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Alternator and battery changed, still low voltage
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MattTheTall77
 


Member Since: 24 Oct 2013
Location: Lincs
Posts: 266

United Kingdom 2005 Discovery 3 TDV6 SE Auto Tonga GreenDiscovery 3

gstuart wrote:


There is an Earth on the drivers side, trouble is it behind the inner wheel arch liner

Noticed it when I was fitting new struts



Thanks for the info and pic gstuart, I shall try looking under the liner and give it a check tomorrow.

And thanks Pete, the battery was changed in January to a exide premium. I still have the Bosch battery which seems fine so can try popping that back in.
  
Post #197817927th Aug 2018 7:24 pm
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gstuart
 


Member Since: 21 Oct 2016
Location: kent
Posts: 13612

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Auto Java BlackDiscovery 3

Pete K wrote:
Yes you can do that GS. Good indicator. Although things can change when there is a load

the repetive clicking in the video could suggest an earth issue or a knackered battery


Thks and see I do listen Whistle

Still remember doing that screwdriver trick on my old series

Assume then with a load ur looking for a zero reading on the multimeter on the neg lead
   
Post #197825527th Aug 2018 11:53 pm
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gstuart
 


Member Since: 21 Oct 2016
Location: kent
Posts: 13612

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Auto Java BlackDiscovery 3

MattTheTall77 wrote:
gstuart wrote:


There is an Earth on the drivers side, trouble is it behind the inner wheel arch liner

Noticed it when I was fitting new struts



Thanks for the info and pic gstuart, I shall try looking under the liner and give it a check tomorrow.

And thanks Pete, the battery was changed in January to a exide premium. I still have the Bosch battery which seems fine so can try popping that back in.


Ur very welcome , just happened to notice it and always good being able to share the info it it helps u

Hope u get on ok

Ps, have u tried a jump lead yet plse, go from the neg battery post to the engine , then see what it does
   
Post #197825627th Aug 2018 11:56 pm
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MattTheTall77
 


Member Since: 24 Oct 2013
Location: Lincs
Posts: 266

United Kingdom 2005 Discovery 3 TDV6 SE Auto Tonga GreenDiscovery 3

I did look under the engine cover to see where I would connect a jump lead but I couldn't see any exposed metal that looked obvious. I was also a bit wary of breaking anything else Embarassed
  
Post #197828328th Aug 2018 8:23 am
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gstuart
 


Member Since: 21 Oct 2016
Location: kent
Posts: 13612

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Auto Java BlackDiscovery 3

Hi

Have enclosed a pic, do u see the metal plate with the 3 x holes drilled in it , is on the Rh side

Use a multimeter set to ohms, use one test lead put on neg battery post , other test lead on that plate , see if u get continuity

If u do then put ur jump lead on the same items, neg battery post then that plate , u can always use a wire brush on that plate to get a better contact if there’s paint on it, or sandpaper to just clean a small area of it

If u don’t get a reading with ur multimeter , with ur test lead on the neg battery post use ur other test lead to go round different points on the engine until U find a a reading

So that when u put ur jump lead on u know there good earth points

Hope that makes sense


   
Post #197831128th Aug 2018 9:41 am
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MattTheTall77
 


Member Since: 24 Oct 2013
Location: Lincs
Posts: 266

United Kingdom 2005 Discovery 3 TDV6 SE Auto Tonga GreenDiscovery 3

That's great, thanks! I did see the three hole part but thought the paint may interfere, I'll give it a test tonight! Thumbs Up
  
Post #197831828th Aug 2018 9:53 am
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gstuart
 


Member Since: 21 Oct 2016
Location: kent
Posts: 13612

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Auto Java BlackDiscovery 3

hi

Ur very welcome , will interfere if there's too much paint , just thought u could take enough off to get a good earth point for ur jump lead and is near the battery

Plus know pete is also extremely knowledgeable

Hope all goes well Thumbs Up
   
Post #197832528th Aug 2018 10:00 am
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MattTheTall77
 


Member Since: 24 Oct 2013
Location: Lincs
Posts: 266

United Kingdom 2005 Discovery 3 TDV6 SE Auto Tonga GreenDiscovery 3

Sanded down the metal and connected the jump leads and it fired up! Readings were up to 14.6 volts which is the highest I’ve seen it.

