so today i went to an autox i noticed my car was puffing out some white smoke(barely noticeable,to the point where you had to be in the right angle to see it) but there it was not cold and my car was not cold so we let it idle for a little and no smoke then started to rev it to maybe 5000 rpm and let off and more smoke came out of my car not like a holy crap amount but more noticeable and after prob another minute to idle it went away.


i hope not the head gasket

 

blue/white smoke is usually oil burning which can mean gasket.

was there an odor or smell to it?

 

normal in cars.. humidity in the exhaust pipe can do this......

 

water in the muffler gets hot can produce kinda smoke.

 

ya i did not notice anything strange with the car the same power. i was just scared because he always made a joke by it and then it looked like it happened so i got worried

 

Machanics, correct me if I am wrong...

- White smoke = anti-freeze getting in to the cylinder, head-gasket, etc. Usually has a sweet smell.

- Blue smoke = oil getting in to the cylinder, valve seals, etc.

- Black smoke = too much fuel or ignition problems, bad spark plug, bad injector, etc.

 

White smoke is coolant yes, but not a head gasket, that is linked to the blue smoke.

I know this cause a gasket on my TB for the coolant let go and I stalled from a large amount of coolant getting into the engine. It took a good 2 days for me to burn all of it out of the engine.

 

Blow a head gasket and you could get coolant, oil, both, or neither in the CC. That means you may or may not get white/blue smoke, or a combination of the two.

Gasket on the TB for the coolant? On your Maxima?

 

well its recessed into the underneath connection where the there is a collective pool and coolant runs through, I bored my stock TB out to about 69-70mm and for some reason no matter how I tried to reattach this bottom piece it leaked coolant in. I now have a coolant bypass setup