Free 7 Day Trial RV GPS App RV Trip Planner Campground Reviews RV Maintenance Free 7 Day Trial ×
RV Trip Planning Discussions

Go Back   iRV2 Forums > POWER TRAIN GARAGE FORUMS > Cummins Engines
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
 
Thread Tools Search this Thread Display Modes
 
Old 03-18-2010, 08:46 PM   #1
Member
 
MACRacing's Avatar
 
Monaco Owners Club
Join Date: Feb 2010
Posts: 47
code 278 Lift pump circuit

I recently purchased a 2002 Monaco diplomat with the cummins ISC and when driving it home the warning light would come on intermittently. I have only ran it a few times since with no warning light until starting it tonight. I checked and the code set was 278 lift pump circuit. After shutting the engine off to get the code and then restarting it the warning light stayed off.

Any one have an idea of the cause? Or the problem this would indicate? I am not sure if this code would be from the pressure the lift pump is generating, and thats the circuit the code it referring to or if its referring to an electrical circuit and the voltage is off?

Thanks
Mat
__________________
2002 Monaco Diplomat
MACRacing is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 03-19-2010, 10:24 AM   #2
a k
Registered User
 
Newmar Owners Club
Join Date: Jun 2009
Posts: 1,142
Try this

Try This
Attached Files
File Type: pdf 278 code.pdf (123.0 KB, 1256 views)
a k is offline   Reply With Quote
Old 03-19-2010, 07:34 PM   #3
Member
 
MACRacing's Avatar
 
Monaco Owners Club
Join Date: Feb 2010
Posts: 47
Perfect, I will start on it tomorrow. Thank You
Mat
__________________
2002 Monaco Diplomat
MACRacing is offline   Reply With Quote
Old 03-31-2010, 05:27 PM   #4
a k
Registered User
 
Newmar Owners Club
Join Date: Jun 2009
Posts: 1,142
Did you get it fixed?
a k is offline   Reply With Quote
Old 04-01-2010, 07:07 AM   #5
Member
 
MACRacing's Avatar
 
Monaco Owners Club
Join Date: Feb 2010
Posts: 47
Sorry I should have posted an update. We left on our first trip in the motor home last Friday and are still out. Since I had such little time I had a local mechanic take over and he ended up replacing the lift pump. So far on this trip no warning lights. Not sure what the exact problem was but at least its fixed.
Thanks again
Mat
__________________
2002 Monaco Diplomat
MACRacing is offline   Reply With Quote
Old 04-01-2010, 10:30 AM   #6
a k
Registered User
 
Newmar Owners Club
Join Date: Jun 2009
Posts: 1,142
Great.
a k is offline   Reply With Quote
Reply



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
I need some water pump help..... NALSO RV Systems & Appliances 7 06-25-2009 03:51 AM
Supply and Demand, Noisy water pump. Letsgoagain MH-General Discussions & Problems 3 11-03-2008 08:11 AM
Sureflo extreme series water pump zeddy MH-General Discussions & Problems 2 03-03-2008 04:41 AM
Shurflo smart sensor water pump Max Hubrich MH-General Discussions & Problems 12 11-16-2007 04:18 PM
shurflo water pump problem Stubborn Newmar Owner's Forum 8 03-30-2007 05:48 AM

» Featured Campgrounds

Reviews provided by


All times are GMT -6. The time now is 02:04 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, vBulletin Solutions, Inc.