Re: 1986 nova all at once it started missing no oil in...
I'd personally start by checking the basic ignition components; spark plugs, spark plug wires, distributor cap and rotor. If any of these items are damaged, worn or just no longer up to specification then they're likely to be the culprit. Mine just went through a spate of stalling and wouldn't restart because the wires were no longer insulating properly...weak spark, wouldn't ignite the fuel.
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usually white smoke is caused by water or anti freeze entering cylinder. in radiator or overflow the coolant will look like a chocolate milk shake. check on oil dipstick for traces of water or anti freeze. this would indicate a bad head gasket. look around head at gasket, and see if you can see any leaks. Most symptoms of a blown head gasket can be diagnosed through careful observation As the coolant heats up, and pressure rises, it will be forced into the cylinder during the intake stroke. This coolant will flash into steam during combustion and will be visible as a white cloud coming from the tailpipe. it may not even be a head gasket thats bad, cause usually if headgasket is bad, engine will overheat!! but if a bad gasket vehicle would miss and loose power. also check the pcv system ( positive crankcase valve ). hope this helps ! check system first !!
the head gaskets are blown you can believe that anytime on any engine gas or deisel that you get oil in the radiator and there water/ antifreeze in the oil pan the gaskets and or cylinder heads are bad
This being a diesel, lack of compression is your worst enemy. These symptoms sound like a blown head gasket. Check your coolant for signs of oil, and check your oil for signs of coolant. (oil will be milky looking) Also indicative of a head gasket problem is an oil or coolant leak from the engine as well. If you see no evidence of the above, have a compression test done, and it should show up.
If you have steady thick white smoke and it smells like anti freeze it is most likely the head gasket. The head gasket can fail in different areas. If it has white smoke it failed between a coolant passage and the combustion chamber. If the oil is milky it failed between the coolant passage and an oil passage. Just because the oil isn't milky doesn't necessarily mean that the head gasket it's blown.
yes, it is a definite sign of blown head gasket.
I did have only once a problem similar where the engine block was cracked but other than that,bet on the head gasket.
Take a coolant system pressure measurement, (if your head gasket is blown, the pressure in your coolant system would go down slowly)