DV Dumping on idle

[Dodson]

When my car is just iddling i can hear my standard DV dumping on idle (i think) its a kind of whooshing noise.

Is that normal?

The DV seems to be a lot louder than normal aswell, car has done 46K

 

[stoneyfordNI]

have u tested the DV

 

[cordobabrendy]

it couldnt be dumping when idling as the turbo isnt spinning (or at least, not spinning enough) to create positive pressure as the engine is mostly doing the sucking at idle.
have you removed and inspected the standard valve to see if its leaking or damaged?

 

[Dodson]

I wouldnt no if it was to tell you the truth ^^^

I thought that about the idling bit and the Turbo not spinning?

What else might it be?

 

[cordobabrendy]

leak? it could also just be you getting paranoid and subconsciously wanting to buy a forge alloy fmcl007p available from most reputable seat tuners!!

 

[Dodson]

Ahem...erm....maybe yes...but....erm.....yeh i do want one of them!!

But do people think it maybe a problem,as the car is still under warrenty i may aswell get a free DV and then it will be ok when i put it back on when car goes...

 

[m0rk]

No load, no boost

Simple as that. So the DV can't dump the boost that's not there

 

[RobDon]

If it's the standard plastic DV it will be split, either replace it with another one (£15) or upgrade to a Forge 007P, Eliminator or Bailey DV30 (£80).

 

[CupraR-Rog]

Don't bother getting a replacement standard one - why re-fit something that is known to fail?

 

[RobDon]

Some folks don't want to spent £80+ on a DV, they just spend £15 when they need to - each to their own.

 

[Dodson]

So would it be covered under warrenty?

Also will it be affecting the performance in any way?

 

[cordobabrendy]

if its leaking (on boost) yea you will be down on power.
warranty, yea probably. how many miles have you done? they could say its fine though.

 

[Dodson]

46k...It was in the other day for some work and they never mentioned it like!

 

[RobDon]

Might not be a warranty item plus it's a very common issue, yes you'll lose power as boost pressure will be leaking through the split rubber diaphragm. £15 and 5 mins will fix it if not under warranty. 46k is actually very good for the plastic Bosch DV to last, they can go alot sooner than that.

 

[Ruddmeister]

Still doesn;t explain this boost leak on tickover I think a dealer should take a look at the car.

 

[m0rk]

you can't have a boost leak at tickover though..

no load, no boost

secondary air pump leak, air con leaking, that sorta thing.

 

[Dodson]

Well i may aswell book it in to get looked at,im getting a CD player fitted there next week sometime so ill ask them to look then. Thanks guys

 

[RobDon]

You'll have a VACUUM leak at tickover, not a boost leak.