Thread: Diesel injector cleaner additive ?

Don’t start using “cleaners”, likelihood it will just be a waste of money.

If you have recently changed the glow plugs then you need to check that they are working. Have you tested the glow plug relay? When you switch on the ignition and the dash glow plug light is on, you can measure the voltage at the glow plug. If it is not returning the correct voltage then the relay isn’t switching them on properly. I forget what the correct value is. I fixed WL-T engined Bounty a few years ago after the owner threw money at it replacing things without running any diagnostics, just guessing. Waste of money! From memory the glow plug relay sits next to the main fuse box.

If the glow plugs are operating correctly then you should google for proper diagnostic tests which on an engine of that era are generally not that hard to accomplish. Before you get into the injectors I would start with fuel filtering, delivery, etc. Pretty sure there’s a diagnostic for the fuel delivery system as well. Just work through from start to finish and pretty soon you will find the culprit. It’s important to be systematic.

The best thing you can have is the factory workshop manual that will have every system laid out from A-Z with comprehensive diagnostics. They are usually in the form of a browser based data base, rather than a book. Spend some time looking for it and you will probably find it, most of them are out there.