Motorcycle

Motorcycle questions? Ask a mechanic.

Ask an Expert,
Get an Answer ASAP!

I have a 2004 hd FLSTFI with 58k miles. A few thousand miles…

Customer Question
I have a 2004 hd...
I have a 2004 hd FLSTFI with 58k miles. A few thousand miles ago, it started intermittenly sounding like one of the heads have shut down during deceleration and engine braking. This problem may continue for an hour or so, or until I shut it off for a while. Then the problem does not occur again for several days to weeks, maybe 1000+ miles. Also, when this problem occurs, my idle drops significantly. I will need to give it throttle to keep it running. Lastly, while this problem is occurring, I experience no degradation in acceleration, nice and smooth. Please advise what to look for.
Submitted: 2 years ago.Category: Motorcycle
Show More
Show Less
Ask Your Own Motorcycle Question
Answered in 10 hours by:
6/1/2015
Motorcycle Mechanic: Steve, Motorcycle Mechanic replied 2 years ago
Steve
Steve, Motorcycle Mechanic
Category: Motorcycle
Satisfied Customers: 7,184
Experience: 30+ yrs. experience, MMI, HD technician, HD early, engine rebuild/performance, bike builder, kit bike program manager, CCI 2001-2004
Verified
check for diagnostic codes:The IM (instrument module) is capable of displaying DTC's (diagnostic trouble codes).Speedometer Self Diagnostics: The speedometer is capable of displaying and clearing speedometer, tachometer, TSM/TSSM and ICM/ECM Diagnostic Trouble Codes (DTC).1- Turn Ignition switch to OFF & Run/Stop switch is to Run.2- Push odometer reset button in & hold.3- Turn ignition switch to Ignition and release odometer reset button. Background lighting sould illuminate, speedometer needle should sweep its full range and indicator lamps (battery, security, low fuel, check engine and cruise) should illuminate. The word “diag” should then appear.4 - Push the odometer reset button once and you will see the selection menu "PSSPt" with the first P flashing.5 - Each letter represents an area of the diagnostics module. The module that is flashing is the one you are going to check. To move from one letter (module) to the next, you push the odometer reset button one time. (from P to S to SP to t and back to P, etc.)P = ECM/ICM (Electronic Control Module [EFI] / Ignition Control Module [Carbureted])S = TSM/TSSM (Turn Signal/ Turn Signal Security Module)SP = speedometerT = tachometer6 - To get the DTC within an area of diagnostics, push and hold the odometer reset button in for 5 seconds and release. If there are any DTC’s the code will be displayed or the word “none” will appear if there are no DTC’s. Push the odometer reset button again to view additional codes if they exist.7 - Record the codes.8 - If DTC’s are not to be cleared, Press and release the odometer reset button. Part number of module will be displayed.NOTE: To determine if a code is current or historic, clear the displayed code by pushing in and holding the odometer reset button ( longer than 5 seconds) until 'clear' comes up. Release the odometer reset button. Turn OFF the ignition switch. Run your bike and shut it down then recheck the DTC’s again by repeating steps 1 to 9. If the code is current it will reappear.9 – Press and release the odometer reset button to continue to the next module.10 – Turn Ignition switch to OFF. let me know what you find and we'll continue from there.Steve
Ask Your Own Motorcycle Question
Customer reply replied 2 years ago
I receive None for all DTC's.The problem only occurs when it is hot outside or after running it hard for a extended period of time. So the engine is hot when the problem starts.
Motorcycle Mechanic: Steve, Motorcycle Mechanic replied 2 years ago
the most common heat related failure with EFI Harley's is the engine temperature sensor.this affects the sir/fuel mixture and can make the engine sound different without affecting performance much, but causing the idle to drop. if you are actually losing a cylinder, it can only be an intermittent failure in your engine management system. the module or the coil. the absence of diagnostic codes usually means there are no monitored equipment failures.that leaves the possibilities of a bad fuel pump, bad fuel regulator, debris in the fuel system or an intermittent failure of the coil or ECM. if system voltage is not correct, this can also cause many of those symptoms to appear. I would start by checking the charging system and battery.measure the battery voltage under the following conditions:- ignition OFF- ignition ON- with the start button depressed- with the engine at about 2,000 rpm. let me know what you find.Steve
Ask Your Own Motorcycle Question
Was this answer helpful?
Ask Jeff Policky Your Own Question
Jeff Policky
Jeff Policky
Jeff Policky, Motorcycle Mechanic
Category: Motorcycle
Satisfied Customers: 2,425
2,425 Satisfied Customers
Experience: Yamaha Gold, Suzuki Gold, Honda Bronze, Polaris Bronze, BRP

Jeff Policky is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry.

Stephanie PElm City, NC

used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future.

David L.Richmond, TX

9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much.

PhilMarysville, CA

Lurch. Thank you very much. I had real doubts about this website but your promptness of response, quick followup and to the point answer with picture was incredible.

CharlesWalnut Creek, CA

As a single woman, I really appreciate an excellent and affordable opinion.
Thank you Geordie, I will not hesitate to contact justanswer in the future!

SueCharleston, WV

Another great insight to what may be the problem. I will have my mechanic take a look at it tomorrow. Thanks again, Frank...you do indeed know your stuff.

JimCastleberry, FL

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

< Previous | Next >

Meet the Experts:

Jeff Policky

Jeff Policky

Motorcycle Mechanic

2,425 satisfied customers

Yamaha Gold, Suzuki Gold, Honda Bronze, Polaris Bronze, BRP

Louie

Louie

Technician

1,281 satisfied customers

25+ yrs. experience

TIMOTO

TIMOTO

Motorcycle Mechanic

1,233 satisfied customers

Honda registered technician, silver level award, former Kawasaki/Suzuki tech, 40+ years exp.

