Grey smoke when idling 1999 GMC Suburban, coolant system pressure loss

What causes GREY smoke from exhaust?
Does white smoke mean blown head gasket?
Why is my engine smoking but not overheating?
Why does my car smoke after idling?
How do you fix GREY smoke from exhaust?
How do I fix white smoke from exhaust?
What are the first signs of a blown head gasket?
How do I know if my Headgasket is blown?
Will head gasket sealer stop white smoke?
Can low oil cause white smoke from exhaust?
Can low oil cause white smoke?
What does it mean when white smoke comes out of your exhaust pipe?

What causes GREY smoke from exhaust?

Blue/gray exhaust smoke means there's likely an oil leak and your engine is burning oil. ... The leak could be caused by several issues like leaking valve seals, damaged piston rings, or worn cylinder walls.

Does white smoke mean blown head gasket?

The most common sign of a blown head gasket is exhaust smoke. White smoke indicates that your car is burning coolant that is leaking into the cylinders. A similar problem is indicated by blue exhaust smoke, though this is a sign of oil leaking from the gasket.

Why is my engine smoking but not overheating?

The most common answer to, “Why is my car smoking but not overheating?” is that there's a type of fluid that's landed on the engine. This can be motor oil, fuel, transmission fluid, coolant, or even condensation. It can cause your engine to smoke because it's burning off that fluid from the engine.

Why does my car smoke after idling?

The car is a bit older, so this is the more likely cause. Also possible that the oil is overfilled (common problem), or the grade of oil is incorrect (also a common problem). Worst case scenario is that the rings need to be replaced, and the engine will always smoke especially under stress, not just idling.

How do you fix GREY smoke from exhaust?

A blue or grey colored smoke is typically caused by an engine that's burning a significant amount of oil. If you're lucky, this can be caused by a blocked PCV valve, which can start sucking oil into the engine. Fixing this problem is typically as easy as replacing that valve with a new one.

How do I fix white smoke from exhaust?

How To Fix White Smoke From Exhaust Issue

Step 1: Inspect The Intake Gasket. Intake gasket is the first part to check when you have white smoke from exhaust. ...
Step 2: Examine Further To Check The Head Gasket. Head gasket is also needed some attention. ...
Step 3: Look For Any Crack In The Cylinder Head.

What are the first signs of a blown head gasket?

Bad head gasket symptoms

White smoke coming from the tailpipe.
BUBBLING IN THE RADIATOR AND COOLANT RESERVOIR.
unexplained coolant loss with no leaks.
Milky white coloration in the oil.
Engine overheating.

How do I know if my Headgasket is blown?

How To Tell if a Head Gasket Is Blown:

Coolant leaking externally from below the exhaust manifold.
White smoke from the exhaust pipe.
Bubbles in the radiator or coolant overflow tank.
Overheating engine.
White milky oil.
Fouled spark plugs.
Low cooling system integrity.

Will head gasket sealer stop white smoke?

K-Seal can fix water loss and white smoke from your car exhaust. Thick white smoke pouring from the exhaust is usually due to a crack in the cylinder head, engine block or head gasket.

Can low oil cause white smoke from exhaust?

White smoke most likely would indicate that water or coolant is getting into the combustion chamber or exhaust port. ... Another cause of the smoke could be that the oil originally in the engine was a mineral oil but was replaced with a synthetic oil, which has a greater cleaning effect on varnish and soot deposits.

Can low oil cause white smoke?

So Can Low Oil Cause White Smoke? A. No, it cannot. Unrelated to the fluid's level, if oil does make it into the combustion chamber, you could see blue-tinted smoke coming from your exhaust.

What does it mean when white smoke comes out of your exhaust pipe?

White Exhaust Smoke

This means that coolant has somehow leaked into the combustion chamber. This could be caused by a few things, such as a blown head gasket, cracked engine block, or cracked cylinder head. Any one of these things is a major repair and will not be cheap or easy.