Hi all freelander 2..2.2 dsl ..2008 ...throttle body making a new whiling noise and other strange noises, not all the time but mainly when engine is shut down and only for a few seconds after that ..been told and herd it before I think, its the throttle body needs replacing ..I can do this no problem and have seen replacement on web sites from £80 upwards ..my question is this a plug and play and go job or will the thing need setting up on a diagnostic type job at a Landrover garage ?? few say no some say yes..... dont want to start the job and get stuck ..any help appreciated

The plastic gears fail. You can buy repair kits for £30.
https://www.ebay.co.uk/itm/333581617648?ha...SwGYZfwUpf Jules

I have had a few FL2s and the throttle body always makes a whining noise for a few minutes when you switch off. Sometimes its a few seconds and other times 5 minutes or more. I would leave it alone and live with it. I have only had one fail and need replacing. 3 x FL1 2 manual + 1 auto
5 x FL2 4 manual + 1 auto
Now Discovery Sport P250 MHEV SE

They do make a noise after engine switch off, Its resetting its self.

Mine only does it for around 20 to 30 seconds at most.

The TB is supposed to have a calibration routine run, after a replacement is fitted. Mine had be replaced before I got it, but I had a dip in power as I changed gear. However after I ran the calibration routine using SDD, the dip in power on the gear change went away, so presumably the uncalibrated TB wasn't opening fast enough, when power was required after I'd changed gear. 2009 Rimini Red SE TD4. Soon to be sold.
Hyundai Ionic 5 Ultimate on order.
Gone. 2006 Tonga Green i6 HSE.

The throttle body on a diesel should only come into play when you stop the engine when it closes to restrict air to the engine, stopping the engine from running running on if it fuels itself from excess oil. It doesn’t play any part in the fuel to air ratio in a Diesel engine as it does in all petrol fuelled engines.

@ Bossbob
yes the engine should run with the TB unplugged. Its one way to test if the TB is playing up ie it drives better with the TB unplugged.

@Meatloaf
My TB whines for seconds to several minutes after switching the engine off. The actual duration of the high pitched whine varies a lot. Its done it for the last 7 years since I bought it. But its always a steady constant whine with no other noises, except a final click.
You said "throttle body making a new whiling noise and other strange noises" (sic) hence me thinking something is now failing inside.

Interestingly, my two previous FL2s didnt have a TB whine (both manual TD4). So is it only normal on later models ? Jules

No, my 2007 TD4’s throttle body wines and clicks as the flap resets once the engine has stopped, and has since I bought it.

Thanls all ...I agree , Yes a whine is normal with a few clicks for a few seconds after shut down, but mine is making rather more nose than that albeit randomly than that normal bit, I have no engine run on ..and all seems OK apart from noise ...but just was going to replace to avoid any break down ... still not 100% weather need to be set up on LR diagnostics system TBH ...

Some code readers have the option to reset the TB. On the other hand some people have said it resets it's self over time.

It's the grinding and loud clicking noise that means it needs replacing, rather than the whining noise after shutdown which is normal.

I replaced mine and never reset anything and it runs just fine. Steve

2008 TD4 HSE Auto, Zermatt Silver

ok all thanks for help fitted replacement and all seems fine did not do any resetting at all just fitted and started engine ..runs OK no noise ...taken old one apart and yes the gear had stripped as thought...

BossBob wrote:

The throttle body on a diesel should only come into play when you stop the engine when it closes to restrict air to the engine, stopping the engine from running running on if it fuels itself from excess oil. It doesn’t play any part in the fuel to air ratio in a Diesel engine as it does in all petrol fuelled engines.

My throttle body failed one evening after making grinding noises for weeks. The nice man from the AA rammed a big screwdriver through the butterfly - so it was permanently open. Ran like this for weeks until I eventually got around to changing it, the thing that surprised me was the car ran perfectly with a non-functioning throttle body. Now mine was an auto so possibly didn't need the air to be shut off during gear changes.

Didn't calibrate the new one.

If it had failed again I would have removed the gears and run with it wide open rather than waste money on something that serves no apparent use, but when it fails can prevent the car from stating. Tangiers Orange - gone, missing her
Replaced by Ewok what a mistake - now a happy Disco Sport owner

The main reason the TB is there, is to improve functionality of the EGR circuit, the other benefits (reducing NVH) are of minor consideration, and to most normal people, the engine would seem to run just as well without it.
In fact when an ERG delete was fitted to the TDV6 used in the D3/4, it was normal practice to simply remove the TB butterfly at the same time, as it also has problems with gear stripping, and once the EGR is blanked, it serves no other real purpose, except for the minor improvements in NVH detected with specialist equipment. 2009 Rimini Red SE TD4. Soon to be sold.
Hyundai Ionic 5 Ultimate on order.
Gone. 2006 Tonga Green i6 HSE.