Engine Mechanical Topics Discussion for motor builds, cams, head work, stripped bolts and other engine related issues. The good and the bad. If it goes round and around or up and down, post it here.

2010 fxdwg stalling at idle and surging.

Thread Tools
 
Search this Thread
 
Old Apr 27, 2020 | 02:30 PM
  #1  
john hagerty's Avatar
john hagerty
Thread Starter
|
Stage I
Joined: Apr 2020
Posts: 1
Likes: 0
From: Ohio
Default 2010 fxdwg stalling at idle and surging.

My 2010 Dyna is stalling at idle and surging at low rpms. Intially I thought it was bad gas. It was not. Next I replaced the throttle position sensor and the engine temperature sensor. Nah. Not throwing codes but check engine light does come on but not always. My next step is to check fuel pump and line. Any thoughts? Running power commander v as well if that helps.
oh, sometimes when sputtering at idle throttle has slow to no response for a second when trying to accelerate. Help!
new problem, when on run position fuel pump primes for a considerable amount more. Whines a little bit louder as well
 

Last edited by john hagerty; Apr 27, 2020 at 06:11 PM.
Reply
Old Apr 27, 2020 | 02:35 PM
  #2  
fxdup's Avatar
fxdup
Road Warrior
Joined: Mar 2018
Posts: 1,949
Likes: 951
From: Redneck Riviera
Default

Welcome!
 
Reply
Old Apr 27, 2020 | 08:55 PM
  #3  
nevil's Avatar
nevil
Seasoned HDF Member
15 Year Member
Liked
Loved
Community Favorite
Joined: Jul 2008
Posts: 9,282
Likes: 1,139
From: southeast PA
Default

Try cleaning the IAC. Google how to do it. Maybe could have saved you from throwing parts at the bike.
As for your second problem you could be on the right track. Pinholes in the fuel line inside the tank is a common thing after a few years.
 
Reply
Old Apr 27, 2020 | 09:02 PM
  #4  
Cosmic Razorback's Avatar
Cosmic Razorback
Club Member
15 Year Member
Community Builder
Community Influencer
Active Streak: 30 Days
Joined: Aug 2008
Posts: 21,768
Likes: 22,989
From: North Carolina
Riders Club Member
Default

That’s weird there are no codes?
 
Reply
Old Apr 28, 2020 | 06:38 AM
  #5  
BuzzCap7's Avatar
BuzzCap7
Club Member
Joined: Apr 2007
Posts: 69,901
Likes: 18,590
From: South Florida
Default

What? Johnny H.......you come in here and ask a question right off. Don't we get a kiss or sum'ting 1st mate? Huh.

How do u like them apples?

It is optional my friend but you can click
HERE and that will take you to our Welcome Area Only where you can introduce yourself as well as several of us would like to welcome you here.

That is also where you see the HDF rule. On the upper portion of the Welcome Area Only where the “Sticky’s” are. Like where to post what.

See below, this little chart thingy here is just for you mate.






.
This chart will help you post in the right forum.

'hope to see you in the welcome forum.


BuzzCap7
 
Reply
Old Apr 28, 2020 | 10:01 AM
  #6  
jbarr1's Avatar
jbarr1
Road Master
10 Year Member
Liked
Joined: Nov 2015
Posts: 1,238
Likes: 389
From: georgia
Default

Just my opinion, but that seems like a pretty harsh welcome. The welcome area is optional. I, for one, welcome his question.

To the OP——as suggested, clean the IAC and make sure the rubber cap is still on the vacuum port on top of the throttle body.
Good idea to check fuel pressure as well.
 
Reply
Old Apr 28, 2020 | 10:06 AM
  #7  
djl's Avatar
djl
HDF Community Team
Veteran: Army
15 Year Member
Photogenic
Liked
Joined: Jun 2006
Posts: 12,779
Likes: 2,609
From: san antonio
Community Team
Default

As has been suggested, clean IAC and check fuel pressure. If this problem does not present with a full tank but does when tank is half full, pin hole in fuel line is likely.
 
