ilovejdmhoes23

what does white smoke mean when it comes out of the muffler!

skunk2eg

leaking or burning oil, most likely worn piston rings or valve seals

bart2546

Could also be (depending on the amount) a head gasket either starting to go or realllly gone already. Is it starting to idle rought or bog down and stall? If not it's probably just the head gasket starting to go.

EK KID303

yep its probably the gaskets, also if your car kinda sounds like like a subaru thats also a sign it might be a gasket...keep an eye it

norcalboy_abe

uhm could be water condensation
or the oil cooler or something is entering your engine

team1320_k26eg

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EK KID303 &raquo;</TD></TR><TR><TD CLASS="quote">yep its probably the gaskets, also if your car kinda sounds like like a subaru thats also a sign it might be a gasket...keep an eye it </TD></TR></TABLE>

x3

ilovejdmhoes23

i dnt knoW?? it will idle then all of a sudden white smoke will come out then stop then again!! what is going on?

excivicboy96

coolant into the cylinder?

ekhatchling

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EK KID303 &raquo;</TD></TR><TR><TD CLASS="quote">yep its probably the gaskets, also if your car kinda sounds like like a subaru thats also a sign it might be a gasket...keep an eye it </TD></TR></TABLE>
If it smells sweat...then x4

AntiStock

Generally, as far as smoke goes:

Black - fuel - car is running very very rich
White, sweet smelling - coolant getting into combustion chamber...possible head gasket
Bluish grey - oil getting into the combustion chamber...could be gasket, bad rings
White, no smell, goes away after warming up - could just be moisture in the exhaust - AFAIK, no problem...my car does this in the winter.

ilovejdmhoes23

iam boosted dnt know if that makes a diff.

instrument

depends also if you have a cat.


bitches.

ilovejdmhoes23

no cat open dwnpipe!!

kuja396

Normally white smoke is water, and therefore probably a head gasket, you may want to perform a leakdown test to see for sure. If it is, you will definately tell. All your cylinders will be good (hopefully) except probably one, which will read horribly.

I would do a leakdown immediately.

ilovejdmhoes23

how do you do that??

kuja396

First you need a leakdown gauge and a air compressor, before you do the test go drive it around a little bit, everything seals up better when it is close to normal operating temperature, I guess because metal expands and contracts based on how hot or cold it is.

1. you hook up the gauge to the air supply and set it to "set" on the gauge.
2. Then you hook a little hose from the spark plug hole while you turn the motor over by hand (I use the crank pully nut) while your friend feels for the cylinder to come up n the compression stroke.
3. Right when it does, stop, and then hook the gauge up to that little hose.

From then, the psi (i set mine at about 110) goes into your cylinder and wherever the weakspot is the air escapes, enableing you to find where the leak is coming from

You put your ear to stuff. Air coming from your intake probably is a intake valve or seal, Air coming from your oil cap is probably rings, air coming out of your exhaust may be exhause valves.

Repeat steps 1-3 with your other cylinders.

Basically, compression tests arent great IMO, they dont tell you a whole lot, although if im looking to buy a car that is a must before the money changes hands. With a leakdown, there is MUCH more information you can gather from the results, and what is messed up about it.

I need to make a write-up on how to do this so people know. Its really great to know how to do.