View Full Version : Is my fuel pump going out?

09-21-2013, 02:57 PM
Went to start my '03 XB9S last night. Would not idle unless I held throttle open to tach about 2k. Also loud , high pitch sound from what sounded like under air box. Riding at speed on the way home no problem. When I got home idled with no problem . No noise from air box. Shut off and restarted and idled no problem.
If this is fuel pump going south , how much trouble is it to replace?

09-21-2013, 04:40 PM
Any ideas ?

09-21-2013, 07:13 PM
Could be. Sounds like what happened to mine. Mine died as I turned in to my neighborhood, then fired up but wouldn't idle, I had to give it gas. Then in the driveway it'd idle. I replaced the pump and while doing so noticed the ground wire on the pump was loose. I think this was my real issue, but I went and replaced the pump and filter while it was all apart, was only a little over $100.

FWIW the old pump was crazy loud, like a whining noise. The new pump(ford mustang pump) is pretty quiet. Almost have to listen for it when you turn the key to hear it priming.

09-21-2013, 08:12 PM
Not done befor. How much trouble is it ?

09-21-2013, 09:34 PM
If you're handy not too bad. A few parts are a royal PITA though. Here's a thread I made when mine went out:


09-22-2013, 09:48 PM
Off to auto zone for fuel pump then in to it.

09-23-2013, 12:37 PM
Got it done, thanks for the info . Saved a lot of time. Didn't have to pull swing arm, old one out- new one in and back on the road.

09-23-2013, 01:25 PM
Wow that easy. Or does it just sound that easy?

09-23-2013, 01:49 PM
awesome man. sounds like you had an easier time than I did lol. Granted I didn't have a write up to follow :). Glad it helped you out.

09-23-2013, 01:51 PM
and FWIW I've probably put 1000-2000 miles on my bike since I did the pump and it still runs great. Starts and idles better than it used too. I believe my issue was really the loose ground. Was your ground tight?

09-23-2013, 04:38 PM
A little loose. Don't know if lose enough to cause issue or not. But did put lock washer on it. Took about 2 hrs start to finish. Had to work screen a little to get back in , having the write up really saved the time there. Did not have to figure it out on my own.