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Alternator DIY?
- Thread starter NXI20
- Start date
blank screen. A beep is heard and a red batter/generator warning pops up. the music and screen returns. It happens again and when it occurs for the 3rd time I notice a 1 amp blip
upwards on the amp meter. Then the fading in and out of the PCM stops but the dash warning goes on and off until I arrive home.
I put a very rudimentary tester on the battery which checks alternator and that reads ok. I have done another run and monitored the amps which are constant at about 13.5 apart
from the blip to 14.5 every now and then. This time I don't just get a battery/generator warning light I momentarily get the Tip has gone to emergency run but that goes as soon as
it appears.
I have convinced myself it must be the alternator and will get a proper test done. If it is a new alternator (unless someone else has an alternative suggestion) how hard is
a DIY replacement. Anyone done one?
Started a new business last week so the last thing I wanted was a large bill so soon!!!
RB
Thank you
Adrian
If you're not far from North London, I actually have an alternator with a new regulator installed that I have had lying around for years which you can try installing to see if that's it.
Took 2 to 3 hours but I went slow. Things that might help:
1 - The forward most retention bolt is a swine to get to and to get enough leverage on
2 - The accessory belt needs a long bar (or scaffold pole) and/or another person to get the belt back onto and around the tension wheels
3 - Some plastic clips and hoses will be brittle so take care.
It is easy enough. Good luck.
Bruce_english
New member
It does not sound like the alternator wiring breaking down itself is an issue so try the simple regulator replacement first.
I have replaced this myself using part number ‘Bosch F00M144136‘ from whatever reputable source you select. I believe you can very easily buy for under £40. Autodoc have this part right now for £28 for example, but are not the fastest for delivery times as they are in Germany.
The only thing to be careful of in addition to the of guides online for this is to be careful around the small coolant host which was mentioned by an earlier post - part number 996.106.223.52 is what I replaced when doing mine just to be safe. The plastic pipe joiner goes brittle over the years and can break very easily but it is only a small pipe so you would not lose much coolant when replacing that.
Good luck
J
devans
New member
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