White Smelly Smoke from Exhaust Pipe...any idea what the cause is?

tourerboy75 · 18th January 2021, 22:11

Hello,

I have a Rover saloon 75 CDTI Club 2002 with 23,000 miles on the clock, it's been garaged and off the road for over ten years. I decided to put it back on the road and give it a full service in preparation before it's MOT.

I now have White Smelly Smoke from the exhaust tailpipe....any idea what the cause is? I don't think it will pass its MOT with this problem. I put a can of Wynns Pre-MOT cleaner, half in fuel filter and half in the tank to see if this would help but so far just on engine idle no changes in the white smelly smoke emission.

Completed so far: New Wynns engine flush and oil change, radiator flush and coolant change, new fuel filter, new PCV filter and rubber seal, new air filter, I have cleaned out the EGR valve and replaced the gearbox transmission oil. I did have an issue with the re-starting of the engine after I emptied the old stood diesel from the tank via the UBP. (With help from forum members in November it turned out the old fuel filter which was full of dirty fuel, a new one cured the starting problem).

I have read a few threads and some say it could be either be a head gasket seal, a cracked head gasket or possibly a faulty injector or a leaking injector.

I've noticed it doesnt start up straight away, it takes about three or four seconds before it strikes up on the first key turn. Also I've noticed a small smoky haze rises from the Webasto heater assembly fuel burning in the engine bay but it dissapears after two or three minutes.

Any ideas would be a great help to try and pinpoint the problem.

18th January 2021, 22:11	#1
tourerboy75 Regular poster Rover 75 Tourer CDT Join Date: Jun 2011 Location: Spalding Posts: 31 Thanks: 7 Thanked 9 Times in 3 Posts	White Smelly Smoke from Exhaust Pipe...any idea what the cause is? Hello, I have a Rover saloon 75 CDTI Club 2002 with 23,000 miles on the clock, it's been garaged and off the road for over ten years. I decided to put it back on the road and give it a full service in preparation before it's MOT. I now have White Smelly Smoke from the exhaust tailpipe....any idea what the cause is? I don't think it will pass its MOT with this problem. I put a can of Wynns Pre-MOT cleaner, half in fuel filter and half in the tank to see if this would help but so far just on engine idle no changes in the white smelly smoke emission. Completed so far: New Wynns engine flush and oil change, radiator flush and coolant change, new fuel filter, new PCV filter and rubber seal, new air filter, I have cleaned out the EGR valve and replaced the gearbox transmission oil. I did have an issue with the re-starting of the engine after I emptied the old stood diesel from the tank via the UBP. (With help from forum members in November it turned out the old fuel filter which was full of dirty fuel, a new one cured the starting problem). I have read a few threads and some say it could be either be a head gasket seal, a cracked head gasket or possibly a faulty injector or a leaking injector. I've noticed it doesnt start up straight away, it takes about three or four seconds before it strikes up on the first key turn. Also I've noticed a small smoky haze rises from the Webasto heater assembly fuel burning in the engine bay but it dissapears after two or three minutes. Any ideas would be a great help to try and pinpoint the problem. Last edited by tourerboy75; 18th January 2021 at 22:14..