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dazk2001

Member Since: 17 Jul 2023
Location: maidstone
Posts: 24

2008 Range Rover Vogue SE TDV8 Stornoway Grey

water temp gauge delay

noticed this morning the temps gauge was still on cold after driving around 5 miles after say 6 or 7 miles it came up to mid way is this normal or is there a sensor or stat problem

1st Aug 2023 4:34am

JayGee

Member Since: 27 Jul 2021
Location: London
Posts: 3187

2012 Range Rover Vogue 4.4 V8 Orkney Grey

Slow temp rise can be caused by a faulty thermostat that allows coolant to flow through the radiator during warmup. 2012 TDV8 Vogue (L322)

1st Aug 2023 6:59am

garyRR

Member Since: 13 Mar 2021
Location: Hampshire
Posts: 1463

Agree with JayGee. If the gauge does appear to be working and just seems delayed at warming up, this sounds like the thermostat. 2015 Range Rover Autobiography 4.4 SDV8

1st Aug 2023 7:16am

JayGee

Member Since: 27 Jul 2021
Location: London
Posts: 3187

Click image to enlarge

2012 TDV8 Vogue (L322)

1st Aug 2023 8:08am

dazk2001

Member Since: 17 Jul 2023
Location: maidstone
Posts: 24

thought about stat but temp gauge seems to all of a sudden go from cold to mid temp not a steady rise
also tonight i noticed it went to mid way then dropped of to cold again.

is the stat easy to get to might just change it 2008 Range Rover 3.6 TDV8 Vogue SE

1st Aug 2023 4:02pm

JayGee

Member Since: 27 Jul 2021
Location: London
Posts: 3187

PITA on the 4.4 as the whole coolant mixing housing has to be removed after taking out the main fan. Not sure on the 3.6? Parts shortages are common so you may not even get that far. Get a proper diagnosis first - could be a faulty temp sender or wiring or airlock in the coolant. 2012 TDV8 Vogue (L322)

1st Aug 2023 4:33pm

dazk2001

Member Since: 17 Jul 2023
Location: maidstone
Posts: 24

would the gap IID tool help to diagnose this ?? 2008 Range Rover 3.6 TDV8 Vogue SE

1st Aug 2023 4:36pm

jimmie

Member Since: 19 Jul 2014
Location: Warsaw
Posts: 162

2004 Range Rover Vogue 4.4 V8 Epsom Green

Yes. In live data look for "thermostat seal quality factor [%]". If value shows below 80% then you lost 20% of seal

1st Aug 2023 7:03pm

JayGee

Member Since: 27 Jul 2021
Location: London
Posts: 3187

dazk2001 wrote:
would the gap IID tool help to diagnose this ??

Yes. Watch the actual engine coolant temperature and it should go quickly to 89deg and stay there and not drop down when the car is cruising at speed and there is max airflow through the radiator. 2012 TDV8 Vogue (L322)

2nd Aug 2023 7:12am

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