Loss of Power - MINI Cooper Forum
Go Back   MINI Cooper Forum > Model Specific MINI Forums > MINI John Cooper Works, GP and World Championship 50 > First Generation Works


First Generation Works MINI John Cooper Works 2003 - 2006

Mini2.com is the premier Mini Cooper Forum on the internet. Registered Users do not see the above ads.
Reply
Similar Threads
Thread Thread Starter Forum Replies Last Post
2008 Cooper D 1.6 power loss Giftedlobster Second Generation Faults & Fixes 5 May 28th, 2014 08:30 PM
Loss of power leads to 4,000+ bill for removing head! tallon Second Generation MINI Cooper S 13 Feb 28th, 2014 10:16 PM
Loss of power Cooper S R56 H17YD_L Second Generation Faults & Fixes 6 Mar 30th, 2013 11:12 AM
Loss of Power........ nickw First Generation MINI Cooper S 1 Feb 27th, 2013 04:45 PM
Loss of power cobraken38 General Discussion 2 Oct 7th, 2012 11:52 PM

 
LinkBack Thread Tools Rate Thread
  #1 (permalink)  
Old Apr 8th, 2014, 02:34 PM
MINI2 Newbie
Offline
 
Join Date: Apr 2014
Posts: 2
Local Time: 12:10 PM
United Kingdom
Loss of Power

Hi all,

Im new to this forum and know very little about the Cooper S.

The Mrshas just bought a JCW 2004 with 80k on the clock and all was fine and pulled hard but now 3 months in its like the car has no boost.

You can hear the supercharger whining but its like there is very little pull.

I have read about bypass valve being an issue could this be hers?

She went to "a specialist" today who advised the CAT could be blocked which i do not believe.

The only other thing we are doing is the usual plugs,leads etc.

Any help would be massively appreciated.
Reply With Quote
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old Apr 8th, 2014, 05:21 PM
heathwebbo's Avatar
MINI2 Regular
Online
 
Join Date: Feb 2014
Location: Burton on Trent
Posts: 216
Local Time: 11:10 AM
United Kingdom Male
if the bypass valve stays open at high revs with your foot down it sometimes can put the engine management light on. One way you can test it is when the car is switched off the bypass valve should be shut, you can then cable tie it shut & take it for a run & see if you still have the problem if you do there is a good chance it could be the cat. Its not really advisable to leave the bypass valve tied shut though as it will drink fuel just use it as a test
Reply With Quote
  #3 (permalink)  
Old Apr 9th, 2014, 08:29 AM
MINI2 Regular
Offline
 
Join Date: Feb 2003
Location: Wokingham, Berkshire
Posts: 125
Local Time: 12:10 PM
United Kingdom
When you say she took it to a 'specialist' and they said the CAT is blocked why wouldn't you believe them?

One of the other causes of power loss on the supercharged 'S' is if the intercooler hoses are split/leaking which I understand is not uncommon on the older/high mileage engines.

If you took it to one of any of the independant specialists as recommended by many users of this forum I would expect them to very quickly diagnose the problem for you.

Spike
Reply With Quote
  #4 (permalink)  
Old Apr 9th, 2014, 09:52 AM
MINI2 Newbie
Offline
 
Join Date: Apr 2014
Posts: 2
Local Time: 12:10 PM
United Kingdom
When i got home last night i turned the car off and unplugged the vacum home off the valve took it down the road and back to life it was. I think this answered my question.
Reply With Quote
Sponsored Links
Advertisement
 
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
2008 Cooper D 1.6 power loss Giftedlobster Second Generation Faults & Fixes 5 May 28th, 2014 08:30 PM
Loss of power leads to 4,000+ bill for removing head! tallon Second Generation MINI Cooper S 13 Feb 28th, 2014 10:16 PM
Loss of power Cooper S R56 H17YD_L Second Generation Faults & Fixes 6 Mar 30th, 2013 11:12 AM
Loss of Power........ nickw First Generation MINI Cooper S 1 Feb 27th, 2013 04:45 PM
Loss of power cobraken38 General Discussion 2 Oct 7th, 2012 11:52 PM

