Go Back   iRV2 Forums > THE OWNER'S CORNER FORUMS > Country Coach Owners Forum
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 03-11-2015, 01:59 PM   #15
Senior Member
 
Join Date: Aug 2011
Posts: 114
I suspect your problem has nothing to do with the fuel tank unless your fuel line is sucking air at the connection. The 2007 vintage motorhomes do not have the OBDII system that gasoline cars have. Also the gas caps are vented but they only allow air into the tank. They do not allow air to escape the tank. As far as roll over valves in the vent hose (which I doubt), if the motorhome gets upside down the fuel will be running out of the filler tubes which are much larger than the vents. I am sure all Country Coaches are not the same but in our 2007 the vent hoses leaves the top of the fuel tank and runs over to the filler tubes just inside the fuel cap and connects there. You can see it if you remove the cap and look just inside the tube on top.

Has the lift pump been checked? Every time you turn the ignition switch to run, the lift pump will run for about 30 seconds. Easy to hear if the engine is not running.

Have the fuel and fuel/water separator filters been replaced? Common problem.

I remember hearing of the same problem a while back and they could not find what was causing it. It turned out to be the mount for the fuel filter had a very small crack in it which was allowing air to be drawn into the fuel system. Very difficult to see and with the air in the system the fuel pump could not bring the pressure up to where it should be.

Just some thoughts,

Barney
07 Inspire 52059


Quote:
Originally Posted by smlranger View Post
Well according to CC, I do have rollover valves on the fuel tank vents. However, they say issues with some valves were in earlier model years....2002-2003.

I'd rather be beat with a big stick than to have to take the bedroom apart again so Cummins can access the top of the engine, but I guess if I am going to find the issue for the fuel delivery problem, I'm going to have to take the coach back there.

At this point, I'm missing my old CAT 3126E which was never in the shop for anything other than routine maintenance in 8 years of ownership.
__________________

__________________
Barney
07 Inspire 52059
BarneyM 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 03-11-2015, 04:57 PM   #16
Moderator Emeritus
 
smlranger's Avatar


 
Country Coach Owners Club
Freightliner Owners Club
Join Date: Sep 2004
Location: Glen Allen, VA
Posts: 7,271
Blog Entries: 1
Quote:
Originally Posted by BarneyM View Post
I suspect your problem has nothing to do with the fuel tank unless your fuel line is sucking air at the connection. The 2007 vintage motorhomes do not have the OBDII system that gasoline cars have. Also the gas caps are vented but they only allow air into the tank. They do not allow air to escape the tank. As far as roll over valves in the vent hose (which I doubt), if the motorhome gets upside down the fuel will be running out of the filler tubes which are much larger than the vents. I am sure all Country Coaches are not the same but in our 2007 the vent hoses leaves the top of the fuel tank and runs over to the filler tubes just inside the fuel cap and connects there. You can see it if you remove the cap and look just inside the tube on top.

Has the lift pump been checked? Every time you turn the ignition switch to run, the lift pump will run for about 30 seconds. Easy to hear if the engine is not running.

Have the fuel and fuel/water separator filters been replaced? Common problem.

I remember hearing of the same problem a while back and they could not find what was causing it. It turned out to be the mount for the fuel filter had a very small crack in it which was allowing air to be drawn into the fuel system. Very difficult to see and with the air in the system the fuel pump could not bring the pressure up to where it should be.

Just some thoughts,

Barney
07 Inspire 52059
Both fuel filters were changed and I cut the old fuel/water separator filter open to see if there was evidence of any algae and it was clean.

Cummins did not do the full diagnostics since the code was inactive when I last took the coach there and it ran for 2 hours on their dyno flawlessly.

I will carefully inspect both of the filter housings for cracks. The coach will run like a champ then, without any warning, I get the light, the code and the engine de-rate.
__________________

__________________
'07 Country Coach Allure 470 Siskiyou Summit #31578, Cummins ISL 425; 2014 Ford F150 toad; Air Force One Toad Brake.
Glen Allen, VA; Smith Mountain Lake, VA.
smlranger is offline   Reply With Quote
Reply

Tags
fuel, tank



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
Question - Aspire Fuel Tank Capacity LDMcL Entegra Owner's Forum 11 02-19-2015 09:40 PM
Fuel Tank pete davis Palazzo Motorhomes 6 02-11-2015 01:45 PM
Dropping Fuel Tank -- 2000 Horizon Jagnweiner Freightliner Motorhome Chassis Forum 11 09-07-2014 10:49 PM
Changing Tank Drain Valves - Elec or Cable andy29847 5th Wheel Discussion 3 08-03-2014 05:21 PM
99 Winne Chieftain 33B fuel pump troubleshooting Elexwiz Ford Motorhome Chassis Forum 38 04-25-2014 08:00 AM

» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 04:42 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.