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'07 Idle Issues

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Old Jun 10, 2012 | 06:25 PM
  #241  
JRandall's Avatar
JRandall
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From: North Carolina
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Have no idea about your idle problems. I have the low idle problem (07 EG) from time to time, so far just dealing with it.

But as far as the cruise problem, mine started doing the same thing on a trip home from the OBX. Guy riding behind me ask why I was bumping the brake so much, which was the problem. Every time I'd cross a bump the front brake switch would click and no more cruise. I took the lever off and barely bumped the part that makes switch (it's aluminum VERY easy to bend too much) and my problem was fixed. I'd guess you have the same problem with one of the two brake light switches.
 
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Old Jun 10, 2012 | 06:45 PM
  #242  
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bigdoghd
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Hey Jrandall ....trouble is mine won't engage. Yes, the green light is light, but when you let off the throttle the cruise is not engaged and the light goes off.

Thanks though for your input
 
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Old Jun 10, 2012 | 08:33 PM
  #243  
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Originally Posted by bigdoghd
I have a 2007 Ultra Classic with a 103" motor we built at my shop. I also have a Zipper fuel managements system which removes the HD system.

I haven't ridden the bike much but last year it developed the high idle issue. Wife and I were out for a ride came to a stop and the bike was at 2000 rpm and up.

What we did:
Relearn procedure on IAC
Cleaned IAC motor
Replaced Iac motors (Issue was gone last year but very very limited riding)

This weekends ride, put about 250 miles on the bike mainly highway and about 200 prior around the house. After the highway ride we stopped for a snack. When leaving I fired the bike up and got about 1 block and the high idle was back.

Now keep in mined this is a new IAC. The factory re-flash has no bearing I believe since it's a Zippers system. So now I have a new IAC a do not run the factory tuner and were back to square one.

I did spray the heck out of the IAC and after a short run it was working but still may act up every few stops. I drove all the way home with at 70 mph for 3.5 hrs and the idle issue was not there when stopping 3-4 times on the way home? I sure though it will come back.
Cleaning and replacing the IAC never helped my problem at all. When I had the high-idle issue it would only happen right after starting, never at any other time that I can recall. This is one of those things that may require replacing things in an attempt to hit on the right one. For me it was the TPS, as after changing it I haven't had one misfiring or high-idle incident in a year (Voila!).

For you, there's one more question mark since you have the T'Max instead of the stock ECM, although I doubt if that is the cause since this is a common malady on '07's with stock ECM's, and I've never heard of an ECM causing idle problems. I would call Zippers and ask them for ideas, as there may be something unique to their unit they know that we don't.

You could replace the TPS since it is cheap and easy to change out, as that would be my leading suspect.

PS to top the trip off the cruise went out too? Light would engage but cruise control would drop right off and green light would go out....no cruise
The service manual has an elaborate diagnostic procedure outlined for the cruise control, and the results can be seen on the radio display. If your brake light illuminates the cruise will go off, as will an interruption in the switch circuit.
 
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Old Jun 10, 2012 | 08:36 PM
  #244  
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Originally Posted by bigdoghd
Hey Jrandall ....trouble is mine won't engage. Yes, the green light is light, but when you let off the throttle the cruise is not engaged and the light goes off.
Check the cable that attaches to the throttle. Mine would show that it was enabled--green light on, etc.--but wouldn't engage. After spending 30 min. with the diagnostic procedure I found that I had knocked the cable loose while working on my air horns.
 
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Old Jun 11, 2012 | 08:57 AM
  #245  
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bigdoghd
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From: Brookfield,Il.
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Originally Posted by iclick
Check the cable that attaches to the throttle. Mine would show that it was enabled--green light on, etc.--but wouldn't engage. After spending 30 min. with the diagnostic procedure I found that I had knocked the cable loose while working on my air horns.
Yes that is very very possible. Not saying my buddy did it on purpose but the bike was hot and he had his fingers in that area.....but who knows. As far as throwing parts at it, ya that's not my style. We have a very high end auto facility and just closed our HD shop after 10 plus years. The post was modre so to see if there was issue that was already solved. TPS could be a possiblity. The only issue is after the IAC it was good for 700 miles and before it would act up in the first 5 miles. Come to a stop and blame the idle was at 2000-3000 rpm.

Thank U I do appreciate your input.
 