Andre Pilon

Andre Pilon

Motorcycle Mechanic

1,032 satisfied customers

Over 25 years experience, ICS, MMI, Owned shop for 12 years, worked tech-support for Harley Davidson

Kenny O.

Kenny O.

Motorcycle, ATV, Mules, Side by Side's Product Specialist. All Brands

619 satisfied customers

Worked for Kawasaki Motors as a Product Support Specialist (Factory Support) for 24 years

asphaltcycles

asphaltcycles

Motorcycle Mechanic

458 satisfied customers

I operate a motorcycle dealership and CCS Ducati Race team.

Glenn Adams II

Glenn Adams II

Motorcycle/ATV Technician

393 satisfied customers

6 years Motorcycle/ATV/Water Craft; 4 years auto; 18 years carpenter

< Previous | Next >

Related Motorcycle Questions
Ranger 700XP was hard to get in and out of any gear. Now the
Ranger 700XP was hard to get in and out of any gear. Now the shifter moves easy but will not move the belt cover has been removed belt is good and clutches turn. … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
I got this thing and it will not start unless I give it a
I got this thing and it will not start unless I give it a shot of starter fluid … read more
Louie
Louie
Technician
Associate Degree
1,281 satisfied customers
My arctic cat 400 (2007) wont turn over with the starter
My arctic cat 400 (2007) wont turn over with the starter button. when i jump selenoid it will turn over but wont start. … read more
Louie
Louie
Technician
Associate Degree
1,281 satisfied customers
Louie, Our Kawasaki it has a little rust built up inside the
Hi Louie, Our Kawasaki it has a little rust built up inside the gas tank, would you have an experience in what is the best product to use to clean out the rust and which is the best method? Thanks… read more
Louie
Louie
Technician
Associate Degree
1,281 satisfied customers
I think it's the clutch, but here are my symptoms: no
hi. i think it's the clutch, but here are my symptoms: … read more
Steve
Steve
Motorcycle Mechanic
7,184 satisfied customers
Can a pin hole in the gas tank be soldered and what is the
Hello, Can a pin hole in the gas tank be soldered and what is the best product to use to line the gas tank? Thank you… read more
Steve
Steve
Motorcycle Mechanic
7,184 satisfied customers
Recon. been setting up for a time. Charged the battery and
recon. been setting up for a time. Charged the battery and the engine started after several turns. Turned off the engine disconnected the charger. Battery tested hot but cannot get any fire even to th… read more
Louie
Louie
Technician
Associate Degree
1,281 satisfied customers
I have a 2010 Harley with 600 miles. It has been sitting in
I have a 2010 Harley with 600 miles. It has been sitting in my garage. Battery went dead. Replaced with new battery. lights go on but it does not start, not even a crank sound. I replaced clutch handl… read more
Steve
Steve
Motorcycle Mechanic
7,184 satisfied customers
My 1985 Kawasaki zl900 Eliminator is not starting. It's
Hi Pearl, my 1985 Kawasaki zl900 Eliminator is not starting. … read more
Louie
Louie
Technician
Associate Degree
1,281 satisfied customers
2000 fatboy I lost electronic speedometer and odometer. also
2000 fatboy I lost electronic speedometer and odometer. also engine light came on. … read more
Steve
Steve
Motorcycle Mechanic
7,184 satisfied customers
2004 Vulcan 1500 cranks has spark won't start, new plugs new
new fuses fuel pump hoses oil filter new anti freeze checked all wires … read more
Louie
Louie
Technician
Associate Degree
1,281 satisfied customers
Ok, I have one for you! What I have going on is oil pouring
Ok, I have one for you! What I have going on is oil pouring out my head breathers like a faucet every time it gets warm at any sustained rpms. I have an S&S 124" hot kit installed in my 2010 street gl… read more
Steve
Steve
Motorcycle Mechanic
7,184 satisfied customers
I've put 13 risers on my Harley road classic plus it also
yes I've put 13 risers on my Harley road king classic plus it also had a dead battery and no it wont start … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
I have a 2010 Softail Custom with a big bore kit. It's hard
I have a 2010 Softail Custom with a big bore kit. It's hard to start due to the high compression, etc. The battery has 500 CCA and works well. I've read some suggestions to resolve this issue and one … read more
kwiggins29059
kwiggins29059
Associate Degree
219 satisfied customers
I replaced the peacock with a longer non-vacuum one. How
I replaced the peacock with a longer non-vacuum one. How should the vacuum lines be routed? … read more
Steve
Steve
Motorcycle Mechanic
7,184 satisfied customers
I just replace battery now the fuse. Keep blowing. It's a
Yes and I've looked to see if it's grounded anywhere but it's not … read more
Louie
Louie
Technician
Associate Degree
1,281 satisfied customers
My Kawasaki 1600 nomad I can not start it The bike has been
Hi My Kawasaki 1600 nomad I can not start it The bike has been dry stored for 6 months the battery is fully charged the engine turns over the fuel tank was stored full with a fuel enhancer It will fir… read more
Louie
Louie
Technician
Associate Degree
1,281 satisfied customers
Motorcycle. 1996 cbr 600f3. Honda cbr 600f3. I am, i changed
Yes i am, i changed my stator, spark plugs and regulator … read more
kwiggins29059
kwiggins29059
Associate Degree
219 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x