Question about 2000 Harley Davidson FLHTCUI Electra Glide Ultra Classic

2 Answers

2003 Ultra Classic shuts down

My bike loses all electrical power when riding in the city after it gets hot. Three dealers have performed numerous fixes to no avail. The engine is not overheating.

Posted by on

  • p_oneill01 Jun 07, 2010

    No lights or anything, hav to reset the clock even after power comes back on. I have learned from others it is likely the circuit breaker tripping after it gets hot. This makes sense. HD needs to come up with a fix. After 2004 they started using fuses instead of a breaker. They had a recall on 2003's that had a 40 amp and replaced it with a 50 amp. They have replaced 4 of my circuit breakers. The wierd thing is my bike has over 66,000 miles on it and never had this problem except for the last year. I have had a couple of ignitin switches replaced also.

  • Johnny Williams
    Johnny Williams May 08, 2012

    Did you find a solution? Mine is doing the exact same thing.....


2 Answers

  • Level 1:

    An expert who has achieved level 1.


    An expert whose answer got voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 6 Answers

This problem has affected may of us. The problem could be the ignition switch. I have changed 3 on my bike and have had 2 other friends that have 2004 FLHTCU And 2004 FLTC that have had to do the same. Ae there any other symtoms? Do your Lights stay on or quit what esle is affected?

Posted on Jun 05, 2010

  • b166mon3y Jul 25, 2011

    My 03 heritage just did the same thing today. No power. everything's connected.. fender lights, horn and odometer reading works. Any ideas?


  • Level 1:

    An expert who has achieved level 1.


    An expert that has over 10 points.


    An expert whose answer got voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 9 Answers

Could be the regulator/rectifier unit at the front of the engine. I replaced one recently with a new ,non genuine Harley part and that was faulty too. When I replaced that the problem was fixed. Don't waste your money on cheap parts.

Posted on Jun 05, 2010

1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Blowing fuse for cruise control 2000 HD Ultra green light go out while riding?

Hi, Agustin before diagnosing your blown fuse issue check the bottom of your seat if it's metal and comes in close proximity to the positive battery post you need to take the necessary steps to ensure there is no contact (electrical tape, thick rubber insulation, hammer a dent in the seat bottom etc.) also you are going to need a wiring from your service manual a test light, an ohmmeter and plenty of extra fuses. If you turn on your ignition switch and immediately blow a fuse you have a hard/dead short and is usually easy to find. With a test light connected to the hot side of the blown fuse holder start stabbing the wire/s that leads away from the fuse holder and towards the ignition switch, you test light will illuminate validating the short. When the test light fails to illuminate you have passed the short and need to back up until the test light illuminates, then look in the immediate area for the short.
If you driving down the road for 30 minutes or 15 miles and blow a fuse you have soft/flying short and may take some time and patience to find.
If the main fuse/circuit breaker constantly blows/trips while riding you probably have a faulty battery terminal connection. Check battery terminals for damage or corrosion, check battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary. Any other fuses that constantly keep blowing while riding are usually caused by a loose or corroded ground wire in the circuit, which means you have to check, inspect, test each and everyone with and ohm meter set on a low ohm scale 100 ohms or less . Simply touch one lead to the ground source and the other lead to the battery negative terminal, a reading of zero indicates a clean solid ground. Any number reading or infinity indicates a poor ground and needs to be repaired. Poor or weak grounds require excessive additional amperage to complete the circuit which in turn blows the small amperage fuse. For more information about your issue and valuable "FREE" downloads that you will need please click on the links below and for more specific information or questions at no charge please feel free to contact me at Good luck and have nice a day.
08UC Cruise Control Blows Fuse Harley Davidson Forums
Blowing fuses Harley Davidson Forums
2008 Ultra Classic cruise control problem Page 3 Twin Forum Harley...
Harley Davidson Manuals Mark Workshop

Sep 05, 2016 | 2000 Harley Davidson FLHTCUI Electra Glide...

1 Answer

Why does my Harley Davidson 2003 Ultra Classic shuts down when hot?

Thermal safety cutout is shutting down ignition, if you don't feel the engine is that hot replace thermal cutout and relay

Aug 08, 2014 | 2003 Harley Davidson FLHTCUI Electra Glide...

