'07 Idle Issues
6th Gear
Joined: Jun 2015
Posts: 14
Likes: 1
From: Indiana
I am having low idle and stall issues on my 2007 street glide.
My breather tubes do not look the same as the ones referenced in several pictures. I believe this because i am running the stock air box. This leads me to think the issue is not related to "gunk" or build up on the IAC.
After reading every post is sounds like replacing the TPS should be one of my first attempts to resolve the issue.
Someone please correct me if I'm way our in left field. This is my first Harley and I've had it less than a month.
My breather tubes do not look the same as the ones referenced in several pictures. I believe this because i am running the stock air box. This leads me to think the issue is not related to "gunk" or build up on the IAC.
After reading every post is sounds like replacing the TPS should be one of my first attempts to resolve the issue.
Someone please correct me if I'm way our in left field. This is my first Harley and I've had it less than a month.
Seasoned HDF Member
Joined: Apr 2008
Posts: 10,135
Likes: 4,774
From: Sandpoint, Idaho
You should actually clean the IAC first, after all it is FREE and that is most likely your problem. If that does not fix it move on from there.
Just to let you know, when I had the same problem as you there was no obvious buildup but after cleaning the problem disappeared. So "obvious" buildup is not needed to cause the problems you are having.
Just to let you know, when I had the same problem as you there was no obvious buildup but after cleaning the problem disappeared. So "obvious" buildup is not needed to cause the problems you are having.
Last edited by perki48; Jul 13, 2015 at 10:00 AM. Reason: add info
Tourer
Joined: Jul 2007
Posts: 435
Likes: 0
From: Central Arizona
This issue was resolved for me at the dealer. **UGH** At 94K miles, the first time my bike had returned to the dealer since I bought it new!
Anyhow, I replaced the TPS and IAC (high idle issue) along with the Neutral Safety Switch (unrelated issue) and still had the scary high idle.
So the dealer service tech informed me that the only thing I forgot to do was to ADJUST the stepper motor. OMG did I NOT notice that in the installation instructions?!?
Well, he said he used a millivolt electrical tester to get the correct setting (I forgot the range) so - 2 hours of shop time later - she is purring like a kitten again.
I just rolled the odometer last month (100K miles YIPPEE!) and the old girl is still running like new. BTW this was the first and only issue I have ever had with my bike, besides burning through back tires and front brake pads like there's no tomorrow...
Anyhow, I replaced the TPS and IAC (high idle issue) along with the Neutral Safety Switch (unrelated issue) and still had the scary high idle.
So the dealer service tech informed me that the only thing I forgot to do was to ADJUST the stepper motor. OMG did I NOT notice that in the installation instructions?!?
Well, he said he used a millivolt electrical tester to get the correct setting (I forgot the range) so - 2 hours of shop time later - she is purring like a kitten again.
I just rolled the odometer last month (100K miles YIPPEE!) and the old girl is still running like new. BTW this was the first and only issue I have ever had with my bike, besides burning through back tires and front brake pads like there's no tomorrow...
6th Gear
Joined: Jun 2015
Posts: 14
Likes: 1
From: Indiana
I guess it is worth a try....only cost is bottle of cleaner. Probably even have one laying around the garage.
Based on posts gentle spray or q-tip is best cleaning method correct??
Port is located just outside the butterfly at the 12oclock position??
Based on posts gentle spray or q-tip is best cleaning method correct??
Port is located just outside the butterfly at the 12oclock position??
Road Master
Joined: Oct 2006
Posts: 832
Likes: 6
From: Vermont
This issue was resolved for me at the dealer. **UGH** At 94K miles, the first time my bike had returned to the dealer since I bought it new!
Anyhow, I replaced the TPS and IAC (high idle issue) along with the Neutral Safety Switch (unrelated issue) and still had the scary high idle.
So the dealer service tech informed me that the only thing I forgot to do was to ADJUST the stepper motor. OMG did I NOT notice that in the installation instructions?!?
Well, he said he used a millivolt electrical tester to get the correct setting (I forgot the range) so - 2 hours of shop time later - she is purring like a kitten again.
I just rolled the odometer last month (100K miles YIPPEE!) and the old girl is still running like new. BTW this was the first and only issue I have ever had with my bike, besides burning through back tires and front brake pads like there's no tomorrow...
Anyhow, I replaced the TPS and IAC (high idle issue) along with the Neutral Safety Switch (unrelated issue) and still had the scary high idle.
So the dealer service tech informed me that the only thing I forgot to do was to ADJUST the stepper motor. OMG did I NOT notice that in the installation instructions?!?
Well, he said he used a millivolt electrical tester to get the correct setting (I forgot the range) so - 2 hours of shop time later - she is purring like a kitten again.
