Intercooler Cleaning

One thing that will help a Turbodiesel go really well is to steam clean the engine bay. Don't go mad with the pressure or you'll bend the fins but force as much hot water as you can through the matrix from the top. Great amounts of mud will come out and when it does, the intercooler will work again. To do the job better still, steam clean from the underside of the intercooler, having removed it completely and flush the internal airways out with meths. Ensure all the spirit has evaporated, though before refitting because the certainty of preignition has wrecked engines before and any liquid in the intercooler could cause it to go into hydraulic lock with the same result.