Boost leak??

chris128

Active Member
May 2, 2010
169
0
N.E Lincolnshire
I get the same whistle/fluttering sound on my Cupra R since having it remapped (revo stage 1) and I was told by the revo dealer its perfectly normal
 
Feb 1, 2010
987
0
Leicester
Noises and clutches !!! Grrrrrr

Took the car into the garage a few weeks ago and they found nothing wrong


Now for the past week the car seems a bit jerky when its idling??


I was out today and as I put my foot down, it started making a rattling sound and I lost power. I tried to do the same after the next roundabout and I lost power and then engine management light flashed on and off


Managed to drive the car back home ok, but when I put my foot down it makes that horrible rattling sound


This happens even if I gradually put my foot down as well



Any ideas??? Going to get it looked at tomorrow if possible

Well i WAS booked for a diagnostics on friday.

i say was because my clutch started slipping on monday!!!!FFS

So they cant put it on a duno to diagnose the whistling noise till the clutch in done.
The dyno would probably kill what life the clutch has left!!!!
 

betty_swollox

Richie
Feb 15, 2011
5,497
7
Washington
I get the same whistle/fluttering sound on my Cupra R since having it remapped (revo stage 1) and I was told by the revo dealer its perfectly normal

It's making me lose power now tho and makes a horrible rattling sound.


Did yours flutter before it was remapped? Mine never used to do it and I haven't done any mods to it
 

betty_swollox

Richie
Feb 15, 2011
5,497
7
Washington
Well i WAS booked for a diagnostics on friday.

i say was because my clutch started slipping on monday!!!!FFS

So they cant put it on a duno to diagnose the whistling noise till the clutch in done.
The dyno would probably kill what life the clutch has left!!!!

What a ****ing shitter mate :(:(:(


I'll let u know if I can get the car sorted tomorrow
 

chris128

Active Member
May 2, 2010
169
0
N.E Lincolnshire
It's making me lose power now tho and makes a horrible rattling sound.


Did yours flutter before it was remapped? Mine never used to do it and I haven't done any mods to it

Hmm that sounds like a different problem then (at least I hope it is!). No mine definitely started doing it the day I got it remapped. If you hadn't done anything at all to it and it started doing that though then I'd say that was a problem anyway personally cos nothing should change if you've not done anything to it.
 

betty_swollox

Richie
Feb 15, 2011
5,497
7
Washington
Right, put the car in the garage this morning....and they reckon the coil packs need replacing....would that cause a loss of power and rattle while under load??:confused:



Getting coilpacks changed tomorrow. Will have to see what happens!
 
Jan 1, 2006
764
1
Sheffield
Right, put the car in the garage this morning....and they reckon the coil packs need replacing....would that cause a loss of power and rattle while under load??:confused:



Getting coilpacks changed tomorrow. Will have to see what happens!

Not sure about a rattle, but failing coilpacks make the car run like crap generally - not just under load - although high load will highlight weaknesses first. They do make the car sound clunky, so perhaps this is your rattle?

Is your car an 07? If so, did they have the coilpack recall? I know my didn't and that's an 08. From what I'm told 08 onward cars don't see too many coilpack issues.
 

betty_swollox

Richie
Feb 15, 2011
5,497
7
Washington
Not sure about a rattle, but failing coilpacks make the car run like crap generally - not just under load - although high load will highlight weaknesses first. They do make the car sound clunky, so perhaps this is your rattle?

Is your car an 07? If so, did they have the coilpack recall? I know my didn't and that's an 08. From what I'm told 08 onward cars don't see too many coilpack issues.

It was running fine until last night mate. A bit juddery at idle, but performed fine. Now it runs like a heap of shite and it has the horrible rattle

I asked about the coil pack recall and they said my car wasn't one of them........:rolleyes:

it's a 57 btw.

Do you know what the rattle sounds like, it's kinda like ball bearings rolling around in a tin. Sounds really metallic. I'll see how it goes after the coil packs are changed. I am gna tell them to get it changed, take it for a test drive and if the noise is there, then obviously there is something else wrong


Is the engine management light flashing on and off something to do with the exhaust??
 
Jan 1, 2006
764
1
Sheffield
It was running fine until last night mate. A bit juddery at idle, but performed fine. Now it runs like a heap of shite and it has the horrible rattle

I asked about the coil pack recall and they said my car wasn't one of them........:rolleyes:

it's a 57 btw.

