Advertise on fullfatrr.com »

Home > Technical (L322) > Loud knocking on startup
Post Reply  Down to end
Page 1 of 1
Print this entire topic · 
Furnitureman



Member Since: 26 Jan 2021
Location: Leicestershire
Posts: 346

United Kingdom 2012 Range Rover Westminster 4.4 V8 Cairns Blue
Loud knocking on startup



My 2012 does this in the morning ive changed all tensioners etc on front of engine just done an oil change for smith and allen oil and its still there anyone got any ideas, after a min or so the noise is gone 2012 Range Rover Westminster 4.4 TDV8
2006 Discovery 3 HSE 260k miles and still going strong with a new owner

Post #647328 4th Nov 2022 5:05pm
View user's profile Send private message View poster's gallery Reply with quote
Merchy



Member Since: 14 Feb 2021
Location: North Wales
Posts: 1181

United Kingdom 2006 Range Rover Vogue Td6 Zermatt Silver

I am not an expert, but if the noise is not coming from the pulleys / tensioners / belts area, try listening with a long steel rod placed on various parts of the engine and your ear ( Obviously not too near moving parts !! )
It also sounds like it could possibly be from the injectors / tappets.

It may sound daft to those who have never used these - but a listening stick placed against parts of the car and the other end placed against the casing of ear defenders is a superb way of determining where a noise is coming from. We do this at sea all the time with high accuracy. Using ear defenders cuts out all the background noise and acts as an amplifier. The listening stick can be placed into very hard to reach areas.

Good luck Thumbs Up

Post #647337 4th Nov 2022 6:03pm
View user's profile Send private message View poster's gallery Reply with quote
kevinp



Member Since: 28 Sep 2019
Location: Telford
Posts: 1206

United Kingdom 2011 Range Rover Autobiography TDV8 Santorini Black

Could be the fan. Can you rock the blades? Engine stopped obviously.

Post #647339 4th Nov 2022 6:07pm
View user's profile Send private message View poster's gallery Reply with quote
Furnitureman



Member Since: 26 Jan 2021
Location: Leicestershire
Posts: 346

United Kingdom 2012 Range Rover Westminster 4.4 V8 Cairns Blue

Going to get a stethoscope and I was thinking about the fan being an issue as it doesn’t do the loud jet sound on start up anymore and it’s much worse now it’s colder 2012 Range Rover Westminster 4.4 TDV8
2006 Discovery 3 HSE 260k miles and still going strong with a new owner

Post #647350 4th Nov 2022 7:23pm
View user's profile Send private message View poster's gallery Reply with quote
Furnitureman



Member Since: 26 Jan 2021
Location: Leicestershire
Posts: 346

United Kingdom 2012 Range Rover Westminster 4.4 V8 Cairns Blue

Going to get a stethoscope and I was thinking about the fan being an issue as it doesn’t do the loud jet sound on start up anymore and it’s much worse now it’s colder 2012 Range Rover Westminster 4.4 TDV8
2006 Discovery 3 HSE 260k miles and still going strong with a new owner

Post #647352 4th Nov 2022 7:39pm
View user's profile Send private message View poster's gallery Reply with quote
GraemeS



Member Since: 06 Mar 2015
Location: Wagga area
Posts: 2475

Australia 2012 Range Rover Autobiography TDV8 Bournville

A big screwdriver works very well as the tip can be moved small distances to find the exact spot and the end of the handle doesn't poke holes in one's ear.

Post #647387 5th Nov 2022 7:19am
View user's profile Send private message View poster's gallery Reply with quote
JCW



Member Since: 13 Apr 2013
Location: Cotswolds
Posts: 863

United Kingdom 2010 Range Rover Autobiography TDV8 Santorini Black

Agreed, don’t waste money on a stethoscope, a large / long screwdriver is just, if not more effective + can be used for its intended purpose also Thumbs Up

Post #647389 5th Nov 2022 7:50am
View user's profile Send private message View poster's gallery Reply with quote
dhallworth



Member Since: 10 Oct 2011
Location: Glasgow
Posts: 3072

United Kingdom 2012 Range Rover Autobiography TDV8 Baltic Blue

That does sound plasticky. I agree with the above about checking the fan for play or obstructions.

David. 2002 4.6 Vogue SE - Alveston Red with Lightstone Leather
2007 Range Rover Supercharged in Java Black with Ivory Leather
2012 Range Rover 5.0 SC Autobiography in Indus Silver with Jet/Ivory Interior
2012 Range Rover 4.4 TDV8 Autobiography in Baltic Blue with Sand Interior

Post #647402 5th Nov 2022 11:00am
View user's profile Send private message View poster's gallery Post Reply
Post Reply  Back to top
Page 1 of 1
All times are GMT

Jump to  
Previous Topic | Next Topic >
Posting Rules
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum



Site Copyright © 2006-2024 Futuranet Ltd & Martin Lewis
fullfatrr.com RSS Feed - All Forums


Switch to Mobile site