I have a problem with my 2.5CRD smoking thick black smoke under hard acceleration. When I rev the engine while idling the smoke appears at around 2000rpm. When I start it first thing regardless of how warm or cold, there is a plume of white smoke that disappears after 10 seconds.
I changed the air filter it made no difference. I called AA technical assistance and the guy said it might be stem valve seals and it was a big job. Also said it could be a faulty injector
My question is roughly how much does it cost
1. Leak back test
2. Replacing stem valve seals, how much is it roughly
I am near Edinburgh if anyone can recommend a garage near me
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