UK Car Repair Questions? Ask a Mechanic for Answers ASAP
Hi, I'm Greg (Indy-Tech).Welcome to JustAnswer. I'm reviewing your question now, and will post back with your reply ASAP.Rgds Greg.
Have the shop do a injector test ,this is where the injectors can be singularly switched off .
this will let you know which one is weak .then have them removed and tested .
A good diesel shop should be able to recondition the injectors ,save you having to reprogram new injectors .
If compression is low on that one cylinder then replacing the injector is not going to change anything .
The low compression issue will have to be checked first .this could be piston rings,valves .or possible head gasket .
Need further assistance with this issue then please get back to me with the reply box below .After rating there is no further cost for any other question relating this issue .Kind regards Greg