1 Answer

"09" Harley Ultra Classic, After

Hi Wingn1, call, take a ride or trailer your bike over to your local dealers service/parts department, I'm sure they will be happy to take your Harley Davidson for a test ride if necessary/possible and offer professional advice and assistance concerning your issue. Good luck have a nice day.

Aug 22, 2011 | Harley Davidson Bullet 125 Motorcycles

2 Answers

As i'm riding the engine will shut off sometimes and I have to restart at the start button. Any Ideas?

I also have a 2003 Ultra that would shut down for no reason while I was driving, started happening 3 months after I had the bike, very dangeous, happened in a curve once, took it to the dealer and they were having problems a module for the ignition I thought. They replaced it twice, then told me that because I had a trailer wiring harness hooked up that was causing interferance, they took that off and havent had the problem since. Didnt use the trailer hitch much anyways, but dont know at this point if it was the module or the harness. Hope this helps.

Oct 16, 2010 | 2003 Harley Davidson FLHTCUI Electra Glide...

1 Answer

Heating up, shuts off, Shutting off going about an 1 hour trip. hearing small noise in front of engine. Seams to be running hot. service techs put it on dyna but no results. Shut off again next trip. ran...

Had a simuliar problem, Bike would have a total shutdown a High Temps/Low Speeds/High RPMs. Everything would reset itself after appox 2 minutes. Everything would shutdown Electric and engine.
2 Harley dealers spent 75 hours diagnosing it, dealer could not reproduce it. Last repair was to replace battery cables. Seems to have fixed it. Have ridden 15oo miles since repair. Problem reacurred once last time I rode. Again complete shutdown bike restored after 2 minutes. Did not happen again the rest of the day over 200 miles

Aug 30, 2010 | 2000 Harley Davidson FLHTCUI Electra Glide...

5 Answers

My 2003 Harley Davidson Ultra Classic is cutting out on me when I am drive down the road what might be the problem and when this happens the engine will die. If you leave set for a 1/2 an hour it will...

I had a problem like that on my 2003 ultra classic. turns out there was a recall on some electric block in the fairing. It was a main connection power block kinda thing. Anyway they replaced it and then it never happened again.

it would ride a while on a hot day 25 min freeway and then just shut down. wait and cool down and it would restart.

I hope this helps.

Aug 07, 2010 | 2003 Harley Davidson FLHTCUI Electra Glide...

4 Answers

With out warning all power to bike shuts down /

i think you have a battery fault inside the battery there are lots of plates all joined up if there is a broken joint on the battery turminal post inside your bikes battery all the power just disappears just like that,,,but a slight bump may remake the joint and all is powerd back on again,,,if you could get hold of another battery just to try it out??? or take out your battery and hook up a lamp to it then give the battery posts a wiggel and the battery a thumping if the lamp gos out you just found the problem

Dec 01, 2009 | 2003 Harley Davidson FLHTCUI Electra Glide...

1 Answer

2003 Ultra shuts off while riding

how many lights are you running? try disconnecting the battery and hooking up a shunt with a volt meter or a current meter inline. then check the current with different accessories or everything running. If you have a big load and stereo amp you may need to upgrade the charging system and the Circuit Breaker or try a aftermarket CB.
It happened once to me, riding slow, new pavement, very hot day, spot lights and stereo amp on.
Have a new CB on order but, put on another 4000 miles without another problem????

Jun 29, 2009 | 2003 Harley Davidson FLHTC Electra Glide...

3 Answers


This has to be a blown fuse. If it happened slowley you lost your altenator or battery connection.

Jan 07, 2009 | 2003 Harley Davidson FLHTCUI Electra Glide...

Not finding what you are looking for?
2000 Harley Davidson FLHTCUI Electra Glide Ultra Classic Logo

486 people viewed this question

Ask a Question

Usually answered in minutes!

Top Harley Davidson Experts

Arnie Burke
Arnie Burke

Level 3 Expert

4514 Answers

Gills Lango

Level 2 Expert

195 Answers


Level 3 Expert

4336 Answers

Are you a Harley Davidson Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides