Question about 1998 Cadillac Catera
White smoke means water (steam) in the engine cylinders, coming from the cooling system....
broken head gasket or cracked cylinder wall.
1998 - you might want to temporarily use an engine sealer. AutoZone can advise which is best for plugging a head gasket leak.
It will need to be replaced ($200+) and get valve job done ($100) at an ato parts store that has a machine shop, since the valve head must be removed to replace the gasket between thr head and the engine block.
Not likely, but it could be water in your gas tank. Did you just fill up?
or was the car driven with an over-heated engine?
Look at the opil dipstick. There will be a milky substance in the oil. That's water mixed with oil.
--- sorry ---
Posted on Sep 24, 2009
Sounds like it is burning oil inside to engine
Posted on Sep 24, 2009
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Posted on Jan 02, 2017
SOURCE: i have a 1999 saab
Likely a turbo impeller shaft seal failure. If you want to confirm, pull the inlet to the charge cooler (driver's side, behind bumper cover 7mm clamp) If oil drips out you have a bad shaft seal in the turbo, if not I would perform a leak down test to insure rings are sealing adequately. (not a compression test) If this checks out, I would suspect valve seals. (not likely although it has happened). Head gasket failures are not typically as catastrophically smokey as you have described your car to be, unless the leak is also compressing the cooling system. I buy these cars all the time with this issue, only to replace the turbo and sell them for thousands more. Just my 2 cents...
Posted on Aug 29, 2008
SOURCE: white smoke from tail pipe
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
White smoke is a sign of burining antifreeze. When heater is not blowing warm air, that is a sign of faulty heater core.
No power, coolant loss, overheating, is sign of headgasket leak.
Double check your thermostat as well.
Posted on Sep 09, 2009
SOURCE: Just started to noticed white
Looks like you have a blown head-gasket. The white smoke is actually your engine coolant mixing with your engine oil and being expelled as a water vapor. You need to take it into a repair shop Immediately.
Posted on Oct 04, 2010
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