* Coolant Leak into the Combustion Chamber: This is a serious problem. White smoke that smells sweet is a strong indicator of coolant leaking into the cylinders. This could be due to a blown head gasket, cracked cylinder head, or a faulty cylinder liner. Ignoring this will lead to serious engine damage.
* Condensation: Especially in cold weather, white smoke initially upon starting is often just condensation from the exhaust system. This is usually harmless and will clear up after a few minutes of driving. If it persists for a long time, or only appears after the engine is warm, then it's likely not condensation.
* Oil Leak into the Combustion Chamber: White or bluish-white smoke, often accompanied by a burning oil smell, suggests oil is leaking into the cylinders. This can be caused by worn piston rings, valve stem seals, or a cracked piston.
* Crankcase Ventilation Issues: If the crankcase ventilation system is malfunctioning, it can lead to excessive pressure building up in the crankcase, forcing oil and other fluids into the combustion chamber resulting in white smoke.
* Overfilled Engine Oil: If you've overfilled your engine oil, it can be burned off and create white smoke.
To determine the cause:
It's impossible to diagnose this remotely. You must have a mechanic inspect your Ford Transit. They will likely perform the following:
* Visual Inspection: Checking for leaks around the engine and exhaust system.
* Compression Test: To assess the condition of the cylinders and piston rings.
* Leak Down Test: To identify leaks in the cylinders.
* Coolant and Oil Analysis: Checking for contamination.
Ignoring white smoke from the exhaust can lead to catastrophic engine failure. Get it checked immediately.
