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What is the problem the vw caravelle starts and have black smoke that comes form the exhuase and dont ideal

Posted / edited by AnonymousUser on : 20-05-2019

Answers :

I feel its very probable that the cam belt is not timed as accurately as it should be .. this will certainly cause all that you mention - ie, starting troubles - smoke on occasion especially when its struggling to start and also, the starting in limp mode....or, if its not true limp mode... missing / poor running ... ( it wont be true limp mode if there is no engine light / fault codes )
So - the timing / timing belt really has to be checked first ..and put right / go from there..
You will get oil in the pipe you mention - thats normal..so long as its not absolutely swimming in it - it shouldn't be awash - but there will be some...
Just check the oil level with the dipstick though - Its imperative that its not even a smidgen above the high mark... if it is - it can cause severe engine damage... it would need to be drained off some. Ideally the oil level should be just below the top mark. Even a slight overfill will cause smoke too.
After the above - I will just mention, this engine does suffer with faulty ECT sensor... This when failing, will also cause poor starting and smoke and missing...
You could if you wish , try that first - fit a new one. Again - its a very common fault on these... The sensors are only about $30 and changed in mins. It is possible that this sensor has failed with all the work thats gone on.. So do bear that in mind also... These sensors wont always set a fault code neither when they go down.
Hope helps.
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