Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test 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
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 03-07-2018, 03:02 PM   #1
Senior Member
 
Join Date: Jun 2011
Posts: 111
1998.5 isb map sensor location

Trying to locate map sensor on 1998.5 isb 275
And are they easy to remove
Could be my problem with lack of power uphills
Worth replacing
Any input would be appreciated
uksteve 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 03-07-2018, 04:46 PM   #2
Senior Member
 
BFlinn181's Avatar
 
Gulf Streamers Club
Join Date: Jan 2012
Location: Cincinnati
Posts: 19,927


It takes a 32 mm (1 1/4") deep socket to remove/replace.
Attached Thumbnails
Click image for larger version

Name:	98.5 ISB 5.9 Cummins.jpg
Views:	839
Size:	213.1 KB
ID:	194873  
__________________

Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
BFlinn181 is offline   Reply With Quote
Old 03-07-2018, 04:59 PM   #3
Senior Member
 
mackwrench's Avatar
 
American Coach Owners Club
Join Date: Apr 2016
Location: North Florida
Posts: 2,331
My question would be do you have a DTC code? If the sensor is bad, or reads out of spec, it should have a check engine light on.

Do you have access to any diagnostic/scan code reader? Many will show live data and you'll be able to see what sensor is reading. Cummins quickserve will have diagnostic test procedure for the sensor as well...

Perhaps describe low power issues, maybe we can figure it out here
__________________
1999 American Eagle
ASE med/heavy certified technician
ASE advanced diesel certified
mackwrench is offline   Reply With Quote
Old 03-08-2018, 02:01 AM   #4
Senior Member
 
Join Date: Jun 2011
Posts: 111
Iíve had new injector pump new lift pump
New turbo and new manifold
Took motorhome out and it was a little underpowered going up hills
Checked for leaks
I did have a leak at inlet to lift pump fixed that but havenít had her out yet unsure if that was the problem
But have been told could be map sensor
No codes are coming up
Donít seem to be getting full turbo boost
uksteve is offline   Reply With Quote
Old 03-08-2018, 02:39 AM   #5
Senior Member
 
Join Date: Jun 2011
Posts: 111
I donít know if this would affect turbo boost
But when I put the rad and cac back in I didnít seal around the tops and side of radiator
So a lot of air was blowing over the top and sides
Would this affect boost
Mines a rear radiator
I have now sealed all around the radiator so the air goes through the middle
Havenít taken her out yet
Can that have caused low boost
uksteve is offline   Reply With Quote
Old 03-08-2018, 09:12 AM   #6
Senior Member
 
BFlinn181's Avatar
 
Gulf Streamers Club
Join Date: Jan 2012
Location: Cincinnati
Posts: 19,927
Not unless the air leaking around the radiator was from the inner cooler. If the engine was overheating it might derate the engine, but I'd think you would see that on the temperature gauge.
__________________

Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
BFlinn181 is offline   Reply With Quote
Old 03-08-2018, 09:30 AM   #7
Senior Member
 
Bob_C's Avatar
 
Join Date: May 2017
Location: Vancouver Wash
Posts: 7,230
Just replaced that sensor.....no check engine light, but had a no start problem.....that sensor is also the boost sensor.......and there was a code stored......code was PO 237
Bob_C is offline   Reply With Quote
Old 03-08-2018, 10:20 AM   #8
Senior Member
 
greystroke's Avatar
 
Monaco Owners Club
Freightliner Owners Club
Holiday Rambler Owners Club
Join Date: Jul 2009
Location: Spring Hill, Florida
Posts: 1,371
I have an ISB275 98.5 24Valve version. I had power problems many years ago. it was intermittent at first and then later it got worse so that it took forever to get up to speed.

I replace my Speed or Crankshaft sensor. It is not shown in the above diagram. Also I am pretty sure I don't have a camshaft sensor.

The crankshaft or speed sensor is the easiest sensor to get to and is located close to the oil pan in approx. center on the passenger side of a DP.

Once I replace it no more acceleration problems.
__________________
98 Endeavor DP, ISB275
RX300, Falcon II hitch, BB Vantage Select
VMSpc, 2002 Grey Ford Powerstroke
TST 507 w/ 10 Sensors
greystroke is offline   Reply With Quote
Reply

Tags
cat



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
Boost map sensor location uksteve Monaco Owner's Forum 1 02-28-2018 08:34 PM
Brand New USA Map - Trade For Smaller Map Durango Dave Just Conversation 0 05-15-2017 06:34 PM
Fuel Economy ISB 5.9 vs ISB 6.7 J Walker Cummins Engines 4 06-05-2013 07:54 PM
Big Rig road map or Big Rig Scenic map deafcone Navigation, Routes & Roads 1 08-16-2012 02:31 PM
Where is the MAP Sensor on a 1994? bstock Ford Motorhome Chassis Forum 7 09-04-2008 06:00 PM

» Featured Campgrounds

Reviews provided by


All times are GMT -6. The time now is 12:55 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2023, vBulletin Solutions, Inc.