Ask Honest John

Most recently answered smoke questions
How much does it de-value the price of a car with the stink and discolouration of the inside?
I have a Skoda Octavia 1.6. It has 170,000 km in good condition but it has problems - black smoke from the tail pipe and a high fuel consumption. I changed the spark plug, timing belt, water temp sensor,...
Last week you wrote about DPF clogging to contaminate lubricating oil. My computer says I have a reduced oil level but the dip stick confirms correct amount. I get black smoke on accelerating.
I've got a Citroen Picasso 1.6 HDi. I lost engine power and an engine management light came on. It turned out that the impeller on the turbo had broken. I also had failure of an injector and carbon build...
Got a nice 160mile trip back home in a recovery truck after what the guy suggested is a faulty turbo on my Xsara Picasso HDI (110 I think) - loads of blue smoke from exhaust and no oil left thereby. Thing...
I have recently encountered a problem with a knock when the engine first starts the usual bag of spanners noise with black smoke coming from the exhaust. It subsides when the engine warms up and it doesnt...
I've got a Ford Mondeo Mk3 2.0 TDI. It lost all power and then produced white smoke, then it stalled and would not start again. When it cooled down it started, but was very lumpy and with smoke, then stalled...
I have a 2006 Chevrolet and there is smelly smoke coming out near the radiator. I have since had problems with my engine management light. It went off after a couple of days and has never come on since....
 

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