Have rigged up an earth cable from there to the inner wing for now, will try and track down the other earth on the weekend.

Makes me wonder whether it had been the issue all along and need not have have fitted a new alternator battery and starter motor! >.<

Oh well, it’s been a learning experience!

Many thanks for all the help and advice, it’s very much appreciated!
  
Post #197853828th Aug 2018 6:57 pm
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gstuart
 


Member Since: 21 Oct 2016
Location: kent
Posts: 13612

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Auto Java BlackDiscovery 3

Hi Matt

Brilliant news and well chuffed it’s fixed Thumbs Up

Well apart from looking for the faulty earth lead Whistle , but at least it’s up and running

Plse let us all know what u find and what was the culprit , bet ur pleased having the multimeter

Wonder if ur heart was in ur mouth just before turning the key Rolling with laughter
   
Post #197855428th Aug 2018 7:30 pm
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MattTheTall77
 


Member Since: 24 Oct 2013
Location: Lincs
Posts: 266

United Kingdom 2005 Discovery 3 TDV6 SE Auto Tonga GreenDiscovery 3

Have to admit the first time it fired up I thought it was a one off, wasn’t until after a few starts I believed it Laughing It does fire up quicker with the new starter motor, although that could also be the fact of a decent charge going in!

And yes, the multimeter has proven very useful! Smile

Will check the arch earth on the weekend, have been meaning to try the front upper wishbones but may take a stress free weekend!
  
Post #197856128th Aug 2018 7:53 pm
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Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 10360

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

GS saves the day Very Happy
  
Post #197856328th Aug 2018 8:01 pm
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gstuart
 


Member Since: 21 Oct 2016
Location: kent
Posts: 13612

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Auto Java BlackDiscovery 3

MattTheTall77 wrote:
Have to admit the first time it fired up I thought it was a one off, wasn’t until after a few starts I believed it Laughing It does fire up quicker with the new starter motor, although that could also be the fact of a decent charge going in!

And yes, the multimeter has proven very useful! Smile

Will check the arch earth on the weekend, have been meaning to try the front upper wishbones but may take a stress free weekend!


Thumbs Up Thumbs Up

Just wondering if u can see that drivers side earth lead by removing the air filter box ???

Actually I’ve got some pics somewhere , will see if it’s on there Thumbs Up




  

Last edited by gstuart on 28th Aug 2018 8:27 pm. Edited 5 times in total 
Post #197856628th Aug 2018 8:06 pm
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gstuart
 


Member Since: 21 Oct 2016
Location: kent
Posts: 13612

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Auto Java BlackDiscovery 3

Pete K wrote:
GS saves the day Very Happy


Rolling with laughter

always a team effort pete , Plus don’t forget I’ve had good teachers Bow down Thumbs Up
   
Post #197856828th Aug 2018 8:08 pm
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gstuart
 


Member Since: 21 Oct 2016
Location: kent
Posts: 13612

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Auto Java BlackDiscovery 3

Just redone that picture so easier to see that earth lead

So u may not have to remove the drivers side wheel arch liner after all, see if these nuts have come loose , wonder if the starter motors Earth connects here ??

Or bad earth lead from this connector block to the starter motor

Indeed looks like the earth lead goes from the drivers side near the front strut and terminates here

Will wait with baited breath if this is the original issue and what u find plse Whistle


   
Post #197857228th Aug 2018 8:22 pm
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MattTheTall77
 


Member Since: 24 Oct 2013
Location: Lincs
Posts: 266

United Kingdom 2005 Discovery 3 TDV6 SE Auto Tonga GreenDiscovery 3

Thanks again, will be easier than the wheel arch! If it all comes down to a loose earth I don’t know if I’ll laugh or facepalm! Rolling with laughter possibly both!
  
Post #197859628th Aug 2018 9:39 pm
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