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JackNorris
Member Since: 06 Jul 2012
Location: Beds/Bucks Border
Posts: 1879
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Had an interesting drive home last night, coming off the m1 and the steering suddenly felt a bit all over the place.
Limped home and parked up.
Today the engine started seemed to make a whooshing/whistling sound Which I don’t remember hearing before.
I’ve also found that when I start it and idle the car battery voltage isn’t increasing from 12.1. When I went for a run it was all over the place from 12.6 to 14.7 and wasn’t sitting still.
I’m thinking alternator maybe at fault but the sound was strange. Almost like air escaping front left of the engine. After idling for a while it went.
How quick on start would you expect to see voltage pick up?
Any thoughts MY2023 Discovery 5 R-Dynamic 3.0
MY2020 Discovery 5 Landmark 3.0 - SOLD
MY2005 Discovery 3 V8 4.4 HSE - SOLD
MY2019 Discovery 5 SE 3.0 - LR Replaced !
MY2005 Discovery 3 S 2.7 - SOLD
MY2016 Discovery 4 Graphite - SOLD
MY2015 Discovery 4 SE Tech - SOLD
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11th Oct 2020 9:17 pm |
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kajtzu
Member Since: 11 Aug 2017
Location: Helsinki
Posts: 6690
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I have an integrated voltage meter connected to the cigarette lighter along with two USB sockets. The voltage should go up immediately upon engine start and it’s not supposed to “jump around”. Don’t remember the proper voltage from the top of my head but I’ve seen 14.7 -ish volts usually.
It’ll (= should) reduce the voltage in 20-30 minutes, or so.
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11th Oct 2020 9:28 pm |
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JackNorris
Member Since: 06 Jul 2012
Location: Beds/Bucks Border
Posts: 1879
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Thanks
This video is the noise I have
This thread https://landroverforums.com/forum/lr3-28/a...dle-64954/
Safe to drive to the garage is the question... MY2023 Discovery 5 R-Dynamic 3.0
MY2020 Discovery 5 Landmark 3.0 - SOLD
MY2005 Discovery 3 V8 4.4 HSE - SOLD
MY2019 Discovery 5 SE 3.0 - LR Replaced !
MY2005 Discovery 3 S 2.7 - SOLD
MY2016 Discovery 4 Graphite - SOLD
MY2015 Discovery 4 SE Tech - SOLD
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11th Oct 2020 9:46 pm |
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kajtzu
Member Since: 11 Aug 2017
Location: Helsinki
Posts: 6690
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Never heard that sound before, sorry. The guesses/root causes presented in that other URL sound all reasonable.
If you need the parts for auxiliary belts, tensioners and pulleys - they’re here https://www.disco3.co.uk/forum/post1891719...20#1891719
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11th Oct 2020 9:55 pm |
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pjm-84
Member Since: 04 Oct 2016
Location: Hampshire
Posts: 2555
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Me neither but I changed my belts, tensioner and idler within a few weeks of having the car @ 105k. Slight bearing issue within the idler
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11th Oct 2020 10:31 pm |
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JackNorris
Member Since: 06 Jul 2012
Location: Beds/Bucks Border
Posts: 1879
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With the battery voltage not increasing at idle I’m thinking it must be alternator related somewhere along the line . MY2023 Discovery 5 R-Dynamic 3.0
MY2020 Discovery 5 Landmark 3.0 - SOLD
MY2005 Discovery 3 V8 4.4 HSE - SOLD
MY2019 Discovery 5 SE 3.0 - LR Replaced !
MY2005 Discovery 3 S 2.7 - SOLD
MY2016 Discovery 4 Graphite - SOLD
MY2015 Discovery 4 SE Tech - SOLD
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11th Oct 2020 10:33 pm |
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Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10603
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Yeah alternator
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11th Oct 2020 11:25 pm |
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Charliecloud
Member Since: 31 Jul 2014
Location: Tonbridge
Posts: 980
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Plus 1 for the alternator - you need a DENSO Alternator DAN991.
Mine cost me £165 in 2019 as a brand new item not refurbished.
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12th Oct 2020 10:13 am |
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Duc750
Member Since: 07 Aug 2017
Location: northampton
Posts: 314
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whooshing noise points to the viscous fan - it seems to be the first thing the ECU kicks in when there's a fault or potential fault
that kicking in would in turn show up any belt issues as it creates quite a lot of drag
voltage wise mine starts up somewhere between 14.5 and 15v straight away dropping down to low 14s after a while and then is rock solid.
I do have the mother of all batteries on mine though and on the old battery the start voltage was slightly less - I think because the Odyssey is slightly different internally it will take almost whatever the alternator can give quite happily 05 D3 V8 HSE, LR Passion tree bars, wildbear compressor guard, LRP switch panel, ARB rear locker + compressor, Trigger 6 shooter electrical system
12 RRS SDV6 HSE (Hers) - Gone and replaced with an I Pace - I can tell you now EV is not the future yet
Metalian Camper trailer
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12th Oct 2020 12:30 pm |
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kajtzu
Member Since: 11 Aug 2017
Location: Helsinki
Posts: 6690
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I checked this morning and at cold start voltage went to immediately 14.6-14.7 and stayed there during the pre-school delivery run
In case it matters I’ve got a Bosch AGM battery.
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12th Oct 2020 2:15 pm |
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MintyHit
Member Since: 25 Jul 2017
Location: Bradford on Avon
Posts: 229
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Make sure it isn't your ac compressor by switching the eco button.
My compressor bearings are on the way out and make a similar noise.
Thanks
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12th Oct 2020 2:53 pm |
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JackNorris
Member Since: 06 Jul 2012
Location: Beds/Bucks Border
Posts: 1879
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Thanks all
Now at the local specialists
The sat nav screen started going dim which I think may also be a sign of alternator
Still no warning lights tho MY2023 Discovery 5 R-Dynamic 3.0
MY2020 Discovery 5 Landmark 3.0 - SOLD
MY2005 Discovery 3 V8 4.4 HSE - SOLD
MY2019 Discovery 5 SE 3.0 - LR Replaced !
MY2005 Discovery 3 S 2.7 - SOLD
MY2016 Discovery 4 Graphite - SOLD
MY2015 Discovery 4 SE Tech - SOLD
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13th Oct 2020 6:27 pm |
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Duc750
Member Since: 07 Aug 2017
Location: northampton
Posts: 314
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My D2 had a phase go down in the reg rec so it was still putting an output out above 12v so none of the warning lights came on but it was week as a kitten and only pushing out about 12.2 volts. the charge warning light only really comes on when there is nothing over 12v I believe 05 D3 V8 HSE, LR Passion tree bars, wildbear compressor guard, LRP switch panel, ARB rear locker + compressor, Trigger 6 shooter electrical system
12 RRS SDV6 HSE (Hers) - Gone and replaced with an I Pace - I can tell you now EV is not the future yet
Metalian Camper trailer
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13th Oct 2020 7:31 pm |
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