White smoke ???
10-14-2009, 04:59 AM
#1
Staging Lane
Thread Starter
Join Date: Jun 2004
Posts: 51
Likes: 0
Received 0 Likes
on
0 Posts
White smoke ??? Guys I've a problem with my 04 M6 GTO . After a strong rev a white smoke goes out from the exhaust tip . The car won't smoke at high RPM only after RPM dropping .Some say it's PCV others say it's valve seal kit .I've a doubt in that I think it has got a weak piston rings . what do you say . BTW I just bought the car and a crappy exhaust installed on .
10-15-2009, 04:17 AM
#3
Staging Lane
Thread Starter
Join Date: Jun 2004
Posts: 51
Likes: 0
Received 0 Likes
on
0 Posts
10-15-2009, 11:46 AM
#4
Teching In
Join Date: Jan 2008
Location: Sioux Falls, SD
Posts: 49
Likes: 0
Received 0 Likes
on
0 Posts
From my experiences, white smoke is always coolant burning in the motor (getting in through some way). Sounds like you only see it at high revs and not constant throughout the rpm range. Your coolant levels won't change very drastic then. Maybe you have a head gasket getting ready to go. Keep a close eye on it. Check your plugs and maybe if you have the tools a compression check wouldn't be a bad thing to see (not absolutly diagnose your problem).
10-16-2009, 01:35 PM
#6
TECH Enthusiast
iTrader: (6)
Join Date: Nov 2006
Location: Pineville, LA
Posts: 605
Likes: 0
Received 0 Likes
on
0 Posts
White smoke could also be fuel. Coils, plugs, or wires could be bad not creating enough spark to burn the fuel inside the engine. Doesn't have to throw a code if any of those are bad or going bad.
Trending Topics
10-21-2009, 02:45 PM
#11
Ok after a high rev and you snap the throttle closed you create a huge vacuum in the intake.......this maybe sucking water out of the PCV system or AIR system. It is also possible one of the head gaskets are leaking BUTT two things you will notice if they are. 1 the smoke will smell sweet or like coolant and if its just water from the PCV it will not smell. Just water white water vapor. Does it do this EVERY time?
10-23-2009, 03:01 AM
#13
Staging Lane
Thread Starter
Join Date: Jun 2004
Posts: 51
Likes: 0
Received 0 Likes
on
0 Posts
Ok after a high rev and you snap the throttle closed you create a huge vacuum in the intake.......this maybe sucking water out of the PCV system or AIR system. It is also possible one of the head gaskets are leaking BUTT two things you will notice if they are. 1 the smoke will smell sweet or like coolant and if its just water from the PCV it will not smell. Just water white water vapor. Does it do this EVERY time?
