Hi guys.

I've had my 2006 4,2SC a couple of months now and think it's fantastic.

When I viewed the car, I noticed that on hard acceleration there was (and still is) a whooshing sound coming from the front O/S area. Also when pushed hard, the car picks up nicely, but will gasp for breath towards the upper rev limits. It does run beautifully though.

I did ask the seller if the noise was normal and he said "Yes, it has always been like that (he only owned for a couple of months and had to sell - genuine reason and I believe him) but he did mention that the garage where he bought the car (not a LR dealership or specialist) had damaged/bent the pipe to the air filter box when servicing the car before handover.

Today, I started the car and it made a whistling sound (like a pipe sound, not a squeak) until it was up to speed 4-5 minutes after take off. Then 20 minutes later I got the warning "Engine Operating at Reduced Power".

Any ideas would be very much appreciated.

Thanks in advance.

First thing I would check is the supercharged coolant pump. This will give this message and if not already rectified yours is probably still running backwards there's quite a bit on here about it if you do a search. The difference between theory and reality is that in theory it will work.

Check the obvious things like broken/ill fitting pipework... Even the smallest of air leak will upset it...

It doesn't have a FBH does it? A rare option on an SC but is a possibility sir...

Dave and Craig, many thanks for the replies.

BTW, what is FBH?

FBH = Fuel Burning Heater.

It's an auxiliary heater you can program to heat the cabin at a preset time or via an additional remote fob.

If you have it, you will find Aux Heater setting on the screen menu somewhere

PM2 GONE 2010 Facelifted 3.6 TDV8 - Stornoway Grey + 22" Overfinch Olympus
HAVE 1999 Discovery 2 GS 4.0 V8 - Silver - Off Road Toy
GONE 2013 L405 4.4 SDV8 Vogue. Black with Silver roofline and 22" s
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Last edited by paulmoran2 on 25th Nov 2014 2:22pm. Edited 1 time in total

Thanks, Craig. I did see that in the manual but don't know if I have it. I'll check, but hopefully it's not there - enough fuel burning going on as it is!

I suggest to have a good look at the pipe work from air filter to supercharger. Craig is correct, any leak after the MAF (mounted just after the air filter) will upset the air/fuel mixture ratio and the lambda sensors will pick up the exhaust not being correct. The ECU will try to adjust but can't get it right with fuel trim and it can throw a fault. HOWEVER, normally that is the Engine Management Light, although I have had both on my 2006 until I updated the ECU software (and solved the gearbox solenoid issue as well) and haven't had problems after that till we left Nigeria.

So bottomline, try to get your ECUs updated, check the air ducting and coolant pump wiring first and you may find that all will be well after that . Oh and check spark plug replacement as well maybe  MY 2010 5.0 SC Galway green and sand interior!!
Have the Faultmate MSV2 Extreme to be tinkering with the settings etc. !!

Meaning when the FBH is working it could be mistaken for an air leak

Thanks Paul, ebajema and Craig. I appreciate your knowledge and help.