Sudden loss of power (limp mode)

flatpack · 27-08-2014 4:13pm #1

My 03 tdi 100bhp is going in limp mode due to perished vacuum hoses and I think vacuum/servo pipe with non-return valve need to be replaced.
what type of vacuum hose I need and that servo vacuums pipe with non return valve would cost around 45€ from vw dealer else if I can find non-return valve only somewhere.
any suggestion or recommendation?

is this any good to replace all?
http://www.amazon.co.uk/Universal-Motorsport-Engine-Silicone-Dress/dp/B00I0D6KGC/ref=aag_m_pw_dp?ie=UTF8&m=AJYURVFPR9WI1

Chimaera · 27-08-2014 4:39pm

That Amazon kit may not be suitable. You need vacuum rated tubing - any motor factors will have it in a range of diameters. Usually it's the smaller tubes that perish so I'd go and replace these first before getting into the more expensive components.

flatpack · 27-08-2014 5:19pm

Chimaera,
non return valve is broken as you see cable tie around it and when brake paddle is pressed I can hear noise of air sucked in.

Chimaera · 27-08-2014 5:36pm

Ah. In that case I'd probably get it from the dealer. €45 isn't that expensive really.

ardle1 · 28-08-2014 1:46am

I agree, get it from dealer(or scrap yard), that servo hose and valve is probably the only one I wouldn't replace with vacuum hoses from car accessory shop.. If you are also saying you have vacuum leak elsewhere,, well then any car parts shop has reinforced vacuum hoses very cheap, so check size and buy length desired...

flatpack · 03-09-2014 12:56pm

I have replaced all vacuum pipes and all is good but with one little problem: vacuum connection to brake servo is through rubber connector (see image) this part is bit perished and I had to fix it with cable tie as it wouldn’t hold vacuum pipe tight enough, do you know what this part is called?

CJhaughey · 03-09-2014 2:14pm

flatpack wrote: »

I have replaced all vacuum pipes and all is good but with one little problem: vacuum connection to brake servo is through rubber connector (see image) this part is bit perished and I had to fix it with cable tie as it wouldn’t hold vacuum pipe tight enough, do you know what this part is called?

Flanged grommet?

Sudden loss of power (limp mode)

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