02/07/2026
This was an interesting one today! Glow plug fault? Simple right? Well....
This had been to another local garage to us behind mcdonalds for the parts cannon. Went back 3 times and the garage's final word was "there's no issue" however the engine light was illuminated and even the van knew there was a problem! π
So we firstly checked the basics, glow plugs brand new and tested fine, fuse - all fine, brand new glow plug relay - all fine. Checked wiring - all fine. Tested all connections to glow plug relay - power was fine but no earth. Opened the wiring loom to trace the earth, the earth lead was burried round the back of the engine and missing a bolt! Sometimes faults may be simpler than you think but is it better throwing parts at a vehicle and guessing π°π°π° or checking first? We are now assisting the customer into claiming the costs back from the other garage that he shouldn't have had to pay in the first place.