

Nov 17, 2016 | Cars & Trucks

1 Answer

2006 chevy cobalt the engine cooling fan is not coming on


Check with warm engine and off by touching on your radiator vents whether is in all places same temperature. If not check whether you have air in the coolant which needs bleeding,or not good coolant circulation,caused either by clogged radiator,not good water pump,or faulty thermostat.By having these things it is the possibility the fan switch not getting the correct temperature to allow the fans to start. the last thing if everything is working,the possible is the fan switch itself.

Sep 02, 2012 | 2006 Chevrolet Cobalt

1 Answer

I have a 2006 Colbolt and I am losing anti-freeze somewhere,somehow. Either head gasket, or intake manifold(gasket)???? please help. Only 8ok miles on it. Still runs great when im driving, just runs a bit...


You have either a bad head gasket or cracked head.
Without a doubt. Get it checked out ASAP. Check your oil, if you have a ton of coolant on the stick, don't drive it, or you'll seize the entire engine. Good luck.

Mar 30, 2010 | 2006 Chevrolet Cobalt

1 Answer

Temp guage goes up and check engine light comes on


If engine is overheating then check coolant level and thermostat first, then water pump. If engine is not overheating then check coolant temp sender for gauge.

Jan 08, 2010 | 2006 Chevrolet Cobalt

1 Answer

White smoke from tail pipe


U have a blown head gasket the white smoke is burning coolant

Jul 01, 2009 | 2008 Chevrolet Cobalt

1 Answer

White and gray smoke coming out back and underneath 1995 Chevy Bl


Too late to check now... you've got a blown head gasket. When the gauge starts to give you any indication that something's not right you must shut it down or this kind of thing happens. Could have started as a bad water pump, hose etc. With low coolant from that (or anything else) continued operation will kill the whole thing!...Sorry!!

Feb 19, 2009 | 1995 Chevrolet Blazer

3 Answers

Overheating


215 is not overheating. Does it keep getting hotter the faster you go? Does it cool off when slowing down or at idle? Does the Fan clutch or electric fan come on? When the engine is this hot.

Aug 09, 2008 | 2006 Chevrolet Cobalt

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