R50/R53 :: Hatch Talk (2002-2006) Cooper (R50) and Cooper S (R53) hatchback discussion.

R50/53 Mini Cooper R50 Fuel Pump issue

Thread Tools
 
Search this Thread
 
Old May 11, 2021 | 11:20 AM
  #1  
mirek604's Avatar
mirek604
Thread Starter
|
Neutral
Joined: May 2021
Posts: 2
Likes: 4
From: Vancouver BC
Mini Cooper R50 Fuel Pump issue

Hey all! I've got an issue with my R50 and was hoping perhaps someone might have some knowledge that could help !

My mini died while my wife was driving it a few weeks ago, I drove over there and tried to start it, it cranked nicely, but wouldn't start. I immediately thought the pump was going, and eventually it just started right up. It drove for a few weeks then again while my wife was driving it it died, this time would not start again. I thought great, pump finally died should replace it. Before I ordered a new pump I thought I'd do some troubleshooting.

- I pulled the rear seats, and could not hear the pump prime, good news, probably just a bad pump.
- I measured the voltage on Pin 2 and 5 at the pump, and got no voltage.
- I checked the fuse, it was good, measured voltage and there is 12v at the fuse.
- I swapped the fuel pump relay with the one above it incase it was a bad relay, no go.
- Measured voltage at the relay and get 12v. I can also hear the relay clicking.

My immediate thought was maybe the inertia switch tripped, but as it's a 2004, the inertia switch isn't under the hood, and feel this may just be a long shot.

So I'm not getting power from the relay to the pump for some reason. Does anyone have any ideas I can try?

Many thanks!
 
Reply
Old May 17, 2021 | 11:17 AM
  #2  
Thinker2112's Avatar
Thinker2112
5th Gear
20 Year Member
Liked
Loved
Community Favorite
Joined: Jun 2005
Posts: 824
Likes: 87
Just a guess but there may be a break in the line between the relay and the pump since you have power at the relay but none at that pump. The issue, I am guessing, is somewhere in between the two. Just a guess though.
 
Reply
Old May 17, 2021 | 11:39 AM
  #3  
mirek604's Avatar
mirek604
Thread Starter
|
Neutral
Joined: May 2021
Posts: 2
Likes: 4
From: Vancouver BC
Wanted to give everyone an update on how this was fixed and what the issue was incase someone ever has the same issue. I had a bad ground under the hood, drivers side. Here's a picture. Tightened it, and everythings fixed!

 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
shrevemini
General MINI Talk
2
Jul 25, 2020 11:08 AM
Lex2008
R56 :: Hatch Talk (2007+)
3
Feb 20, 2019 07:03 AM
idickers
Stock Problems/Issues
0
Feb 6, 2016 08:54 AM
candemresurrection
Stock Problems/Issues
7
Mar 31, 2015 08:58 PM
03coopie
R50/R53 :: Hatch Talk (2002-2006)
19
May 28, 2013 08:56 AM




All times are GMT -7. The time now is 11:43 PM.