juddering/rough idle - MINI Cooper Forum

Second Generation MINI Cooper MINI Cooper Late 2006 - Present

User Tag List

 
LinkBack Thread Tools Rate Thread
post #1 of 4 (permalink) Old Feb 9th, 2013, 06:56 PM Thread Starter
MINI2 Regular
 
Join Date: Dec 2012
Local Time: 07:54 AM
Posts: 62
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)

United Kingdom
 
juddering/rough idle

Hi guys,

Got a 57 plate 'justa' cooper with the n12.

It's got a rough idle (doesn't stall though) it hovers between 650 - 850 rpm and at around 1800 RPM in 4th when you accelerate the car judders, in other gears you don't seem to notice this, i assume it's because it's more strain on the engine.

Any ideas guys? Thinking of changing the spark plugs & HT leads, are the coil packs ok on these cars? Car only has 37k on it!
woosey is offline  
Sponsored Links
Advertisement
 
post #2 of 4 (permalink) Old Feb 11th, 2013, 07:24 PM
Has met Quack Quack Jack
MINI2 Master
 
ALD0's Avatar
 
Join Date: Jun 2003
Location: Chester
Local Time: 08:54 AM
Posts: 9,654
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)

United Kingdom Male View ALD0's Hyper Blue & Black 1st Gen MINI Cooper S Profile View ALD0's Classified Ads
 
Send a message via MSN to ALD0 Send a message via Skype™ to ALD0
It could be any that you mention.

Unfortunately these engines suffer with a build up of coking too. It may need a de coke.

Also try a high pressure fuel pump too.

Mine had both of the above to cure similar problems.
ALD0 is offline  
post #3 of 4 (permalink) Old Feb 11th, 2013, 09:19 PM Thread Starter
MINI2 Regular
 
Join Date: Dec 2012
Local Time: 07:54 AM
Posts: 62
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)

United Kingdom
 
Quote:
Originally Posted by ALD0 View Post
It could be any that you mention.

Unfortunately these engines suffer with a build up of coking too. It may need a de coke.

Also try a high pressure fuel pump too.

Mine had both of the above to cure similar problems.
being a 'justa' cooper i don't have the coking issue, or a high pressure fuel pump

Checking the part numbers of the ignition coils, they match that of my old E60, which had all 6 replaced under warranty due to issues with them failing early (via a campaign) so i'll throw that in on thursday (it's off to mini under warranty)
woosey is offline  
post #4 of 4 (permalink) Old Feb 15th, 2013, 05:11 PM Thread Starter
MINI2 Regular
 
Join Date: Dec 2012
Local Time: 07:54 AM
Posts: 62
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)

United Kingdom
 
sure enough 4 new coil packs from mini under warranty and the problem has gone
woosey is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the MINI Cooper Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Rate This Thread
Rate This Thread:



Posting Rules  
You may post new threads
You may 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

 
For the best viewing experience please update your browser to Google Chrome