Driving the wife's Fl2 the other day and there was suddenly an almighty ratttling from the transmission area and a loss of power , the car wouldn't rev above 2500rpm . I coasted it down a hill onto a flat stretch of road where it appeared to be ok . I took the car to my LR tech who checked it over and couldn't find anything wrong , he did say it was possibly a ptu issue . I've since been told it could be a swirl flap failure , the car runs and drives fine now and 4wd seems OK . Anyone got any ideas please.

Mark 2009 FL2 TD4 SE (Sadly gone)
2007 FL2 TD4 GS (The wifes , gone after 8 great years)
2012 FL2 SD4 SPORT LE(Gone and missing it)
2015 DISCOVERY SPORT 2.2SD4 HSE (Now gone)
2014 Ford Bmax 1.0 ecoboost ( Gone but what next )
2014 Ford Focus 2.0tdci Zetec S (Gone,but what a car)
2020 Ford Fiesta ActiveX 1.0 Ecoboost
2024 Skoda Kodiaq 1.5 Tsi SEL

Codes read would be a good place to start. First thought was turbo hose starting to go can be intermittent with powerloss at first, and can cause strange noises from turbo as here - https://www.freel2.com/forum/topic35802.html?highlight=turbo+hose

No codes showing , just had a hose replaced from airbox which had split and was causing a weird noise , car runs sweet and pulls extremely well , just annoying as it's just had a replacement clutch/flywheel/rear main seal/front springs and rear discs and pads .

Mark 2009 FL2 TD4 SE (Sadly gone)
2007 FL2 TD4 GS (The wifes , gone after 8 great years)
2012 FL2 SD4 SPORT LE(Gone and missing it)
2015 DISCOVERY SPORT 2.2SD4 HSE (Now gone)
2014 Ford Bmax 1.0 ecoboost ( Gone but what next )
2014 Ford Focus 2.0tdci Zetec S (Gone,but what a car)
2020 Ford Fiesta ActiveX 1.0 Ecoboost
2024 Skoda Kodiaq 1.5 Tsi SEL

If you had a flap drop in your chamber you would know .it cost well over £1500 bent valves.if your not sure get the later inlet manifold fitted.before and damage.

My 2007 car did the same as yours I.e. huge clatter from engine then no revs. One piece of swirl flap had broken off passed through the EGR valve and straight through the engine, one piece lodged in the EGR keeping it open. Engine very difficult to start and wouldn't run very well until EGR taken off and swirl flap removed.

Once EGR cleared and remaining flaps removed car ran fine for thousands of miles and was fine when I traded it for a 2014 model. Hopefully you'll be lucky as well!

Tried firing the Fl2 up today and it doesn't look promising , it won't turn over at all . It's only been stood a week and the battery is a good one . I'll update on the outcome of this .

Mark 2009 FL2 TD4 SE (Sadly gone)
2007 FL2 TD4 GS (The wifes , gone after 8 great years)
2012 FL2 SD4 SPORT LE(Gone and missing it)
2015 DISCOVERY SPORT 2.2SD4 HSE (Now gone)
2014 Ford Bmax 1.0 ecoboost ( Gone but what next )
2014 Ford Focus 2.0tdci Zetec S (Gone,but what a car)
2020 Ford Fiesta ActiveX 1.0 Ecoboost
2024 Skoda Kodiaq 1.5 Tsi SEL

Well it's made me a liar , the battery is dead so that's a bonus . Looks like another battery and time to say bye bye to the old girl .

Mark 2009 FL2 TD4 SE (Sadly gone)
2007 FL2 TD4 GS (The wifes , gone after 8 great years)
2012 FL2 SD4 SPORT LE(Gone and missing it)
2015 DISCOVERY SPORT 2.2SD4 HSE (Now gone)
2014 Ford Bmax 1.0 ecoboost ( Gone but what next )
2014 Ford Focus 2.0tdci Zetec S (Gone,but what a car)
2020 Ford Fiesta ActiveX 1.0 Ecoboost
2024 Skoda Kodiaq 1.5 Tsi SEL

I bought a 2008 SE with a misfire, and low compression on No2 cylinder, so was expecting an ingested port deactivation flap to be the culprit. However I found a nut in the combustion chamber

Click image to enlarge

Click image to enlarge

HI Nodge.
I was just about to post saying that a chap on another forum and recently done some work on his car due to possible swirl flap problem which in turn being changed over by someone else had caused trouble, also that i have the weekend gone removed my manifold and replaced it with a swirl free manifold, i found it be a time consuming job, but hopefully worth it.

Am I right in thinking that a 2014 TD4 does NOT have the swirl flap system? or is this a failure I need to worry about (and pro-actively fix)? 2014 Freelander 2 TD4 Manual Dynamic
1956/7 88" Series One Land Rover
1956/7 88" Series One Land Rover - undergoing restoration

Yes you are right no swirl flaps.

Thanks 3disco - one less thing to worry about  2014 Freelander 2 TD4 Manual Dynamic
1956/7 88" Series One Land Rover
1956/7 88" Series One Land Rover - undergoing restoration

Take a look on the manifold cover, see what the clock pointer says, i presume the later ones came swirl flap free,

1

This is one i removed the swirl flaps from
2

Which i fitted to the FL2 recently, also added new seals.

3

4

I did the fuel filter at the same time.
5

New battery fitted and the pipe from the airbox replaced and she's running like a dream now , nothing like the 153k which is on the clock . It looks as if it will be with us until the end now for what it's now worth and the cost to change for a Disco sport is way too much .

Mark 2009 FL2 TD4 SE (Sadly gone)
2007 FL2 TD4 GS (The wifes , gone after 8 great years)
2012 FL2 SD4 SPORT LE(Gone and missing it)
2015 DISCOVERY SPORT 2.2SD4 HSE (Now gone)
2014 Ford Bmax 1.0 ecoboost ( Gone but what next )
2014 Ford Focus 2.0tdci Zetec S (Gone,but what a car)
2020 Ford Fiesta ActiveX 1.0 Ecoboost
2024 Skoda Kodiaq 1.5 Tsi SEL

Great result bxzx16v, it does seem that many ills are cured with a new battery - well worth remembering & getting it checked as no1 diagnostic step  2014 Freelander 2 TD4 Manual Dynamic
1956/7 88" Series One Land Rover
1956/7 88" Series One Land Rover - undergoing restoration