» Recent Threads
Misfiring R55 JCW engine in 6th gear between 2k-3k RPM with throttle wide open
Oct 21st, 2014 10:30 AM
Last post by Mr Muffin
Today 11:00 AM
8 Replies, 722 Views
R56 Aux and Usb
Today 10:41 AM
by Redevo
Last post by Redevo
Today 10:41 AM
0 Replies, 19 Views
Paint warrenty
Today 10:16 AM
by Peter85
Last post by Peter85
Today 10:16 AM
0 Replies, 25 Views
Sprintbooster for MINI Cooper R56
May 14th, 2009 04:29 PM
Last post by Gacek191
Today 07:41 AM
9 Replies, 3,447 Views
I need a tool to flash a JCW map to my 04 MCS ECU
Yesterday 09:42 PM
Last post by djtmalta
Yesterday 10:36 PM
2 Replies, 212 Views
LED Daytime running lights - retro fit
Apr 15th, 2014 06:08 PM
Last post by french01
Yesterday 09:17 PM
6 Replies, 1,415 Views
Electric window stopped working
Jul 6th, 2006 03:48 PM
Last post by regarp
Yesterday 06:22 PM
34 Replies, 65,946 Views
Bonnet touching body
Aug 15th, 2014 03:47 PM
Last post by The Nun
Yesterday 03:58 PM
3 Replies, 458 Views
Facebook page selling mini parts around the uk
Yesterday 11:50 AM
by Alex93x
Last post by Restyle
Yesterday 03:25 PM
2 Replies, 157 Views
New Mini Cooper D - Worth the money?
Yesterday 01:33 PM
Last post by dangoodwin
Yesterday 01:33 PM
0 Replies, 133 Views
Mini Clubman Barn Doors Won't Lock
Oct 22nd, 2014 03:51 AM
Last post by WeeBad
Yesterday 01:03 PM
3 Replies, 435 Views
R56 Footwell module dead
Jul 15th, 2014 04:19 AM
by miniuy
Last post by k3fus
Yesterday 07:16 AM
6 Replies, 1,293 Views
inside lights
Oct 23rd, 2014 11:19 PM
Last post by bigmamabear
Oct 23rd, 2014 11:19 PM
0 Replies, 187 Views
Lights on warning not working
Oct 21st, 2014 11:42 AM
by S2dicky
Last post by S2dicky
Oct 23rd, 2014 09:16 PM
4 Replies, 490 Views
Smoked Headlight Covers GTO276S
Oct 23rd, 2014 08:49 PM
by tmath23
Last post by tmath23
Oct 23rd, 2014 08:49 PM
0 Replies, 187 Views
engine fan on more frequently
Oct 16th, 2014 01:46 PM
Last post by stewarth
Oct 23rd, 2014 07:27 PM
3 Replies, 669 Views
Cooper S judders when idle...
Jul 17th, 2010 04:53 PM
by ben_uk
Last post by Restyle
Oct 23rd, 2014 06:18 PM
6 Replies, 1,130 Views
R56 Aux input volume???????
Oct 20th, 2014 04:00 PM
Last post by Dermottdog
Oct 23rd, 2014 06:00 PM
4 Replies, 581 Views
Start/Stop engine button illuminated when car is locked
Oct 21st, 2014 08:07 PM
Last post by The Nun
Oct 23rd, 2014 05:03 PM
6 Replies, 579 Views
Wheel arch - advice please :)
Oct 22nd, 2014 10:08 PM
Last post by The Nun
Oct 23rd, 2014 05:00 PM
2 Replies, 278 Views
» Premium
» Auto Insurance
Wheel & Tire Center

Powered by vBadvanced CMPS v3.2.1

All times are GMT. The time now is 11:10 AM.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.3.2