Smoke coming from the exhaust
 

Yesterday my friend gets a 350z and his girl friend was with him so I gave her the keys to my mine thinking she could handle a 7AT. Well we are driving beside her an I noticed the sound of engine red lining so we get her to pull over an the temp gauge said 260 so I let it cool down for a couple of hours an now a white smoke shoots out the exhaust. The temp is back to normal everything seems ok but everytime I start it up the smoke comes out. What should I do??

what was she doing when this happened. you sure your parking brake wasnt on ? ive redlined and reved out before and im sure i dont have any smoke

To be honest I have no idea what she did but I think everyone can learn from my mistake never let a women drive your z..... Everytime it gets a cold start the smoke comes out

Wait, the woman? Or the Z? :confused:



:shakes head:

White smoke is coolant which could signify a head-gasket problem

Is there anything to prevent the smoke...

You sure it's not condensation? Does it smell like burnt oil or fresh oil? Or does it have a sweet smell? Check coolant level and oil level.

Take it to a dealer to have it evaluated and repaired if there is a problem. Otherwise, just don't start it.

Yea you got to smell the smoke.

+1 if she kept it redlined and heated it up really hot it COULD have blown a head gasket (fairly common on cars that overheat) and if so, you could end up with coolant in your oil and a new short (or long) block in your future.

It seems not even limp mode can save the Z from a dumbass driver. :eek:

Take some vids. After the car warms up is smoke coming out of the exhaust still? If you give it some gas or drive it, does it spew out a bunch of smoke? Also, are your water temps staying the same, or is it higher than usual? Check the dipstick for anything unusual.

When the car warms up the smoke clears the smoke has a nasty burnt smell to it an i checked the oil nothing is unusual with it i let it run for little bit everything seemed fine but I'm going to the dealer tomorrow an see what they have to say

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my chin is still on the floor

Yeah I was really pissed off an if she was man I woulda punched her in the face but hopefully it's nothin big

Good luck.

:roflpuke2: QOTD!!! There's the option of a falcon punch.

Hope it's nothing too bad. How's the temps over there? It's the 50s here, but I don't think it's enough to see cars blow out smoke.

260 degrees is no where near the temperature level where you would start worrying about head gasket failure. Do you think she was running the car at redline for an extended period of time? Burning coolant is a white smoke and will smell sweet while oil burning is indicated by blueish smoke with a burning oil smell. It is best to smell the exhaust once the car is warm as a cold start will inherently smell of unburnt fuel/particulates since the catalytic converters are not up to temp and burning off those particulates.

You're right, it shouldn't have even been in limp mode yet. Doesn't seem very likely that there is anything wrong but it couldn't hurt to take it to the dealer to be checked out.

Agreed for sure, even if there is something wrong it should be under warranty. Good luck!