Do you know what the rattle sounds like, it's kinda like ball bearings rolling around in a tin. Sounds really metallic. I'll see how it goes after the coil packs are changed. I am gna tell them to get it changed, take it for a test drive and if the noise is there, then obviously there is something else wrong


Is the engine management light flashing on and off something to do with the exhaust??

If your EML is on and off I'd suggest it's 99% certain its coilpacks from the other symptoms you've described. Yes re: the sounds. I had coilpack failures on my mk1 and it sounded really unwell.

I always thought the EML was as a result of a misfire when coilpacks had failed. It should tell you which cylinder is having the problem.
 

betty_swollox

Richie
Feb 15, 2011
5,497
7
Washington
If your EML is on and off I'd suggest it's 99% certain its coilpacks from the other symptoms you've described. Yes re: the sounds. I had coilpack failures on my mk1 and it sounded really unwell.

I always thought the EML was as a result of a misfire when coilpacks had failed. It should tell you which cylinder is having the problem.

Right, that's put my mind at rest a bit. Just gotta wait and see what the crack is!!

Mate I have no vagcom so I haven't been able to scan it :(


EDIT: cheers for the help tho
 
Last edited:

kilner

Active Member
May 8, 2011
326
0
as for the flutter its just the turbo and the boost that backs up into turbine blades and causes it to make the noise

if you put it in 3rd or 4th and put your foot down at 1500rpm and then lift off just as you hit 3k it will make the noise


wen running high high boost this backing up of pressure can damage the turbo and this is the resson for the blow off valves to relese the pressure so it dosent back into the turbine
 

betty_swollox

Richie
Feb 15, 2011
5,497
7
Washington
bollocks

Still not 100% right


The rattle was there when I picked the car up but it has now gone

Now when I drive I still get the engine management light sometimes. Also, most of the time when I boot it, it gets to a certain stage and the revs stop rising.


Ideas lads? Lol!
 

kilner

Active Member
May 8, 2011
326
0
just a toss up

you may hav a faulty maf sensor

if the flow is detected difrent to wat the map sensor sees it can throw the boost leak fault


i would try cleaning the maf with brake cleaner i hav seen a car gain 50bhp just from cleaning the maf
 

betty_swollox

Richie
Feb 15, 2011
5,497
7
Washington
just a toss up

you may hav a faulty maf sensor

if the flow is detected difrent to wat the map sensor sees it can throw the boost leak fault


i would try cleaning the maf with brake cleaner i hav seen a car gain 50bhp just from cleaning the maf

Mate I wouldn't know where to start lol!!!!
 
Jan 1, 2006
764
1
Sheffield
Still not 100% right


The rattle was there when I picked the car up but it has now gone

Now when I drive I still get the engine management light sometimes. Also, most of the time when I boot it, it gets to a certain stage and the revs stop rising.


Ideas lads? Lol!

Apologies if you've already mentioned, but when were your plugs changed last?
 

betty_swollox

Richie
Feb 15, 2011
5,497
7
Washington
Service interval is 40k miles For plugs , which I think is way over the top tbh
10-20 k max for plugs IMHO

Right, they should have been changed then....but after all this **** I don't believe that they actually have


been on the phone to them this morning, they said bring it in this afternoon for a diagnostic check....so does that mean they didn't do one yesterday?:think:

The engine management light is permanently on now. Car is still loosing power as well. Well f**ked off now.
 

robdf2

Yellow is the best
Feb 21, 2006
3,605
2
location , location
Right, they should have been changed then....but after all this **** I don't believe that they actually have


been on the phone to them this morning, they said bring it in this afternoon for a diagnostic check....so does that mean they didn't do one yesterday?:think:

The engine management light is permanently on now. Car is still loosing power as well. Well f**ked off now.

funny you say that
my car went in for its 40k service with a missfire , i knew it was plugs again causing it (my went through plugs at about every 8k miles because they set the timing wrong on my car for 3 1/2 years grrrrrrr , but thats another story) so i thought , no problem new plugs will be fitted on the service.
Got the car back drove away and missfired , checked the service sheet no mention of plugs?
went back to the dealer and this is what they told me " SEAT service schedule for plugs is 60k miles " , i said i dont think so , they were adament , so i said phone up SEAT and i will wait here while you do it , low and behold 20 seconds into the conversation 40k is mentioned.
my plugs were fitted free of charge , but thats not the point the so called "experts" knew absolutley nothing , and i was paying £125 + vat an hour for their labour.
 
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