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LittleFoot

Member Since: 25 Aug 2012
Location: east sussex
Posts: 233

Oops - delaminated inter cooler hose?

Hi folks, hope someone can shed some light on a possible ac issue?

During 350 mile run through France in 30 degree heat with AC on noticed engine hiccup/stuttering.....switched off AC and no repeat. Tested AC later on arrival at campsite, just idling and engine hunts/stutters slightly (drops 250 revs but not uniform).

Engine runs perfect without AC on so don't think it's one of hoses....

Any ideas? We've a long way yet and a hairy lab who likes his AC

2012 110 utility....

Cheers!

Last edited by LittleFoot on 17th Aug 2015 8:29am. Edited 2 times in total

16th Aug 2015 10:18am

munch90

Member Since: 26 Oct 2013
Location: guildford
Posts: 3558

As a/consequence pump and fan cut in and out it can cause a stutter due to the extra load

16th Aug 2015 2:06pm

LittleFoot

Member Since: 25 Aug 2012
Location: east sussex
Posts: 233

Cheers for the pointer.....Only started about 300 miles in......

16th Aug 2015 3:30pm

LittleFoot

Member Since: 25 Aug 2012
Location: east sussex
Posts: 233

Delaminated hose?

Just having a good check over the 110 and this hose looks very suspect.....this is the hose on right hand (drivers side) looks like an outer sheath has split over the bend?

Can clearly see a split and separation in a short outer sleeve...over the spiral, the rest of hose looks ok but can't see below this part.

Could be AC is distracting from real issue? Question is whether we need to get hose replaced here in France (could be a saga)

Last edited by LittleFoot on 17th Aug 2015 8:33am. Edited 1 time in total

16th Aug 2015 7:04pm

munch90

Member Since: 26 Oct 2013
Location: guildford
Posts: 3558

Don't think that's a a/c pipe . But only looking on my phone

16th Aug 2015 7:37pm

tomdaprince

Member Since: 23 Feb 2015
Location: IJmuiden
Posts: 54

2007 Defender 90 Puma 2.4 HT Tonga Green

The split hose seems be turbo to intercooler hose (Which is kind of a weird hose for an intercooler hose) Seems to be standard ducting hose. If this is the case I would definitely recommend immediate replacement, as this is after the airfilter you rub the risk of the engine taking in all kinds of crap.

This would definitely explain your issue as you miss pretty much all turbo pressure.

Hose part number: PNH500670

19th Aug 2015 1:06pm

Roy5695

Member Since: 15 Feb 2014
Location: Cornwall
Posts: 1123

2011 Defender 110 Puma 2.2 XS DCPU Indus Silver

the one with the metal spiral around it is definitely the intercooler hose... would need immediate replacement if it is split...

19th Aug 2015 4:21pm

LittleFoot

Member Since: 25 Aug 2012
Location: east sussex
Posts: 233

Thanks all - sent pics to dealers and they recommended it's ok to drive as the hose is a multilayer hose with sheath over the reinforcing spiral...and as no evident loss of power, excessive whistling or fault lights on.

Hope it lasts till we get back tomorrow. LR assist back from France would be a pain!
Bloody LR hoses!

25th Aug 2015 9:40am

LittleFoot

Member Since: 25 Aug 2012
Location: east sussex
Posts: 233

Well, happy to say we made it home safely under our own steam, after 1500 miles.

Just waiting for Dealer to get it in and check it over.

Thanks for all the advice.

29th Aug 2015 1:43pm

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