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Old Jun 11, 2012 | 09:37 AM
  #246  
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I believe I have my fix......since we have already replaced the IAC and the issue went away for a short period of time. The tps is working fine. After cleaning the IAC the issue got better and was really almost gone during the 275 mile trip back. I know I'm getting some oil threw the breather causing it to gum up the IAC after the oil is baked. Since the heads are newer..which doesn't mean I don't have a head issue.....but it just maybe from exsessive crank pressure. So venting the breathers into the air instead of recycling it threw the motor, should solve the issue for good.

Just my thoughts
 
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Old Jul 1, 2012 | 12:24 PM
  #247  
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From: Wake Forest, NC
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Well I just replaced my IAC motor. I just have to laugh at how/why HD decided to place that rear bolt where they did. I bought a $12 ratcheting bit driver set and used it to get to that rear bolt - pretty easy.

After starting it up it jumped to 3k rpm like someone else said, however, after less than 2 seconds it dropped down to 1k rpm. Seems to idle fine, don't really notice a difference, but I haven't ridden it yet. We have 100+ degree temps today so I'm going to wait til later in the week.
 
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Old Jul 1, 2012 | 02:19 PM
  #248  
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bigdoghd
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SlimsSG hope that cured it.....mine was oil for like 300 miles started up again then stopped. Now it's been fine for about 200 miles. Not sure what the issue was but it's fine now
 
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Old Jul 13, 2012 | 10:14 AM
  #249  
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Figured I would impart my experience thus far, having just become the owner of a 2007 Street Glide, and this problem has already cropped up.

On the way to work and from work yesterday, it idled down low when coming to a stop, almost stalling. Got home and took apart the air cleaner. I noticed that the butterfly valve had a ring of grease around the stops.....no biggie, just mild. But I opened the valve and cleaned it out well so the surfaces were all shiny. Gave a squirt of wd-40 on either side of the valve and the actuator. Also a tiny squirt up into the IAC.

Since just after buying the bike, I replaced the air cleaner with the K&N version of the stock filter, I went ahead and put the stock filter back on after cleaning it. I know, I should have eliminated one thing at a time....but

Put her all back together and went for a ride. Eevery stop the idle came back to 1K and stayed between 900 and 1K consistently. Put it up for the night and took the bike to work this morning - same route as always. Again no problems, idle never dropped below 900 or so...

I don't have a warm fuzzy that I have cured the problem, but I think that the general area of concern at least mechanically seems to be in the throttle body/IAC area.

Leaving for the big Sturgis haul in a few weeks, so I am going to give the bike to my stealer next week to have them check this issue all over, at least then I will know they are aware and possibly may find something more. The guy I got this bike from had no maintenance history to give me, so although it has 15K on it, I have no idea if he ever even brought it in after break in for idle and throttle cable adjustments.

Just thought I'd throw in my 2 cents. Great info on this thread by the way.

TN
 
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Old Jul 13, 2012 | 02:09 PM
  #250  
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Originally Posted by flynavy
Figured I would impart my experience thus far, having just become the owner of a 2007 Street Glide, and this problem has already cropped up.

On the way to work and from work yesterday, it idled down low when coming to a stop, almost stalling. Got home and took apart the air cleaner. I noticed that the butterfly valve had a ring of grease around the stops.....no biggie, just mild. But I opened the valve and cleaned it out well so the surfaces were all shiny. Gave a squirt of wd-40 on either side of the valve and the actuator. Also a tiny squirt up into the IAC.

Since just after buying the bike, I replaced the air cleaner with the K&N version of the stock filter, I went ahead and put the stock filter back on after cleaning it. I know, I should have eliminated one thing at a time....but

Put her all back together and went for a ride. Eevery stop the idle came back to 1K and stayed between 900 and 1K consistently. Put it up for the night and took the bike to work this morning - same route as always. Again no problems, idle never dropped below 900 or so...

I don't have a warm fuzzy that I have cured the problem, but I think that the general area of concern at least mechanically seems to be in the throttle body/IAC area.

Leaving for the big Sturgis haul in a few weeks, so I am going to give the bike to my stealer next week to have them check this issue all over, at least then I will know they are aware and possibly may find something more. The guy I got this bike from had no maintenance history to give me, so although it has 15K on it, I have no idea if he ever even brought it in after break in for idle and throttle cable adjustments.

Just thought I'd throw in my 2 cents. Great info on this thread by the way.

TN
You pretty much have it figured out. I've cleaned the IAC orifice 4 or 5 times on my 07. Next time tho use a carb/injector cleaner. WD40 isn't really a good cleaner.
Also, it helps to cycle the IAC while you are spraying.
 
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