I just rolled the odometer last month (100K miles YIPPEE!) and the old girl is still running like new. BTW this was the first and only issue I have ever had with my bike, besides burning through back tires and front brake pads like there's no tomorrow...
Stepper Motor voltage adjustment worked for high/low and stalling problem for me, too. The spec is 0.57V. Bulletin TT410 has some good information on '07 idle issues. I would attach a copy of it to this post but I'm not sure if I can and I don't know how to attach a PDF document.
I "Googled" tt410 and it was there as the first listing on the search.
Last edited by Woodchuck; Jul 13, 2015 at 12:16 PM. Reason: Found the bulletin with Google
Advanced
Joined: Apr 2016
Posts: 63
Likes: 8
From: West Los Angeles
2007 FLHX - Random Low Idle/Stall
Thank you for addressing this issue thoroughly. I am posting photos of my Throttle Position Sensor (TPS) replacement and am including the tear-down of the faulty TPS unit to potentially identify the cause of the failure. Also, I tested the ohms along the electrical ribbon (image TPS 6) and was able to determine that the ribbon still functioned. I hope this helps with any open questions. Thanks again!
Last edited by bellmnbell; Apr 13, 2016 at 07:52 PM.
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Novice
Joined: Sep 2012
Posts: 19
Likes: 0
From: Costa Rica
I'm starting a new thread on this topic because I think it deserves one. Over the past few months I've emailed probably 20-30 PDF copies of HD's TT410 that addresses idle issues on '07 bikes, and new problems and requests pop up nearly every day. This tech tip bulletin covers low-idle problems, but I'm having a sporadic high idle issue.
In my case the bike will occasionally--maybe once every couple of weeks in winter, less-often in summer--start-up idling at around 2000 rpms. This started late last summer. No amount of throttle blipping will make it idle down to its usual 950 rpms, and if I don't stop the bike it will stay idling at that level until I turn it off. Usually I can turn it off at the handlebar switch, then off at the ignition switch, and when restarted will usually idle normally for the rest of the day and probably for quite a few days thereafter. For me it is more of an irritation than a real problem.
OTOH I have had a very few cases (maybe 3-4 over the last year) of poor idle that causes it to idle low and roughly, usually for only a short time that clears up on its own. It's never died during one of these rare spells, though. A tech at the local HD shop that I respect has an '07 and said he fixed his problems by replacing the IAC valve on the throttle body. I tried spraying some carb cleaner and lubricant into the IAC orifice just inside the throttle body and that seemed to help for a short time. A second application didn't seem to help, so I'm not sure my particular problem involves a sticky IAC valve. If I thought it was I'd swap it out in a second. If this was the culprit I would think blipping the throttle and/or just riding the bike would shake it loose, but it doesn't.
Someone on one of these threads mentioned that a download existed from HD that helped with these idling problems, but I haven't been able to verify this. Dawg? Hogdoc? Have you or any of our other resident techs ever heard of this?
Anyway, maybe by starting a specific thread on this issue we'll make some headway in finding out how to fix these problems, as it is affecting many '07 owners.
Anyone commenting on this topic please mention whether it is low- or high-idle, what you've tried to fix it, and if anything has worked.
In my case the bike will occasionally--maybe once every couple of weeks in winter, less-often in summer--start-up idling at around 2000 rpms. This started late last summer. No amount of throttle blipping will make it idle down to its usual 950 rpms, and if I don't stop the bike it will stay idling at that level until I turn it off. Usually I can turn it off at the handlebar switch, then off at the ignition switch, and when restarted will usually idle normally for the rest of the day and probably for quite a few days thereafter. For me it is more of an irritation than a real problem.
OTOH I have had a very few cases (maybe 3-4 over the last year) of poor idle that causes it to idle low and roughly, usually for only a short time that clears up on its own. It's never died during one of these rare spells, though. A tech at the local HD shop that I respect has an '07 and said he fixed his problems by replacing the IAC valve on the throttle body. I tried spraying some carb cleaner and lubricant into the IAC orifice just inside the throttle body and that seemed to help for a short time. A second application didn't seem to help, so I'm not sure my particular problem involves a sticky IAC valve. If I thought it was I'd swap it out in a second. If this was the culprit I would think blipping the throttle and/or just riding the bike would shake it loose, but it doesn't.
Someone on one of these threads mentioned that a download existed from HD that helped with these idling problems, but I haven't been able to verify this. Dawg? Hogdoc? Have you or any of our other resident techs ever heard of this?
Anyway, maybe by starting a specific thread on this issue we'll make some headway in finding out how to fix these problems, as it is affecting many '07 owners.
Anyone commenting on this topic please mention whether it is low- or high-idle, what you've tried to fix it, and if anything has worked.