| Author | Message | ||
     Nobuell |
I have an 08 XT and have an intermittent idling issue. Occasionally when stopped the idle will stay at approximately 1900 RPM. Most times it will reduce to normal(about 1000 rpm) but sometimes it will tend to stay at 2000. It does not seem to do it any more or less when hot. The bike does seem to run fine otherwise. I did find that I had a loose battery cable, but tightening did not resolve the problem. I checked the throttle cable adjustment and it is OK. Any suggestions? | ||
| Panhead_dan |
intake manifold leaking? | ||
| Djm |
I had the exact issues. I ended up having my ECM, IAC, and O Rings replaced. Some people report bad intake seals too...Better see your dealership.... | ||
| Greenman44 |
I have the same problem, but on a 06. The throttle will stay at about 2000rpm for a couple seconds when holding the clutch in on decel? What could it be? Also doesn't matter if warm or cold that I have notice. It did sputter 2 times today when I was slow acceleration. I don't know if this is related to the other thing or if I just didn't let it warm up all the way. Thanks for any help. | ||
| Rr_eater |
For most of you, adjust the idle down JUST a smidge, trust me. For the 08s, Im not sure Bruce | ||
| Nobuell |
Djm, Did you get all replaced at one time or did you have go through multiple visits? I had it at the dealership but they could not reproduce the problem. It sounds like i will need to make another visit. Rr eater - I do not think there is an idle adjustment on the 08s. Idle speed is from the IAC. Tim | ||
| Djm |
Unfortunately multiple visits... | ||
| Redwing |
Similar problem with 08 XT (April build) At about 2800 miles on the odo Idle would hang at about 16 to 1800 flutter and bounce and sometimes return to 1050. This would only start to happen after driving 20-30 miles. Took it in and service did a TPS reset, they said it was good to go, BUT, 25 miles from the dealer and same thing, so right back to the dealer and showed them. This time they had the bike for about 10 days and reported doing several diagnostic steps per Buell Service Techs. Insalled a new TPS, picked the bike up Saturday, put about 250 miles on it and so far the erratic hanging idle has not reappeared. | ||
| Djm |
Mine is also an April build for what its worth. Anyone want to buy it?  | ||
| Curly |
try eater's advice before you go in for service. my '07 was doing this and adjusting the idle to exactly 1000 rpm solved the problem. having the idle even a couple hundred rpm too high will cause it to hang. adjust only after engine has been thoroughly warmed up. | ||
| Redwing |
According to 08 Service manual: "There is no adjustment of idle Speed. Idle is controlled by the ECM." | ||
| Natexlh1000 |
The 2008 throttle butterfly closes all the way and there is a bypass idle valve controlled by the brain. I'm thinking that perhaps it could be something simple keeping the real throttle body open just a tiny bit? Have you looked in the throttle body? Perhaps it's sticky or there's something wrong with the throttle cable? | ||
| Nobuell |
Natexlh1000 I did check the throttle cables for adjustment. I also verified that the butterfly is closing completely. The symptoms are the same as Djm and Redwings. I hate to have to bring it to the dealer since it will be out of commission for 2 weeks minimum. That will wrap up the riding season here in the Chicago area. But, it is under warranty. Thanks for the help to all!  | ||
| Jlnance |
According to 08 Service manual: "There is no adjustment of idle Speed. Idle is controlled by the ECM." True for 08s and up. Prior to that, it's adjustable. | ||
| Bartimus |
My '08 is suffering from the same problem, irratic idle, and also surging. I've owned it for 6 months, and it's spent 2 months in the shop! Hopefully they will get it right this time. I try not to pester them since I have other bikes to ride while they try to figure it out. I would think the factory would be more supportive, and help more to get these issues resolved. And if this issue is resolved for the '09's, why don't they just put '09 parts on the '08's that are having problems? | ||
| Djm |
Ditto. Very annoying. | ||
| Etennuly |
Greenman. The idle spec on the '06 is for 1050 rpm. Many of us went through that battle when the bikes first came out. We found that by setting the idle at 1000 solved the problem. | ||
| Nobuell |
Well I just dropped the XT at the shop. I will let you know the outcome Tim | ||
| Dlv |
I'm having the same issue as well. I dropped the bike off for service last Saturday. I haven't hounded them because I am out of town for a while. I'll be curious to hear what they have to say. | ||
