Hi everyone - this is my first post here, I hope I can learn from some of your knowledge!
My wife's most prized possession is her Mahindra eMax25L HST. About a week ago it started blowing the 40amp fuse that is in front by the battery and radiator when we go to start it. We've been through half a dozen fuses now trying different things and I'm starting to have nightmares about this! I've done a lot of searching on this forum and have found some ideas for troubleshooting, but so far haven't had any luck. Once after replacing a fuse it did start again, a few times, but then it eventually blew that fuse too and we haven't been able to get it to start again since. We don't have a Mahindra dealer anywhere near us and are afraid it might be difficult to get professional help with this, so we're trying to figure this out ourselves.
The key can be turned to run and the instrument panel will light up, but once you turn it to start the fuse blows immediately.
So far, we have:
1. inspected all wires for damaged insulation/fraying. I did find one small wire going to the ECU which had worn down a bit against the engine, but it was barely through the insulation (if at all), and I taped it up really well.
2. Checked the continuity with a multimeter between the negative terminal of the battery and different bolts on the engine and frame. The ground seems to be good.
3. took the lower part of the dashboard off and looked for frayed wires at the ignition switch. It looks good. The upper part of the dashboard I need to get a larger socket to be able to remove the steering wheel first and it also looks like I'll have to reach under there and get a castle nut off the throttle lever.
4. tried unplugging the small separate spade connector from the starter solenoid. It still blew the fuse even without the starter solenoid plugged in.
5. checked for continuity between the spade connector going to the starter solenoid and ground. There was none.
6. unplugged the temperature sensor on the coolant line out of the engine to the radiator. (I read on this forum that sometimes these short out internally)
Are there any other thoughts? Thanks so much for any ideas!
My wife's most prized possession is her Mahindra eMax25L HST. About a week ago it started blowing the 40amp fuse that is in front by the battery and radiator when we go to start it. We've been through half a dozen fuses now trying different things and I'm starting to have nightmares about this! I've done a lot of searching on this forum and have found some ideas for troubleshooting, but so far haven't had any luck. Once after replacing a fuse it did start again, a few times, but then it eventually blew that fuse too and we haven't been able to get it to start again since. We don't have a Mahindra dealer anywhere near us and are afraid it might be difficult to get professional help with this, so we're trying to figure this out ourselves.
The key can be turned to run and the instrument panel will light up, but once you turn it to start the fuse blows immediately.
So far, we have:
1. inspected all wires for damaged insulation/fraying. I did find one small wire going to the ECU which had worn down a bit against the engine, but it was barely through the insulation (if at all), and I taped it up really well.
2. Checked the continuity with a multimeter between the negative terminal of the battery and different bolts on the engine and frame. The ground seems to be good.
3. took the lower part of the dashboard off and looked for frayed wires at the ignition switch. It looks good. The upper part of the dashboard I need to get a larger socket to be able to remove the steering wheel first and it also looks like I'll have to reach under there and get a castle nut off the throttle lever.
4. tried unplugging the small separate spade connector from the starter solenoid. It still blew the fuse even without the starter solenoid plugged in.
5. checked for continuity between the spade connector going to the starter solenoid and ground. There was none.
6. unplugged the temperature sensor on the coolant line out of the engine to the radiator. (I read on this forum that sometimes these short out internally)
Are there any other thoughts? Thanks so much for any ideas!