Touring Models Road King, Road King Custom, Road King Classic, Road Glide, Street Glide, Electra Glide, Electra Glide Classic, and Electra Glide Ultra Classic bikes.
Sponsored by:
Sponsored by:

Coolant System ECM code

Thread Tools
 
Search this Thread
 
Old Mar 29, 2025 | 09:36 AM
  #11  
elPrez's Avatar
elPrez
Stellar HDF Member
15 Year Member
Photogenic
Photoriffic
Shutterbug
Joined: Mar 2007
Posts: 3,181
Likes: 686
From: Forest Hill, Md
Default

Originally Posted by Oko
First thing I would do is verify you have the upgraded pump. The new one has no thermostat and runs all the time.
(someone correct me if I'm wrong)

Just pull the black cover off. You can tell because it won't have the "blob" that was the thermostat.
The cover then snaps back on to two grommets at the bottom.
In this photo, the newer one is at the bottom. And it's shiny too.

I thought I saw where the new one has an internal thermostat built into it.
at the 1:25 mark
 

Last edited by elPrez; Mar 29, 2025 at 10:33 AM.
Reply
Old Mar 29, 2025 | 09:51 AM
  #12  
ShoreRider's Avatar
ShoreRider
Thread Starter
|
Road Master
Veteran: Navy
15 Year Member
Photogenic
Community Favorite
Joined: Oct 2007
Posts: 927
Likes: 56
From: Memphis, TN via NoVA
Default

[QUOTE=elPrez;21982009]I thought I had seen where the new one has an internal thermostat built into it.
at the 1:25 mark[/QUOTE

It is the OEM black long one, original to the bike. I' just finished removing it and am going to bench test it with 12v to see if it operates.
 
Reply
Old Mar 29, 2025 | 10:42 AM
  #13  
ShoreRider's Avatar
ShoreRider
Thread Starter
|
Road Master
Veteran: Navy
15 Year Member
Photogenic
Community Favorite
Joined: Oct 2007
Posts: 927
Likes: 56
From: Memphis, TN via NoVA
Default

[QUOTE=ShoreRider;21982028]
Originally Posted by elPrez
I thought I had seen where the new one has an internal thermostat built into it.
https://youtu.be/hTsQdDg9CWo?si=E7chAf6VTvSU9n7X at the 1:25 mark[/QUOTE

It is the OEM black long one, original to the bike. I' just finished removing it and am going to bench test it with 12v to see if it operates.
---UPDATE--
Pump off the bike, put 12v to it, nothing. Took apart the pump, seemed as though the impeller was sticking. Separated the impeller, cleaned it well, put pump back together, applied 12v and that biotch spun right up.

Installing the pump now and will run diags and go through the fill/bleed procedure. Keeping my fingers crossed!
 
Reply
Old Mar 29, 2025 | 12:18 PM
  #14  
Rounders's Avatar
Rounders
Seasoned HDF Member
Community Builder
Liked
Loved
Community Favorite
Joined: Mar 2021
Posts: 18,660
Likes: 3,784
From: backwoods
Default

Once you get this settled, replace the pump. They fail prematurely, and at bad times.
 
Reply
Old Mar 29, 2025 | 12:50 PM
  #15  
ShoreRider's Avatar
ShoreRider
Thread Starter
|
Road Master
Veteran: Navy
15 Year Member
Photogenic
Community Favorite
Joined: Oct 2007
Posts: 927
Likes: 56
From: Memphis, TN via NoVA
Default

Originally Posted by Rounders
Once you get this settled, replace the pump. They fail prematurely, and at bad times.
Ayup...that's what Im doing. As soon as I bolted the pump housing up and tightened it, it stopped running. So much for an easy fix.

 
Reply
Old Mar 29, 2025 | 12:56 PM
  #16  
Rounders's Avatar
Rounders
Seasoned HDF Member
Community Builder
Liked
Loved
Community Favorite
Joined: Mar 2021
Posts: 18,660
Likes: 3,784
From: backwoods
Default

I think I would try a long bolt for the strap the holds the pump on. If you could back it out a couple turns you could mount easier. That bold it just a hair to short. I would consider drilling a hole in the plastic cover, to run a tywrap through.

Part of the problem is they shoved in a M8 pump, so the hoses connect weird.
 
Reply
Old Mar 31, 2025 | 05:32 PM
  #17  
Jshopes's Avatar
Jshopes
Stellar HDF Member
5 Year Member
Liked
Loved
Community Favorite
Joined: Apr 2017
Posts: 3,042
Likes: 1,532
From: Bunola pa
Default

I did mine this fall, it failed the same way. The fans worked but pump didnt do anything. A new pump fixed it right up.
 
