No check engine light.
Check engine light white smoke from exhaust.
This is nothing but steam caused due to condensation.
On cold winter days it is common to see white smoke from exhaust pipe as soon as you start the car.
Condensation can turn to vapor providing what looks like white exhaust.
This is usually caused by one or more of the following problems.
Temp guauge is normal.
The most common cause of white smoke from the engine compartment is a coolant leak that occurs on a heated part such as the exhaust manifold.
It s an odd coincidence that white smoke started after drive belt tensioner replacement.
Open the hood and check for coolant leakage.
As the engine warms up after a few minutes this white smoke will not be reduced because condensation is dissipated.
White smoke from the exhaust pipe on startup idle or acceleration is telling us that there is coolant or water that is getting vaporized.
I pulled into parts store.
Added oil coolant and drove.
When coolant is heated it produces white smoke.
Any type of change in the color of the smoke white smoke from exhaust for example is surely a sign that there is a problem with your beloved car the severity could be varying depending on the type of smoke.
White smoke from exhaust on startup.
Then when i was coming to a stop at a light the check engine light suddenly came on and the rev seem to go low and the car start shaking a little then when i started to drive off i could see smoke coming out of the exhaust it seem white but the smoke goes away after i rev up and speed away but than i notice it would show up agian at after.
When idle it s less.
I have 2015 ford focus first sign of problem the ac stopped result of fan not working within same drive car got really hot and warning light message to stop engine immediately showed on dash.
2005 toyota camry 100600 miles.
White smoke as mentioned above can either be very light just like vapor or it can be dense and heavy smoke.
Had drive belt tensioner replaced 2 days ago and tonight i noticed large amount of white smoke coming out of exhaust.
Some white exhaust smoke is normal especially when you first start the car.