Go Back   iRV2 Forums > MOTORHOME FORUMS > Class A Motorhome Discussions
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 05-07-2011, 06:50 AM   #1
Senior Member
 
OSP1268's Avatar
 
Join Date: Oct 2010
Location: Central Florida
Posts: 524
Ford Shift Points

We have a 2011 motor home with a Ford V-10 & the Ford 5R110W transmission. It seems to me that the engine over rev's prior to shifting into the next gear, especially noticeable when entering onto a freeway ramp. I have not been into a Ford garage yet to have it checked, but was wondering if anyone else seems to notice this. Maybe it is just me and everything is doing what it is supposed to.
__________________

__________________
R & E
No RV at the moment
OSP1268 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 05-07-2011, 10:09 AM   #2
Senior Member
 
jcthorne's Avatar
 
Join Date: Jan 2010
Posts: 474
Please better describe 'overrev' at what rpm is it shifting and what is the throttle position?

I will say that the stock shift strategy was the biggest reason I had VMP retune my coach. I seldom use full available power but the shifts allways seemed ill timed, wrong gear and abnoxious downshifting. The tune cured all that and the drive train is much more setteled and runs great.
__________________

__________________
38ft 2008 Damon Daybreak 3575 (forward kitchen)on Ford 22,000lb chasis, 242" WB.
jcthorne is offline   Reply With Quote
Old 05-07-2011, 10:31 AM   #3
Senior Member
 
The General's Avatar
 
Forest River Owners Club
Freightliner Owners Club
Join Date: Sep 2007
Location: Rancho Cordova, California
Posts: 1,030
Send a message via Yahoo to The General
OSP,

Since you are under warranty, take the time to go to a Ford Truck center and let them tell you if anything is abnormal under any throttle position.
I have a Class A 2008 Ford 362 HP Triton 30-valve V-10 and it shifts "normally" to me. I never push it and use tow/haul gear while traveling in mountain regions. 55-60 MPH is the law in CA while towing.


Steve
__________________
The General is offline   Reply With Quote
Old 05-07-2011, 11:44 AM   #4
Senior Member
 
gauto5150's Avatar
 
Join Date: Apr 2011
Location: Northwest Indiana
Posts: 325
For what it's worth, I've driven a few newer motorhomes with that driveline and they all seemed to "late" shift compared to a car or 1/2 ton truck. I think that's primarily because an RV has a greater strain on the trans so the preset line pressure is increased in the transmission and later shifts are a result. The late/harder shifts may not be as comfortable, but decrease wear and tear on the transmission.
__________________
gauto5150 is offline   Reply With Quote
Old 05-07-2011, 02:22 PM   #5
Senior Member
 
Cat320's Avatar
 
Fleetwood Owners Club
American Coach Owners Club
Join Date: Mar 2011
Posts: 4,742
If the Tow/Haul mode is being used, it increases the shift points to a higher RPMs.
__________________
2014 American Eagle 45T
DD 500
Pulling a Honda CRV
Cat320 is offline   Reply With Quote
Old 05-07-2011, 04:54 PM   #6
Senior Member
 
Damon Owners Club
Ford Super Duty Owner
Join Date: Apr 2011
Posts: 493
I have the same configuration in a Damon Challenger, and I think that you will find that there is nothing wrong, it is simply the "nature of the beast". I have learned to be more "sensitive" when starting out and when accelerating in general, especially with the gas prices being what they are (and may become). There seems to be plenty of power from this set-up and I think it just takes some getting used to how best to get power to the wheels. I love this V-10, however, and after talking to many Ford V10 owners, they seem to think that the engine is one of the best gas engines on the market - dependable and powerful. Keep us informed as to what you learn, if you go to the dealership. I'm sure other Ford owners would benefit from your experience.

Bronk
__________________
bronk is offline   Reply With Quote
Old 05-08-2011, 05:00 PM   #7
Senior Member
 
jcthorne's Avatar
 
Join Date: Jan 2010
Posts: 474
Quote:
Originally Posted by gauto5150 View Post
For what it's worth, I've driven a few newer motorhomes with that driveline and they all seemed to "late" shift compared to a car or 1/2 ton truck. I think that's primarily because an RV has a greater strain on the trans so the preset line pressure is increased in the transmission and later shifts are a result. The late/harder shifts may not be as comfortable, but decrease wear and tear on the transmission.

