Smoke Color

[Lextreme II]

What is Blue Smoke Mean and possible cause/s.
1.
2.
3.

What is Black Smoke Mean and possible cause/s.
1.
2.
3.

What is White Smoke Mean and possible cause/s.
1.
2.
3.

 

[Zuffen]

Blue smoke:
1. worn rings/bore
2. worn valve guides/seals
3. blown head gasket between oilway and cylinder

Black smoke:
1. running rich because of:

1. faulty o2 sensors.
2. wrong injectors (far too big)
3. faulty cold start valve.
4. faulty ecu
5. filthy air filter

White smoke:

1. torn diaphram in brake power booster
2. leak from power steering pump into idle up lines

 

[cjsupra90]

What is Blue Smoke Mean and possible cause/s.
1. Signs of oil burning
possible causes= Bad rings, valvestem seals, headgasket, crack
in block or head(s), turbocharger or supercharger seals,
malfunctioning PCV system
2.
3.

What is Black Smoke Mean and possible cause/s.
1. Signs of improper fuel mixture and or burn
Possible causes= Injectors, injector wiring, engine managment malfuction
(fuel and or ignition), improper tuning, fuel pressure regulator
malfunction, to large of a fuel pump
2.
3.

What is White Smoke (not to be confused with steem from condinsation in the exhaust during cold startups) Mean and possible cause/s.
1. Signs of water/coolent burnig or vaporizing (also excessive fuel that cannot burn most notorious with excessively (fuel) flooded motors)
Possible causes= Headgasket, cracked block and or head(s), over
excessive water injection if being used, any item that has a water
port adjacent to a intake or exhaust runner (examples, throttle body
warmed, ISC solinoid warmer, EGR cooler, ect.) leaking liquied to air
intercooler if being used
2.
3.

 

[V8TOY]

Doesnt blue smoke mean turbo not feeling good.