Is the tickover uneven, especially when cold?
Here are a few easy things to do:
1. Check the Mass Air Flow sensor. It should be cleaned if dirty. Be careful though as you must not touch it. There is a special spray for this.
2. The EGR valves are notorious for getting filthy and gunged up. Clean with WD40 and the manifold too as far as you can. Alternatively replace egr
3. Change to a good quality 5/40 synthetic oil. This really cushions the engine sound.
4. Use SHELL V Power or BP Ulitimate diesel. Good for another 5 or 6 bhp too.
5. Remove catalytic converter and buy a stainless steel decat pipe. £68.50 on EBAY inc postage.
Edited by Monsieur Kev on 30/01/2009 at 20:49
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