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 05-15-2021, 11:50 AM   #1
Junior Member
 
Join Date: May 2021
Location: California
Posts: 11
Question 2004 ISB overheating

2004 Fleetwood expedition 5.9 ISB overheating, also put banks system and when it was installed it worked good till turbo went south which was not caused from Banks system, it was the sector shaft went bad. Took it in to Cummins they replaced turbo, exhaust manifold and gaskets, side note; not real happy with the cost, I should have done it myself except in those years the turbo had to be programed there is more to that story for a later date.
I replaced air charge cooler radiator and t-stat, belt and a few pulleys. Still going up hill it will get to 217 if i let it go that far. On the flat 191. Never had a problem before, this all stem after the turbo installation. they made a high flow T-stat for 2002 will that fit in a 2004 does anyone know, cannot find any specs on size between 2002 and the 2004 any help would greatly be appreciated.
autobob 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 05-15-2021, 12:02 PM   #2
Senior Member
 
Join Date: Oct 2014
Posts: 2,621
Direct drive fan or clutched fan?


Fan blades OK?
__________________
Brett Wolfe
Ex: 2003 Alpine 38FDDS. Ex: 1997 Safari Sahara. Ex: 1993 Foretravel U240
wolfe10 is offline   Reply With Quote
Old 05-15-2021, 07:23 PM   #3
Senior Member
 
Join Date: Apr 2011
Posts: 185
What was the air temp?

They tell you the turbo has to be programmed it doesn’t the reason that era turbos go wonky is because the vGT “engine brake” part of the turbo has aluminum veins that slide in and out of a stainless ring so as the turbo gets hot and the stainless ring bangs against the aluminum veins the veins get rough causing the turbo to not be able to do it’s pre start thing which is the veins slide all the way in and out if it can’t do this it trips the code.

As far as the banks system on your Motorhome is it the plug In computer module or something else?

It sounds like the shop did not plug it back in.
camping fam is offline   Reply With Quote
Old 05-16-2021, 07:35 AM   #4
Junior Member
 
Join Date: May 2021
Location: California
Posts: 11
ISB overheat

New fan and belts 90 deg outside . Checked Banks sys. it is working. Did get a code for old turbo. no boost and power derate. Did replace t-stat but I still think it is either the 1 1/2 year turbo or t-stat. Talk to Cummins they what me to bring it in and they will check it out for another 600.00 or more only 1 year warranty on turbo. We canceled out trip last year because of Covid so I might have 500 miles on it since the turbo was replaced. Cummis didn't care.
autobob is offline   Reply With Quote
Old 05-16-2021, 08:04 PM   #5
Senior Member
 
Ray,IN's Avatar
 
Join Date: Aug 2001
Location: North America somewhere
Posts: 22,825
When was the last time you cleaned the radiator "sandwich"?
__________________
2000 Winnebago Ultimate Freedom USQ40JD, ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG 11B5MX,Infantry retired;Good Sam Life member,FMCA." My fellow Americans, ask not what your country can do for you, ask what you can do for your country. John F. Kennedy
Ray,IN is offline   Reply With Quote
Old 05-17-2021, 06:58 AM   #6
Junior Member
 
Join Date: May 2021
Location: California
Posts: 11
ISB overheat

Just replaced both cac and radiator, First trip since I replaced them.
autobob is offline   Reply With Quote
Old 05-17-2021, 08:23 AM   #7
Senior Member
 
Join Date: Jul 2018
Posts: 151
If the fan was removed was it reinstalled in the correct orientation?
randomledder is online now   Reply With Quote
Old 05-17-2021, 08:57 PM   #8
Junior Member
 
Join Date: May 2021
Location: California
Posts: 11
ISB overheat

As far as I can tell it blows all the air out through radiator. When I took off the old one I not notice any difference when I put the new one on.
autobob is offline   Reply With Quote
Old 05-18-2021, 08:37 AM   #9
Senior Member
 
Join Date: Jul 2018
Posts: 151
A fan that is put on backwards will still blow in the same direction. Just at a substantially reduced airflow. We used to do this in the winter in Arctic conditions when we were unable to use a clutch type fan.
randomledder is online now   Reply With Quote
Old 05-19-2021, 09:00 AM   #10
Junior Member
 
Join Date: May 2021
Location: California
Posts: 11
ISB overheat

Thanks for the info I will double check the fan again.
autobob is offline   Reply With Quote
Old 05-24-2021, 08:46 AM   #11
Junior Member
 
Join Date: May 2021
Location: California
Posts: 11
ISB overheat

Rear engine looking at the fan from the rear of coach clockwise rotation.
autobob is offline   Reply With Quote
Old 05-25-2021, 09:32 AM   #12
Junior Member
 
Join Date: May 2021
Location: California
Posts: 11
ISB overheat

I want to thank randomleeder for pointing out my blunder, I did install the fan backward took it off yesterday and rechecked. What I did was looking at it from the inside of the coach instead the outside.
autobob is offline   Reply With Quote
Reply

Tags
heat, heating, overheating



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
Cummins ISB 340 Engine Overheating Overheat Fan Clutch Thermostat Cooling etc. f14av8r Cummins Engines 239 06-13-2021 03:55 PM
Overheating slight grade - ISB 6.7 finnaz Cummins Engines 22 06-02-2017 01:21 PM
Red ISB overheating RonnieNye Tiffin Owner's Forum 11 03-19-2014 06:51 AM
ISB 350 Overheating jdcosgrove Cummins Engines 17 08-19-2011 10:20 PM
2009 ISB 6.7 overheating dalcope Freightliner Motorhome Chassis Forum 10 01-23-2011 06:09 PM


All times are GMT -6. The time now is 06:13 PM.


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