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Easiest way to fix cracked heads on a 2004 Tahoe has white smoke coming out of exhaust

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  • Cars & Trucks Master
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In most cases thye can't be fixed, they have to be replaced.

Posted on Oct 29, 2012

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Posted on Jan 02, 2017

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SOURCE: white smoke or steam coming out of exhaust pipe,

Its funny that everyone has solved the problem without any answers to critical questions. In this case, everyone is right and everyone is wrong. ONLY careful testing and observation will determine if there is an actual problem. I do not solve problems just to be first. Even in a hands-on situation I refuse to jump to conclusions before testing, otherwise you run the risk of at best, "chasing your tail" or at worst, tearing into a perfectly good engine to prove nothing!!!
Happy New Year!!!!

Posted on Jan 01, 2009

  • 1779 Answers

SOURCE: white smoke coming from exhaust when accelerating

This is usually an indication of a bad head gasket.I gasket. The white smoke is the coolant leaking out of the engine and winding up in the oil passages, due to a bad head gasket. To confirm this,
1. check oil. Is level increased, or milky appearance?
2. Is coolant level dropping, but u don't see any signs of leaks?
The above indicates a bad head gasket, causing the white smoke u describe. Let me know how u make out.

Posted on Jan 03, 2009

rylee_smith
  • 8619 Answers

SOURCE: White Smoke From Tail Pipe/Exhaust

It often means that you are burning antifreeze. You asked if it needs antifreeze, have you noticed any leaking out of the reservoir tank while you are running it? Sometimes when the head gasket goes it will produce a passage for the antifreeze to pass from the capillaries into the combustion chamber. It is easy to check if you have an air compressor. Remove one of the rear sparkplugs and the radiator cap. Fill the radiator and then push some air into the sparkplug hole (get a good seal in case a valve is open). Repeat with all the cylinders and watch for air bubbles coming up into the radiator. If bubbles come up or fluid is pumped out, the head gasket is blown and must be replaced. It is more likely to happen at the back of the engine because it is farthest away from the fan and therefore gets less cooling. Also check your oil for discoloration. If it is a brownish color it could mean your oil and antifreeze are mixing and has the potential to damage your bearings

Posted on Jan 29, 2009

  • 195 Answers

SOURCE: White smoke coming out of the exhaust when starting?

Hello;
Volumes of white smoke is an indication of water in the exhaust. A certain amount of vapor will be present on start up, but if it is different than what has been the norm for this vehicle then a check of the cooling system is in order.
Rich
RPM Northwest

Posted on Mar 25, 2009

  • 29 Answers

SOURCE: coolant leak

More than likely it is coming from the intake manifold. You can use a pressure tester that hooks to the radiator and use a flashlight and mirror to get a better look at where it is coming from.

Posted on Apr 02, 2009

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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

2 Answers

Blueish white smoke comeing from exhaust


Hello There

White smoke when first started is normal. If white smoke continues you have an internal coolant leak, i.e., cracked head/blown head gasket.
Black smoke is caused by a rich fuel condition.
Blue smoke is caused by oil consumption.

You need to check your oil cap for yellow/white gunk on the cap if you have this then this is a sign your head gasket is cracked. Check to see if your radiator coolant level is down this is also another sign.

Hope this helps. Please don't forget to rate me.

Many Thanks

May 20, 2009 | 2004 Chrysler PT Cruiser

3 Answers

My Ford Windstorm Has White Smoke Coming Out Of Exhaust,ConstanLy,Thick White smoke


White smoke is an indication of water in the exhaust. This can be from condensation in the muffler, but that type of smoke usually dissipates after a minute or two of running. Constant, thick white smoke is usually a sign of water leakage into the combustion chamber(s), either via a blown head gasket, cracked head, or cracked block.

Feb 08, 2016 | Ford Cars & Trucks

1 Answer

Black smoke from exhaust 2004 accord


Black smoke is burning oil.White smoke is due to water getting in to a cylinder from a bad gasket, cracked block or a cracked head. cracked heads.


Jan 18, 2012 | Honda Accord Cars & Trucks

2 Answers

2004 chevy tahoe sometimes smokes when started


The smoke you are seeing is most likely oil seeping through the valve stem seals into the combustion chamber .......

Jun 08, 2011 | 2004 Chevrolet Tahoe

1 Answer

SMOKE FROM EXHAUST PIPE


white smoke head gasket blue smoke engine internal black smoke fuel related

Feb 14, 2011 | 2004 Chevrolet Tahoe

1 Answer

Fuel injectors were repaired for 400 bucks and white smoke is till pouring out of my exhaust and my gas usage is still above normal did I get ripped off. The mechanic at the garage said it would smoke...


I am corncerned about the smoke being white.
White smoke usually is from moisture in your exhaust system.
The moisture comes from water getting your engine cylinders by one of several ways.

1 Blown Head Gasket
2 Cracked Head
3 Cracked Cylinder

A rich gas condition causes black smoke
Oil burning causes blue smoke

Check your coolant level to make sure your not losing it into the engine vis a crack or bad gasket.

Good luck

Nov 26, 2010 | 1994 Ford Thunderbird

2 Answers

Hi, what does it mean when huge amounts of white smoke comes out of the exhaust? otherwise drives ok? it is a renault megane 1.5 dci 2004. regards catherine


Symptom: White smoke or water vapor from the exhaust. You notice white smoke coming from the exhaust when you start your car. If it is cold out, this may be normal. If the smoke does not disappear after the car is warmed, you have a problem. Possible causes:
  1. Transmission fluid may be entering the intake manifold through vacuum modulator.
    The Fix: Replace vacuum modulator
  2. Cylinder head gasket(s) may be bad.
    The Fix: Replace cylinder head gasket(s).
  3. Cylinder head(s) may be warped or cracked.
    The Fix: Resurface or replace cylinder heads. (Resurfacing is not a DIY job)
  4. The engine block may be cracked.
    The Fix: Replace engine block.

Oct 12, 2009 | 2005 Renault R5

1 Answer

White smoke and smell of eggs


White smoke in the exhaust, more so on a cold start. That's steam. Water is getting into the combustion chamber. Most likely coolant.
Put your hand in the white smoke to capture the odor. (don't burn yourself)
What does your hand smell like? Coolant (anti-freeze & water) smells sweet.
Likeliest cause = head gasket. Possible = cracked head - depending on how hot it got. Less likely = cracked intake manifold.
Maybe a blown head gasket 

Apr 01, 2009 | 2006 Ford Focus

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