Vehicle & Technical > Range Rover

P38 power drain.

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ScrumpyJack:
Well after a couple of weeks hard graft I’ve managed to get a bit of a breather for a week, so can now start having a look at the car again,

So, where do you find the alarm ecu, I’ll try unplugging that to check, but just out of interest, I stuck a bat tester on it tonight while it was running, with nothing on, it was reading 14v, with all the lights and the heater full blast it reads 11.24ish, even with the revs right up only 11.24ish.

Does this seem a little low, might try a new alternator as it's still got the original 1 on making it 13 year old, I have also noticed after I started the car one day drove it for about 10 mins the alternator was red hot, even after a couple of hrs it was still very hot, my other V8's aren’t like that.

Rossko:

--- Quote from: "ScrumpyJack" ---.... even with the revs right up only 11.24ish.  
Does this seem a little low,
--- End quote ---


Yes!  Its knacked.  It might just be worn brushes at that age.  Mind you it is just possible you have a bad earth connection between engine-body-battery.  Check for voltage between battery neg post and alternator body while doing that load test, should be less than 0.5V difference.

cheers, Ross K

ScrumpyJack:
Yipeeeeeee,
New alternator did the job, loads of charge now with everything on, managed to get a 120amp brand new of a pal for £100, which was nice  :D

Just need to sort out the heating now :?

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