Just fyi,

In a modern electronicly controlled automatic transmission, shift firmness as controlled by clutch pressure is completley independent of rpm shift point. IE the trans can be told to shift at any point and at any desired clutch application rate. The pressure to the clutches is computer controlled. Thats why the tuners adjust shift strategy as well as engine performance to better suit the actual load and highway use of the motorhome.
__________________
38ft 2008 Damon Daybreak 3575 (forward kitchen)on Ford 22,000lb chasis, 242" WB.
jcthorne is offline   Reply With Quote
Old 05-08-2011, 09:43 PM   #8
Registered User


 
Monaco Owners Club
Join Date: May 2009
Posts: 3,198
I had a 99 pacearrow that was terribly rev happy. A good tune from Brazels got everything under control.
__________________
JimM68 is offline   Reply With Quote
Old 05-09-2011, 08:23 AM   #9
Member
 
Kathy_MD's Avatar
 
Join Date: Sep 2008
Posts: 75
I'll repost what I stated in another thread.

I installed a 5Star tune (they are a sponsor of one of the forums here) in my Daybreak F53 V10 . I took a trip that started in Maryland, to Savannah, across to Nashville, up to St. Louis, then to Kansas, back to Maryland. I had a toad behind me the entire trip.

The things I noticed:
1. Acceleration response was quick.
2. Shift points were where I thought they should be. Meaning, I would think, "shouldn't this thing be shifting right about....oh...there it goes". I would categorize the shifting schema as a dramatic change...for the good. No more screaming engine in the mountains.
3. Fuel mileage was, maybe 2-3 tenths of a gallon better. More travel will help with less mountains in the way.
__________________
2008 Daybreak 3578 on a Ford F53 V10 228" WB 20.5K Lb Chassis
Four-Down towing a 2008 Ford Escape
Kathy_MD is offline   Reply With Quote
Old 10-06-2011, 06:48 PM   #10
Senior Member
 
Join Date: Dec 2000
Location: Florida
Posts: 125
My 2011 36' Bounder on 2010 F53 chassis also seems to wind out before shifting, sometimes up to 3500 RPM before a shift. I'm not overloaded as I even noticed it on the test drive when it was empty. If I let up on the pedal it seems to help it shift. Is this normal or should I go to Ford?
__________________
2017 Holiday Rambler Vacationer 36H
2014 Honda CR-V w/blue ox
Full timing, east coast
Fla2RI is offline   Reply With Quote
Old 10-06-2011, 07:20 PM   #11
Senior Member
 
Join Date: Jan 2011
Location: Debary Fl
Posts: 464
I had a 1999 M/H with a V10 that I bought sight unseen. On the 300 mile trip home I thought it was turning to many RPS before shifting. I am a manager for a 400 GM vehicle fleet, and not up to speed on ford V10's. So a call went to a friend of mine who is a long time ford truck service manager and had him come drive it, all was fine. the V10 is 6.8L displacement with 10 cyls, by compairson a GM 8.1L has 8 cyls so a much bigger bore and makes it's power at a lower RPM. The V10 with the smaller bore make it's peak power at a higher RPM. I know the guy that bought the coach from me, and at 95K it's still screaming with no problems. They do sound like they are coming apart though.
__________________
Bruce Linda and Zoey
1999 ForeTravel U295
012 orange Jeep Wrangler
bbeane is offline   Reply With Quote
Old 10-06-2011, 09:01 PM   #12
Registered User


 
Monaco Owners Club
Join Date: May 2009
Posts: 3,198
Again, I call part throttle upshifts at 3500 to 4000 rpm just not required. A "chip" will fix it. Just cause it's the way Ford built it don't make it right.
__________________

__________________
JimM68 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
2009 Ford F53 Chassis - RVIA Exposition Report, Louisville, KY DriVer Ford Motorhome Chassis Forum 4 12-04-2008 09:06 PM
Ford SuperDuty Engine Woes ChiefJohn Trailer Towing and Tow Vehicles Discussion 14 03-01-2007 04:25 PM
Shift Cable F53, 1998 Pace Arrow Fleetwood edwardfinley MH-General Discussions & Problems 4 11-02-2006 12:35 AM

» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 07:23 PM.


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