SOURCE: black smoke from exhaust
This is almost certainly a split hose - mine was the large hose coming out of the bottom of the EGR valve.
Speaking to a parts guy at my local Jaguar dealer, he said that the new part is uprated as Jaguar are aware that this is a problem.
The split allows more air in and results in the ECU changing the mixture and over fuelling - Black smoke is an indication of un-burnt Diesel. As well as the black smoke you may also notice a whistle/whine or sucking noise when you accelerate and a lack of power / lumpiness at around 2000rpm.
Hope that helps!
Graham
SOURCE: Jag X TYPE Diesel Black smoke coming from exhaust on acceleration
i had this problem and thought the fuel filter oil filter needed replacing so i have just had a service done but problem is still there but not as bad. been told it could be the AGR valve or a split pipe going to it which recuirculates unused fuel back to burn again. therefore unspent fuel is coming out of the exhaust causing the black smoke. i am still looking for the answer aswell, hope this helps.
SOURCE: black smoke from nearside exhaust, on occasions.
Black smoke indicates it is feeding too much fuel. Maybe problems with the fuel pump.
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