Hi guys,
Had to run to Edinburgh this weekend from Cheshire and got stuck in traffic for an hour and a half virtually crawling.

Shortly after and back on the motorway traffic cleared so popped on the cruise and got going.

After a few kick downs and some grey smoke the car went into restricted performance mode. Stopped, restarted all was ok for a while but a prod of the go pedal and fault popped again. Happened 3 times on the way up..... I drove very light footed on the way back and It happened once.

Any ideas of the cause and fix?

she is on 107k and EGRS were replaced at 60k ish. Dealer serviced up to 94k

thanks

The first thing I would do is to check the top inter cooler hoses for splits. Could be as simple as that. 2017 Jaguar F Pace 25t Portfolio - still part of the JLR family 😀
2009 3.6 V8 (MY2010) - my first ever diesel! - now also gone
2004 4.4 V8 Petrol Vogue - now gone

+1

Very common issue

Is it a 3.6 or 4.4 ?

NMJ did a good writeup here for the 3.6

Yup, I did

Top inter cooler hoses would be my guess if it’s a 3.6. Cheap easy spanner at home job do both while you are at it. Most Dealers should stock the parts. There is nothing that can't be fixed with a hammer😜😜
FFRR 4.4 SDV8 Autobiography Santorini Black.
KIA E-Niro 4+
2021 Discovery 5 D300 MHEV commercial

Brilliant thanks,
Il get on it in the morning and report back........

excellent forum....

PS....... she's a 3.6

If its a 3.6 then check the two top intercooler hoses as they split for a past time!

My EGR sensors were faulty and the whole DPF was full of soot - decided to have it cleaned and refitted with new sensors rather than paying LR £2800 for a new one! 2005 L322 Vogue Gold gone
2006 L322 Vogue Black gone
2011 L322 Vogue Silver gone
2011 L322 Autobiography Black gone
2015 L405 Autobiography LWB Black gone
2019 L405 P400e Range Rover Autobiography LWB Eiger grey / black roof gone
2001 P38a 30th Anniversary Wimbledon Green gone
2019 L405 P525 Autobiography LWB British Racing Green

Ok so inspected the two hoses.....bingo the left hand one had a split along the bottom of about 3 inches, so quick visit to the stealers and bought a pair and fitted them.

No more restricted performance and no more smoke, however she has developed a small hesitation under spirited acceleration.

Any ideas?????

They are prone to air leaks above and beyond your split hose sir... Can you get it smoke tested somewhere?

Glad you found your main problem

Glad the main problem is sorted.

Not sure on the hesitation tbh. Where in the Rev range does it appear. There is nothing that can't be fixed with a hammer😜😜
FFRR 4.4 SDV8 Autobiography Santorini Black.
KIA E-Niro 4+
2021 Discovery 5 D300 MHEV commercial