Reply
Old Mar 31, 2025 | 05:47 PM
  #18  
ShoreRider's Avatar
ShoreRider
Thread Starter
|
Road Master
Veteran: Navy
15 Year Member
Photogenic
Community Favorite
Joined: Oct 2007
Posts: 927
Likes: 56
From: Memphis, TN via NoVA
Default

Originally Posted by Jshopes
I did mine this fall, it failed the same way. The fans worked but pump didnt do anything. A new pump fixed it right up.
Much appreciated. I was able to bench test the pump and ECT. ECT is fine, pump...not so much. The magnetic portion of the removable impeller had broken off in a couple places.

$522 + tax for replacement. 1 week to get it in. Found several standalone replacement pumps for much cheaper, but they don't come with the bracket.
 
Reply
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

10 Most Awkward-Looking Motorcycles Ever Built

 Verdad Gallardo
story-1

Jason Momoa Is Turning Classic Harleys Into PHEVs

 Verdad Gallardo
story-2

Harley-Davidson Fat Boy Becomes a Dark, Decepticon-Inspired Custom

 Verdad Gallardo
story-3

6 Weirdest Harley-Davidsons Ever Sold to the Public

 Verdad Gallardo
story-4

7 Times Harley-Davidson Chucked Tradition Out the Window

 Verdad Gallardo
story-5

7 Surprising Harley-Davidson Products that Are Not Motorcycles

 Verdad Gallardo
story-6

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-7

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-8

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

 Verdad Gallardo
story-9

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

 Verdad Gallardo
Old Mar 31, 2025 | 07:21 PM
  #19  
Jshopes's Avatar
Jshopes
Stellar HDF Member
5 Year Member
Liked
Loved
Community Favorite
Joined: Apr 2017
Posts: 3,042
Likes: 1,532
From: Bunola pa
Default

Originally Posted by ShoreRider
Much appreciated. I was able to bench test the pump and ECT. ECT is fine, pump...not so much. The magnetic portion of the removable impeller had broken off in a couple places.

$522 + tax for replacement. 1 week to get it in. Found several standalone replacement pumps for much cheaper, but they don't come with the bracket.
i figured i could have rigged up something to work with the information available here, but, even though i didnt want to give hd a dime, i felt better replacing the hoses and clamps and all too. Its all fresh and ready to go and i guess i have some confidence in it. I feel good about it anyway.
 
Reply
Old Mar 31, 2025 | 07:24 PM
  #20  
ShoreRider's Avatar
ShoreRider
Thread Starter
|
Road Master
Veteran: Navy
15 Year Member
Photogenic
Community Favorite
Joined: Oct 2007
Posts: 927
Likes: 56
From: Memphis, TN via NoVA
Default

Originally Posted by Jshopes
i figured i could have rigged up something to work with the information available here, but, even though i didnt want to give hd a dime, i felt better replacing the hoses and clamps and all too. Its all fresh and ready to go and i guess i have some confidence in it. I feel good about it anyway.
The hoses and clamps are the easy part for me, have that stuff in my misc parts cabinets. It the bracket and retaining clamps for the motor that's the showstopper for me.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Smittyjf
Milwaukee Eight (M8)
16
Jul 1, 2022 03:24 PM
RoadHog659
2014-2024 Touring Models
25
Dec 1, 2020 05:31 PM
sifularson
2014-2024 Touring Models
63
Jul 6, 2018 11:24 PM
Lazz131
Screamin Eagle CVO Models
2
May 10, 2017 02:09 PM
Donlu30
2014-2024 Touring Models
11
Sep 19, 2016 09:54 AM




All times are GMT -5. The time now is 02:51 PM.

story-0
10 Most Awkward-Looking Motorcycles Ever Built

Slideshow: Not every motorcycle can be a design icon, and these machines prove that bold styling doesn't always age gracefully.

By Verdad Gallardo | 2026-06-12 11:58:41


VIEW MORE
story-1
Jason Momoa Is Turning Classic Harleys Into PHEVs

Slideshow: Jason Momoa's latest restoration project blends 1920s Harley-Davidsons with modern electric technology, creating some of the most unusual hybrid motorcycles ever built.

By Verdad Gallardo | 2026-06-10 17:18:58


VIEW MORE
story-2
Harley-Davidson Fat Boy Becomes a Dark, Decepticon-Inspired Custom

Slideshow: Killer Custom's latest build relies on styling changes rather than performance upgrades, giving the cruiser an entirely different personality.

By Verdad Gallardo | 2026-06-03 18:28:05


VIEW MORE
story-3
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-4
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-5
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-6
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-7
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-8
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-9
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