Reply
Old Apr 28, 2020 | 10:37 AM
  #8  
OldEnuf2NoBtr's Avatar
OldEnuf2NoBtr
Seasoned HDF Member
15 Year Member
Liked
Loved
Community Favorite
Joined: Dec 2009
Posts: 9,165
Likes: 1,910
From: Doghouse... mostly
Default

On the top of the throttle body is a small black vacuum hose. Make sure that it's still connected and/ or not split.
 
Reply
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

6 Weirdest Harley-Davidsons Ever Sold to the Public

 Verdad Gallardo
story-1

7 Times Harley-Davidson Chucked Tradition Out the Window

 Verdad Gallardo
story-2

7 Surprising Harley-Davidson Products that Are Not Motorcycles

 Verdad Gallardo
story-3

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-4

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-5

Killer Custom's Jail Break Is The Breakout That Refused to Blend In

 Verdad Gallardo
story-6

Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

 Verdad Gallardo
story-7

Harley-Davidson Reveals Super Cool Cafe Racer Concept

 Verdad Gallardo
story-8

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

 Verdad Gallardo
story-9

10 Motorcycles You Should Never Buy

 Joe Kucinski
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Landon Martin
Softail Models
0
Oct 11, 2019 11:01 AM
dg6450
Touring Models
4
Aug 18, 2014 07:50 PM
mmeddle1
Touring Models
4
Apr 2, 2012 04:05 PM
kimpearsonusa
Touring Models
8
Feb 18, 2011 05:32 PM
1fathog
Touring Models
5
Apr 7, 2010 09:48 PM




All times are GMT -5. The time now is 02:31 AM.

story-0
6 Weirdest Harley-Davidsons Ever Sold to the Public

Slideshow: From military-inspired singles to scooters and three-wheel utility vehicles, these Harleys took the company far outside its comfort zone.

By Verdad Gallardo | 2026-06-02 18:34:10


VIEW MORE
story-1
7 Times Harley-Davidson Chucked Tradition Out the Window

Slideshow: Harley-Davidson built its reputation on nostalgia, but every so often, the company took a hard left turn into the future.

By Verdad Gallardo | 2026-05-20 11:18:19


VIEW MORE
story-2
7 Surprising Harley-Davidson Products that Are Not Motorcycles

Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.

By Verdad Gallardo | 2026-04-29 16:50:35


VIEW MORE
story-3
8 Best Harley-Davidson Motorcycles Ever

Slideshow: Not every Harley gets it right, but these are the ones that genuinely earned their reputation.

By Pouria Savadkouei | 2026-04-15 14:23:21


VIEW MORE
story-4
10 Worst Harley-Davidson Motorcycles Ever

Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.

By Pouria Savadkouei | 2026-04-01 20:01:09


VIEW MORE
story-5
Killer Custom's Jail Break Is The Breakout That Refused to Blend In

Slideshow: Killer Custom's "Jail Breaker" build focuses more on stance and visual aggression than mechanical overhaul.

By Verdad Gallardo | 2026-03-18 19:20:32


VIEW MORE
story-6
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.

By Verdad Gallardo | 2026-03-07 16:15:30


VIEW MORE
story-7
Harley-Davidson Reveals Super Cool Cafe Racer Concept

Slideshow: Harley-Davidson's new RMCR concept revives the café racer formula with modern hardware-and it may be exactly the reset the company needs.

By Verdad Gallardo | 2026-03-04 12:23:37


VIEW MORE
story-8
Engraved Rebellion: Inside Bundnerbike's Glam Rock II

Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.

By Verdad Gallardo | 2026-02-24 18:19:44


VIEW MORE
story-9
10 Motorcycles You Should Never Buy

Slideshow: There is no shortage of great motorcycles to buy, but we would avoid these ten.

By Joe Kucinski | 2026-02-19 14:50:51


VIEW MORE