monorfolk

I'm tempted to run a new earth cable from the bulkhead grounding point (therefore the engine with the extra wire) direct to the battery but am worried if the engine ground IS dodgy, the starter motor current will prefer to use this route and burn it out. I shall first check out the engine ground cable if I can find it..

Hi, Thanks for all the suggestions. On further measuring the extra bulkhead instrument cluster grounding point to the grounding point on the engine seems good. Possibly its an engine to battery ground fault but I would have assumed in that case the starter motor would have issues due to the large current draw therefore voltage drop. Looking back at previous posts monkies suggestion to create a few new grounding wires seems the way to go. Thanks again..

Hi, I have a P reg Defender 90 300Tdi. I had some problems with the coolant temp gauge so replaced the rad, temp sender and meter to modern versions. All is now good (not overheating) but when I switch on the headlamps the temp gauge rises from 90 degree to 100, indicating a grounding issue. An extra ground cable has already been added from the bulkhead grounding point (that goes to the instrument cluster) to a bolt just under the air filter, as the engine ground is OK, zero resistance to the -ve battery terminal and starts fine, but the issue still remains. There is about a 3 Ohm resistance from there to the engine which I think is the issue. Any suggestions on where on the engine can I route the extra bulkhead grounding cable to ensure a good earth return? I would assume where the starter motor is grounded but somewhere more convenient would be good.