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Model specific boards => Golf mk4 => Topic started by: tallpaulr on 14 May 2011, 21:18

Title: 52 plate Bora 1.8t Sport
Post by: tallpaulr on 14 May 2011, 21:18
Interesting thing has come up with my bora just recently. When starting from cold it sounds really noisey like it's building boost up or something then after a minute or two at idle it sounds like it's dumping off then goes quiet. Then this evening i'm sat at tickover and it does it again but for a few seconds. I fitted a 57i kit a while ago but it never did this up until a few weeks ago. Should I be worried?
Title: Re: 52 plate Bora 1.8t Sport
Post by: richw911 on 14 May 2011, 21:31
AUM/AUQ engine code?

Check this out http://uk-mkivs.net/forums/t/141240.aspx  :wink:
Title: Re: 52 plate Bora 1.8t Sport
Post by: tallpaulr on 14 May 2011, 21:40
Where would I find the engine code, I've not had her long.
Title: Re: 52 plate Bora 1.8t Sport
Post by: richw911 on 14 May 2011, 21:44
Quote from: tallpaulr on 14 May 2011, 21:40
Where would I find the engine code, I've not had her long.

Bottom of this thread http://www.golfgtiforum.co.uk/index.php?topic=89491.0

The secondary air pump repair is an easy job to do ive done one  :smiley:
Title: Re: 52 plate Bora 1.8t Sport
Post by: tallpaulr on 14 May 2011, 21:49
It's AUM, so it looks like this could be the problem.
Title: Re: 52 plate Bora 1.8t Sport
Post by: richw911 on 14 May 2011, 22:13
Quote from: tallpaulr on 14 May 2011, 21:49
It's AUM, so it looks like this could be the problem.

Let us know how you get on  :smiley:
Title: Re: 52 plate Bora 1.8t Sport
Post by: Wayne on 15 May 2011, 00:10
Mine is noisy.

Will have to look at sorting it sometime.
Title: Re: 52 plate Bora 1.8t Sport
Post by: richw911 on 15 May 2011, 10:32
Quote from: Wayne on 15 May 2011, 00:10
Mine is noisy.

Will have to look at sorting it sometime.

Its really easy and well worth doing bud  :smiley:
Title: Re: 52 plate Bora 1.8t Sport
Post by: dubcruiser on 15 May 2011, 17:18
Did mine on my AUQ Golf GTi... Made a difference and made it run better when cold also...
Title: Re: 52 plate Bora 1.8t Sport
Post by: Ant1981 on 15 May 2011, 17:19
What causes the pump to go noisy?
Title: Re: 52 plate Bora 1.8t Sport
Post by: dubcruiser on 15 May 2011, 17:20
Quote from: Ant1981 on 15 May 2011, 17:19
What causes the pump to go noisy?

The rivets that seal it together go soft, then the pump splits allowing the air to escape when the pump runs which is the noise. Sounds like a diesel!! Replace the rivets with nuts and bolts as shown in the thread and resealed and all quiet again!!
Title: Re: 52 plate Bora 1.8t Sport
Post by: Ant1981 on 15 May 2011, 17:38
Mine is noisy, but it doesn't give me a deisel sound. More like a loud whine sound.
Title: Re: 52 plate Bora 1.8t Sport
Post by: dubcruiser on 15 May 2011, 17:44
Quote from: Ant1981 on 15 May 2011, 17:38
Mine is noisy, but it doesn't give me a deisel sound. More like a loud whine sound.

Depends how far gone it is... They vary in noise.
Title: Re: 52 plate Bora 1.8t Sport
Post by: Ant1981 on 15 May 2011, 17:45
Well when I can, I ought to take a look. I need to do my door modules first. At the moment, my car permanantly thinks my door is open.
Title: Re: 52 plate Bora 1.8t Sport
Post by: richw911 on 15 May 2011, 21:13
Quote from: Ant1981 on 15 May 2011, 17:19
What causes the pump to go noisy?

As dubcruiser says  :smiley: Check out the link i posted there are pics in the thread  :smiley:
Title: Re: 52 plate Bora 1.8t Sport
Post by: tallpaulr on 21 May 2011, 17:33
Well just done the pump, 5 out of 6 rivets had led go! Just need to wait until she's cold enough for it to kick in.
Thanks loads for the help!

Tall