White smoke can be a big problem or not, depending on the thickness. The white smoke is the result of normal condensation which builds up inside the exhaust system. Causes of White Smoke from the Exhaust pipe. On cold winter days, it is common to see white smoke from exhaust pipe as soon as you start the car. As the engine warms up after a few minutes, this white smoke will not be reduced because condensation is dissipated.
If this happens, you will notice white smoke from the engine bay. How to fix white smoke coming from the engine. Leaking coolant is a leading cause for white smoke coming from the engine. If smoke is being release then this is indicative of a problem. HOWTO looks at all the possible reasons why white smoke is coming from your exhaust pipe.
One of two conditions is responsible for white smoke blowing out of your exhaust. First is normal condition (so you don’t have to panic) and the second is a not so normal condition which should be fixed as soon as possible. If you the white smoke consistently comes out and the sweet odor smell is present, then it is definitely a problem with your coolant leaking. You may commonly see white smoke coming from the exhaust on cooler days upon starting. Blowing white smoke is a red flag for your diesel engine, yet we see this happen all the time to our customers.