| Dlv |
I just got off the phone with the dealer. They were able to observe my issue while the bike was in the shop. After discussions with Buell Tech Services they determined that the bike had a bad ground point(s). He didn't get too specific as to where, which one, etc. He told me that after they addressed the grounds, they hoked it back up and put it on the dyno and everything appears to be ok. He also stated that if this did not work then the next step would have been to replace the induction module. I pick it up on Wednesday so I will keep you posted. | ||
| Buford |
Sounds like the 08's have an IAC motor to control idle bypass? Might be a sticking motor? | ||
| Bartimus |
Well, I just got my bike back from the shop... They had it over 4 weeks this time. They replaced the intake seals, Intake, and finally the ECM. The idle problem is gone, and the bike runs great above 3500 RPMs. I still have surging between idle, and 3500 RPMs which is one of the things I've been bitching about since I bought the bike in April... At least I'm back down to just one issue now. | ||
| Dio |
You seem to have more patience than I would if this was my bike. | ||
| Djm |
After replacing IAC, O rings, and ECM my bike is now getting 28 mpg...its going back yet once again to the shop where they will be working with Buell Tech Services to figure it out. Sigh..... | ||
| Dlv |
Got my bike back this morning. Just took it for a 30 plus mile ride. Didn't throw one check engine light and the bike has never run smoother! It used to have the traditional v-twin vibration below 2500 rpm, now it vibrates much less at all rpm's. There is no noticable excess vibration between 2000 and 2500 rpm. The idle speed seems to be consistent on a cold or hot engine. I am thrilled, it has never run this well. | ||
| Bartimus |
sometimes patience is all you have. I'm learning you need lots of patience when dealing with a new Buell nowadays.  That being said, the bike is going back in the shop after turkey day. I still have the surging, and the transmission shifts hard, and gives me false neutrals between all the gears. Not a good feeling when trying to downshift going into a curve! Also, I am starting to feel more vibrations in the footpegs and handlebars, the bike was very smooth before... The Stealership I've been going to is pretty decent, they've been trying hard to resolve all the issues this bike has. This bike has really ruined my attitude towards XB's in general, I'm really loving my tubers, and how reliable they have been, even more now. So far, Buell has put over $6000 in Warranty work on this bike, I wonder how much they are willing to put into it before they just replace the whole bike? | ||
| Nobuell |
Well it has been two weeks in the shop this time. The word is they are awaiting info from Buell. The bike has been in the shop for this issue for over 4 weeks. I have only owned the bike for 4 months. I am starting to get impatient. I do not want to badger them but it makes me wonder! | ||
| Bartimus |
Nobuell, It will take about a month the first time it's in the shop. Buell does not have a very good parts network in place it seems. Every time my bike goes into the shop, it seems a month is the minimum time required to get all the parts in and complete the repairs. I'm just fortunate that I have older, better running Buells to ride while I wait for my Lemon, er, I mean Uly, to get fixed... | ||
| Whitj |
Bartimus, do you have the blue, orange or black Uly? The blue has idle issues, the orange is slow.. No issues w/ the black model. Did you see that post about a guy w/ all kinds issues and Buell send him a new bike? I know customer service for Buell is great. You should give them a ring. Court is a great help as well. These people really go the extra mile. Don't toss in the towel on your XB just yet. I have over 18k on mine and have never had an issue other than a blown tire. My next toy will be another XB w/ out question. Let me know if i can help | ||
| Buelldyno_guy |
A word of caution here. There have been several of us with idle and off idle issues with later models up to 08. In 08 to help solve some of these we got DDFI-3 with an IAC to control idle speed. It does that by using a ECM/IAC controlled intake leak, or in the non FI world a computer controlled idle air screw. So what I am getting at that we need to remember is that this issue on an 08/09 is different than any cause we may have had on our earlier bikes. Now having said that, our personal experience with Buell Customer Service or Tech Support would always be something to share. ... Terry |
