Good Sam Club Open Roads Forum: Onan 5500 - too much fuel?
Open Roads Forum Already a member? Login here.   If not, Register Today!  |  Help

Newest  |  Active  |  Popular  |  RVing FAQ Forum Rules  |  Forum Posting Help and Support  |  Contact  

Search:   Advanced Search

Search only in Class A Motorhomes

Open Roads Forum  >  Class A Motorhomes  >  All

 > Onan 5500 - too much fuel?

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 3  
Next
map40

Florida

Senior Member

Joined: 01/15/2005

View Profile



Posted: 06/16/18 12:25pm Link  |  Quote  |  Print  |  Notify Moderator

I have my Onan 5500 of my 36 Fiesta shut down with code 36. I saw fuel coming from the air filter, so I took it apart, empty the bowl, put some cleaner, tried again, same thing. I disconnected the fuel pump, started right up. Reconnected while running, after a few seconds it would try to stop. Disconnected the pump, surged right up. After a few minutes it runs out of fuel, sor I reconnect the pump for a few seconds and it runs great.
Could it be the that the fuel pump is pumping too much fuel? Any help will be appreciated!


2007 and 08 Majestic 28As, 2013 Sunseeker 3070DS, 2015 and 2 2016 Jayco 31XLs
Life rocks when your home rolls

SidecarFlip

SE Michigan

Senior Member

Joined: 10/09/2016

View Profile


Offline
Posted: 06/16/18 12:29pm Link  |  Quote  |  Print  |  Notify Moderator

You have a stuck float needle or gunk in the passages, Take it off, take it apart and clean it.


2015 Backpack SS1500
1997 Ford 7.3 OBS 4x4 CC LB

wolfe10

Texas

Senior Member

Joined: 10/08/2000

View Profile


Offline
Posted: 06/16/18 12:37pm Link  |  Quote  |  Print  |  Notify Moderator

SidecarFlip wrote:

You have a stuck float needle or gunk in the passages, Take it off, take it apart and clean it.


Yup, the most likely suspect.


Brett Wolfe
2003 Alpine 38'


FMCA Forum: www.community.fmca.com/index

Diesel RV Club:http://www.dieselrvclub.org/

K Charles

Connecticut

Senior Member

Joined: 03/06/2010

View Profile



Good Sam RV Club Member

Offline
Posted: 06/16/18 01:11pm Link  |  Quote  |  Print  |  Notify Moderator

SidecarFlip wrote:

You have a stuck float needle or gunk in the passages, Take it off, take it apart and clean it.

yes, or the float doesn't float anymore





turbojimmy

New Jersey

Senior Member

Joined: 12/21/2013

View Profile


Offline
Posted: 06/17/18 10:56am Link  |  Quote  |  Print  |  Notify Moderator

K Charles wrote:

SidecarFlip wrote:

You have a stuck float needle or gunk in the passages, Take it off, take it apart and clean it.

yes, or the float doesn't float anymore


That would be my guess if it's already been cleaned out. Take the float off and shake it. If you hear gas moving around in there, that's your problem.


1984 Allegro M-31 (Dead Metal)



MrWizard

Traveling

Moderator

Joined: 06/27/2004

View Profile



Posted: 06/17/18 12:46pm Link  |  Quote  |  Print  |  Notify Moderator

this a carburetor problem
the fuel pump is find
they can wear out and fail, but they never get stronger and pump too much


Radiate The Happy
....

Connected using Verizon and AT&T
1997 F53 Bounder 36s


RLS7201

Beautyful Downtown Gladstone, MO

Senior Member

Joined: 10/26/2002

View Profile


Offline
Posted: 06/17/18 05:49pm Link  |  Quote  |  Print  |  Notify Moderator

Had the same issue on my Onan 7k generator. Problem was a cracked plastic float. That was 14 years ago and Onan sold me a float. If Onan no longer sells floats try a small engine shop. They will probably have a interchange that will work.

Richard


95 Bounder 32H F53
460/528 stroker
Web Master
MWPSchooners.com

Trumpet Player

USA

Senior Member

Joined: 01/08/2006

View Profile



Good Sam RV Club Member

Offline
Posted: 06/17/18 07:45pm Link  |  Quote  |  Print  |  Notify Moderator

SidecarFlip wrote:

You have a stuck float needle or gunk in the passages, Take it off, take it apart and clean it.


Give that man a cigar!


2012 American Coach Revolution


77rollalong

Brighton Ontario

Senior Member

Joined: 02/03/2018

View Profile


Offline
Posted: 06/18/18 05:10am Link  |  Quote  |  Print  |  Notify Moderator

bad float, leaking needle seat, of incorrect float level adjustment, main jet adjustment...

Blaster Man

USA

Senior Member

Joined: 08/01/2007

View Profile


Offline
Posted: 06/18/18 03:17pm Link  |  Quote  |  Print  |  Notify Moderator

If the above solutions do not work, call Onan, they are very helpful.


2014 American Eagle

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 3  
Next

Open Roads Forum  >  Class A Motorhomes  >  All

 > Onan 5500 - too much fuel?
Search:   Advanced Search

Search only in Class A Motorhomes


New posts No new posts
Closed, new posts Closed, no new posts
Moved, new posts Moved, no new posts

Adjust text size:

© 2018 CWI, Inc. © 2018 Good Sam Enterprises, LLC. All Rights Reserved. | Terms of Use | PRIVACY POLICY | YOUR PRIVACY RIGHTS