JS Autocare can test your diesel injectors by doing a leak back test, and scoping the signals and current to the injectors to correctly identify the injector causing your running issues.
It is always recommended to have the fuel filter replaced and a BG fuel treatment added in the first instance, as when these get blocked or full of water, they can often be the route cause of poor starting and/or running issues, and cost far less than replacing or unnecessarily testing other diesel engine components.
A full diagnostics check is also performed on the diesel fueling and intake system at the same time just to make sure there are no other possible reasons behind your engine troubles.
We can then have them reconditioned at a reputable diesel workshop, and refit them, even recoding them if needed I.E Mondeo TDCI or Mercedes Etc, supplied with a guarantee for peace of mind.
Please call if your near Chorley and require help with an injector issue on 01257367839