I have a 93 Mazda .mx3 4 cylinder 5speed with white smoke from exhaust how do I check where it's coming from to cause the white smoke its minor on idol but when gas pedal pressed there is more visible smoke

SOURCE: Burning oil-no visible leak. Seems

Hi,

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photo7 says:
what about the piston rings
Benimur says:
that could be checked with a compression tester at your dealer
Benimur says:
so for the moment course of action would include: compression test
dye to determine where the oil went, if no trace found then it could be assumed was burned; change the catalyctic converter, it went as a direct result of oil in the exhaust system
Benimur says:
some remedial/temporary workaround includes installation of an aftermarket oil cooler with its own fan; maintain a lower engine temperature by removing the thermostat (not applicable to cold regions) and wiring the radiator fan to continously work.
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

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.

SOURCE: White smoke from exhaust

turbo

SOURCE: white smoke from exhaust

If you are getting clouds of white smoke out the exhaust it is a good indicator of antifreeze getting into one or more of the cylinders. I bought a "Great" car sight unseen from a friend once and when he pulled in the drive the whole car disappeared in a cloud of white smoke that only left when he shut the engine off. I found head gasket leaks in half the cylinders. It takes very little coolant to cause the white smoke. If you are absolutely sure of zero coolant loss perhaps the smoke is a little blue--an indication of burning a little oil from a sloppy turbo bearing. Try the nose test-- it may give you the answer. Burning oil has a distinctive smell.

SOURCE: car is blowing white smoke from exhaust when i step on gas

The most likely cause is a blown head gasket,but it could also be a warped head,was the motor overheated prior to the problem starting? The white smoke is steam,check the underside of the oil fill cap and dipstick for a grayish brown residue,check the coolant for a low level and oil conatamination,either of these conditions verify that a head isn't fully sealed.Unless your moderately skilled mechanically this a job to be done by a shop.A good shop will perform a leakdown test to verify this.