DannyParker
Member
Registered: 26th Jun 07
Location: Blackburn, Lancs
User status: Offline
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As it says what the fuck is it as its really startin to annoy me now. 
In the morning when I start my engine it makes a whistling noise really loud out of the part marked with the circle, air coming out of it really fast. Lasts about 3-4 minutes before stopping.
It also happens after my cars parked far a few hours, the longer the engine isn't runnung the the longer it makes the noise. You can leave it about upto 3 hours before it starts when you start the engine
Should this be happening and can i stop it? My car's a 1.4 sport btw. Thanks guys 
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craig_s
Member
Registered: 5th Mar 06
Location: Birmingham Drives: mk4 astra gsi
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there should be a pipe that goes form the secondry air pump to your inlet manifold somewhere.iirc.it helps your engine warm up when its cold.thats why its trying to pump air into the engine when you start it from cold but there is a pipe missing.
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DannyParker
Member
Registered: 26th Jun 07
Location: Blackburn, Lancs
User status: Offline
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I have a protech 4-1 manifold which was already on when I bought the car. Could that mean why its missing?
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craig_s
Member
Registered: 5th Mar 06
Location: Birmingham Drives: mk4 astra gsi
User status: Offline
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.ive never owned a 1.4/1.6 xe corsa so i cant really remember where it should go.i will see if i can get a pic of it for you
[Edited on 06-08-2007 by sri power]
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DannyParker
Member
Registered: 26th Jun 07
Location: Blackburn, Lancs
User status: Offline
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Oh sorry didnt read your reply properly. Got mixed up between exhasut and inlet, thanks for tryin to get me a pic
Could it also affect the temp engine temp when running as well?
[Edited on 06-08-2007 by DannyParker]
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craig_s
Member
Registered: 5th Mar 06
Location: Birmingham Drives: mk4 astra gsi
User status: Offline
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the pipe should go from the secondry air pump to your egr valve.if you have had an after market exhaust manifold fitted you wont be able to fit that pipe.it should be fine to use but iff you want to get rid of that noise you will have to remove the secondry air pump.heres a pic of how it should look with a standard manifold.stollen from someone of here.
[Edited on 06-08-2007 by sri power]
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DannyParker
Member
Registered: 26th Jun 07
Location: Blackburn, Lancs
User status: Offline
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Yeh the noise is really annoying, so I think its time to remove. Thanks!
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DannyParker
Member
Registered: 26th Jun 07
Location: Blackburn, Lancs
User status: Offline
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Does that air pump cool the car down at all btw?
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craig_s
Member
Registered: 5th Mar 06
Location: Birmingham Drives: mk4 astra gsi
User status: Offline
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no it helps it warm up on cold start.iirc
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Robin
Premium Member
Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
User status: Offline
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The bit on the exhaust manifold is not the EGR valve.
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craig_s
Member
Registered: 5th Mar 06
Location: Birmingham Drives: mk4 astra gsi
User status: Offline
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what is it then?its part of the egr system
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Robin
Premium Member
Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
User status: Offline
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It's the SAI valve.
EGR valve is on th inlet manifold.
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craig_s
Member
Registered: 5th Mar 06
Location: Birmingham Drives: mk4 astra gsi
User status: Offline
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its basically the cold start anyway lol
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Vaux Lad
Member
Registered: 15th Dec 04
Location: Stoke-on-Trent
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The SAI increases the temperature of the cat to get it working more quickly.
It doesn't effect engine temperature. And yes it does sound like a dyson  
Just unplug the pump, sorted,lol.
But leave the switchover valve(on the turret) plugged in.
[Edited on 06-08-2007 by Vaux Lad]
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DannyParker
Member
Registered: 26th Jun 07
Location: Blackburn, Lancs
User status: Offline
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Yeah the guy who I bought the car off has de-catted it so need for the air pump. I'll look for the plug to stop it
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Dean_W
Member
Registered: 13th Dec 05
Location: Downham Market, Norfolk
User status: Offline
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Just pull it out. Looks better aswell. Theres 2 bolts, and a plug for the wiring.
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DannyParker
Member
Registered: 26th Jun 07
Location: Blackburn, Lancs
User status: Offline
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I've pulled the plug out now and started my engine after it being off for a few hours since starting work and hey presto its stopped whistling. Now I dont look a dick at 5 o clock every time! Thanks!
Suppose its commmon sense to unplug it if its makin the noise but I didnt know if I needed it.
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