Do anyone have a clue to where the earth connection in the 2.4 can be found?
The main body earth point is on the left chassis leg below the battery carrier box. You may need to remove the battery and carrier box to get to it. The main engine earth will be somewhere on the gearbox. On my JTD engine, it's on top of the gearbox, but it may be different on your 2.4 engine.
Fiat usually use a single earth lead that goes from the negative battery terminal to the chassis earth point, then on to the engine earth point on the gearbox. If you can't see the gearbox earth point, follow the lead from the chassis earth one.
Both of these need to be cleaned by removing the fixing bolts and cleaning all mating surfaces (chassis or gearbox surface, earth lead terminal and bolt heads). I used a small brass wire brush to do mine.
There's also a multi-earthing point box on the left inner wing. That may need cleaning by removing the nylock nut and cleaning all mating surfaces of the retaining lug with a wire brush. Be careful removing the nut, the stud may twist out with it. You may need a thin spanner to hold the square on the stud while undoing the nut. When I had mine off, I also opened the box to spray the internal connectors with electrical contact cleaner.
.
Attachments
Last edited: