All Things Mk5 > How to Guides / Troubleshooting

Intake manifold flap issues - TDi170

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dns2491:
Does anybody know for definite, which part is the manifold runner?

Tps are telling me its the flaps inside the inlet, just before the head ports. Which is what I have changed the actuator for.

But upon doing some research online, people are referring to the throttle style valve before the EGR valve. Which is also referred to as a anti shudder valve. This would make sense as to why the vacuum controlled flaps appear to not have any issues.

Any advice appreciated as always!

Matto:
As far as I'm aware, all the anti shudder valve does is block off the air flow into the inlet manifold once the ignition is turned off. If you turn it off you will hear a high pitched electrical whistle/buzz coming from it. Then after a few seconds delay it will click again. This is to stop overrun and the possibility of a runaway engine.

dns2491:
Just for future reference, I have replaced the anti shudder valve, and the problem has gone!

Thanks for the help!

marko:
 :happy2: :happy2:

Jay69:
dns2491 hoping you or others can help with a similar issue ...my intake manifold is leaking ..garage said only way to fix this was to replaces the whole manifold which is £££££. They said that its leaking from where the actuator goes into the manifold which has worn away. Power is rubbish from lower down the revs but builds up ok from then on.  From your post it looks like you have replaced some parts in particular the one way inline valve going to the actuator perhaps could fix my issue ?

any advice much appreciated cos this is severely annoying now  :/

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