No prior problems.
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
SOURCE: 1994 Suzuki Sidekick spark plug cover blown out.
Oh, ok. No, they shouldn't be related. The plug cover meaning the spark plug wire boot that goes over the spark plug hole? Why won't it stay in? Is the spark plug missing? Those plug wires snap onto the spaek plug holding the wire on the plug.. There should be a spark plug in the hole. If not, you probably had it blown out. That happens once in a blue moon. If the plug is missing, get a new one and carefully install it by hand, no rachet. If the plug won't start in the hole the first few threads mat be strippe. Do not cross-thread the new plug. Spark plug hole taps are available at parts stores. good luck
SOURCE: Suzuki GV burns oil
valve seals will not cause this kind of oil consumption, a scocred cylinder wall or broken piston ring will, not sure on the head gasket, does it have a combustion gases present in the radiator surge tank or bubbles while running? if not the head gasket is probaly ok.
SOURCE: exhaust smokes when engine starts
Most common reason for that is worn valve stem seals and or guides or gunk buildup in the cylinder head blocking oil return holes.... Or, broken piston ring or burned piston lands. (use compression test to verify that) Knocking can be from oil detonating in cylinder or bad rod bearing etc.
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