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displaying posts 1 to 8 of 8
| Author | Subject: Discovering Vacuum Leak |
 rallyestyle
Seasoned Pro  Location: London Registered: 23 Jul 2003 Posts: 14,991 Status: Offline |
Post #1
Afternoon chaps.Whats the best way to discover a vacuum leak? Can of carb cleaner spraying around the vacuum lines? Any other methods that are best for 6's / Rallyes? Cheers ________________________________________ Just Drive It |
 Posted 8th May 2013 at 15:04
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ryangti6
Seasoned Pro  Location: Pontypool Registered: 01 Sep 2006 Posts: 1,839 Status: Offline |
Post #2
Can of carb cleaner will do the trick if your leak is letting the engine draw in air, the revs should change when you hit the right spot.If its on the pipes other than taking them off and inspecting them, then blocking one end and seeing if you can suck through it I'm not sure how else you could check them. What makes you think you have a vacuum problem? ________________________________________ Ryan |
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Posted 8th May 2013 at 16:13
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rallyestyle
Seasoned Pro Location: London Registered: 23 Jul 2003 Posts: 14,991 Status: Offline |
Post #3
I have a stuttering on idle/hesitation on acceleration issue. Have checked most things but although a visual inspection of the vacuum lines has not revealed anything i thought i best do a test of sorts before getting a diagnostics guy out________________________________________ Just Drive It |
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Posted 9th May 2013 at 08:45
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adam b
Seasoned Pro  Location: The Nam Registered: 24 Jan 2006 Posts: 12,828 Status: Offline |
Post #4
Map or throttle position sensors.________________________________________ Nothing to see here |
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Posted 9th May 2013 at 10:46
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rallyestyle
Seasoned Pro Location: London Registered: 23 Jul 2003 Posts: 14,991 Status: Offline |
Post #5
adam b wrote: Map or throttle position sensors. Pretty sure i have tried both but no joy  Can't remeber if the map i used was a new one or not though  ________________________________________ Just Drive It |
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Posted 9th May 2013 at 13:29
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ryangti6
Seasoned Pro Location: Pontypool Registered: 01 Sep 2006 Posts: 1,839 Status: Offline |
Post #6
The rallye I had for a short while was hesitating on small throttle openings but fine otherwise. It failed the mot idle test so I swapped the lambda which seemed to cure it. ________________________________________ Ryan |
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Posted 9th May 2013 at 13:56
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,769 Status: Offline |
Post #7
It is most likely a lambda problem.  ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone  |
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Posted 9th May 2013 at 14:27
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rallyestyle
Seasoned Pro Location: London Registered: 23 Jul 2003 Posts: 14,991 Status: Offline |
Post #8
stan_306gti6 wrote: It is most likely a lambda problem. It happens with the lambda unplugged though so not so sure I have a spare but i am dreading trying to get the old one off, seized on i reckon, talk about awkward  ________________________________________ Just Drive It |
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Posted 10th May 2013 at 11:07
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