Cat Diesel Engine Blowing White Smoke

Here are 7 of the most common causes of a car blowing white smoke from the exhaust pipe.

Cat diesel engine blowing white smoke.

In very cold temperatures the heated exhaust can freeze into minute fuel droplets when exiting the exhaust and produce a more prolonged emission of white smoke for a very short period of driving time. What causes white smoke from exhaust when cold. Really bad blow by could be the result of worn piston rings. In the cold weather the white smoke can be quite normal but in some situations it is not.

If you are having a diesel white smoke may be unburned fuel or coolant going through the engine. This makes start up more efficient reducing smoke. Condensation that accumulates inside the exhaust pipes converter and mufflers can produce a puff of white smoke upon diesel engine start up. White smoke is typically not as much of a problem with electronically governed engines as it is with mechanically governed engines.

Continuous light white smoke. June 8 2020 at 4 36 pm. This is a steady stream of a lighter white. Causes of diesel engine smoke by color.

A marine diesel that shows a bit of smoke on start up is probably nothing to worry about but if it keeps on smoking after a few seconds of run time or starts smoking after it warms up or when you throttle up that engine is screaming to you to get something fixed. For example the 3208 marine engine rated 435 bhp 326 bkw has a camshaft that closes the inlet valves earlier. In many cases white smoke emanating from the tailpipe often at idle once the engine reached operating temperature typically means a worn out injector. Diesel doctor basics of diesel part 2 of 3 if you see white smoke coming from the exhaust.

In order to run correctly a diesel engine needs precise timing of the injector pump and proper pressure. My 4 cylinder diesel engine discharged all it s oil from crank case througj exhaust pipe. 1 condensation burn off. A brand new diesel engine running at full load will experience a little bit of blow by upon startup.

Continuous white smoke while driving is one of them. Blowing white smoke is a red flag for your diesel engine yet we see this happen all the time to our customers.