Td5 Hissing

**Disco Muppet** · 9th October 2013, 11:58 AM

Howdy folks.
I'm starting to make a list of stuff I want to check out when I do the head gasket early next year.
Since I've owned the car, it's had a hissing sound at low RPM, really only noticeable when doing lots of slow work or moving off the line slowly, etc.
I've done a quick search and found that it might be the flex pipe after the turbo.
Mine is still the mesh type so possibly original.
Anything else I should check out?

**Yorkie** · 9th October 2013, 12:46 PM

snakes in the glovebox? i have that issue in mine but no hissing and stops when the kids find the packet!.

what about the exhaust manifold? more a whistling noise but you might be hearing it better at low revs?.

**Disco Muppet** · 9th October 2013, 01:49 PM

No snakes

I don't think it's the manifold, although I'll probably de-web it when I do the head.
No soot, and the manifolds tend to squeal like crazy under load.

schuy1 · 9th October 2013, 03:29 PM

I would suspect the exhaust flex pipe. another possibility is the drive belt. I have noticed on occasion the Tdi's "hiss" for some reason at low revs. Dust is a idea maybe?
Other than that ? Wild Card Blog
Cheers Scott

**Disco Muppet** · 9th October 2013, 03:51 PM

It's a new belt, old one got chewed out when the fan bearing went and it hasn't changed.
I can live with it for now.

**northiam** · 9th October 2013, 05:36 PM

Vacuum pump, brake booster or egr modulator tubing vacuum leak?
Airconditioning system can hiss?

Regards

**Shamo** · 9th October 2013, 10:44 PM

I'd say definitely the turbo hose, really easy to replace with a better one.

**Disco Muppet** · 9th October 2013, 10:57 PM

Originally Posted by Shamo

I'd say definitely the turbo hose, really easy to replace with a better one.

I'm assuming you're referring to the flex joint?
If so, on the list it goes.

**Davetd5** · 9th October 2013, 11:12 PM

I'm sure your head gasket parts list is comprehensive, but here's mine from last year if you're interested:

Head reconditioned and new gasket. 186,000km Sept 2012
Parts from PCB Land Rovers:
Head Gasket set, Head Bolts, steel dowells, ex manifold studs, new Radiator, EGR by-pass, MAF sensor (VDO), turbo modulator, T/Stat, Penrite Coolant, Silicone Hoses, Engine Saver kit, rear pads, rear discs $2400.00
Lonsdale Engine Worx (head recon, exhaust man skim) $ 500.00
Oils and misc $ 320.00
Head GasketTotal $3220.00

**Disco Muppet** · 9th October 2013, 11:23 PM

Thanks Dave.
I'll be getting gaskets, headbolts, etc.
Maybe manifold studs.
Doing most of it myself so that should help.

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