Jayco RV Owners Forum
 


Reply
 
Thread Tools Display Modes
 
Old 04-30-2013, 08:49 PM   #1
Junior Member
 
Join Date: Mar 2013
Posts: 6
The magic O/D off buttom

Following my experience with the transmission overheating (previous thread: Transmission oil all over the place) I bought a scan gauge 2 and went out on another trip.

Had to travel about 4 miles in traffic to get out of the city, such that I had tranny temps of 195F by the time I hit the highway. At highway speeds things did not get much better with the occasional 220 on some relatively low grade inclines. Twenty minutes up the road I pull off on to a 2 lane road, to be slowed down by a truck travelling 35mph. Temps got up to 225 and stayed there. Thought about pulling over, and then remembered the over-drive off button. Never looked back. Temps fell to 180 and only briefly say 200 on a couple of hills.

The trip back was even better. Stuck to the rule of 50mph or lower keep O/D off, over 50mph turned it on. Did not see the temperature rise above 188.


Going out again this weekend to see if I can maintain these temperatures on a different trip.

will keep you posted!!
__________________

NaethanE is offline   Reply With Quote
Old 04-30-2013, 08:58 PM   #2
Member
 
Join Date: Feb 2012
Location: Southern NY
Posts: 77
What's your tow vehicle??
__________________

__________________
Dan in NY

2016 Jayco x213
2012 Toyota Tundra
Mainenebula is offline   Reply With Quote
Old 04-30-2013, 11:56 PM   #3
Senior Member
 
Join Date: Dec 2010
Location: North Idaho/Arizona
Posts: 5,303
You may find that towing your trailer in OD is not recommended by the manufacturer When you are in OD the engine rpm's drop and the transmission may not produce enough line pressure to keep the bands tight and the tranny will slip and generate heat. Check the owners manuel.
clutch is offline   Reply With Quote
Old 05-01-2013, 02:12 AM   #4
Member
 
imaynard's Avatar
 
Join Date: Mar 2012
Location: Houma, LA
Posts: 83
Quote:
Originally Posted by clutch View Post
You may find that towing your trailer in OD is not recommended by the manufacturer When you are in OD the engine rpm's drop and the transmission may not produce enough line pressure to keep the bands tight and the tranny will slip and generate heat. Check the owners manuel.
X2

If your TV does not have "Tow/Haul" mode, I would not suggest towing in O/D at any speed. A few more gallons of fuel per trip is cheaper than a transmission overhaul.
__________________
2013 Eagle Premier 365 BHS
2012 F-250 FX4 Lariat 6.7 Powerstroke Turbo Diesel
5500# Firestone Airbags
imaynard is offline   Reply With Quote
Old 05-01-2013, 06:03 AM   #5
Senior Member
 
Threebutchers's Avatar
 
Join Date: Mar 2013
Location: Planet Earth
Posts: 6,818
Turning off the overdrive on an automatic transmission vehicle serves to increase the engine's / transmissions torque and efficiency when you are climbing steep hills or towing. Your engine will run cooler and like it better, too.

I bet you have Ford.....
Threebutchers is offline   Reply With Quote
Old 05-01-2013, 10:32 AM   #6
Senior Member
 
Join Date: Jun 2010
Location: South Central Ohio
Posts: 216
Quote:
Originally Posted by Threebutchers View Post
Turning off the overdrive on an automatic transmission vehicle serves to increase the engine's / transmissions torque and efficiency when you are climbing steep hills or towing. Your engine will run cooler and like it better, too.

I bet you have Ford.....
In the other thread about the transmission fluid he mentions it is a Ford Exploder...Explorer.
__________________
Jim
1999 Silverado 1500 ECSB 4x4 5.3/3.73s
2009 Jayco 32BHDS
jwstewar is offline   Reply With Quote
Old 05-01-2013, 10:51 AM   #7
Senior Member
 
Threebutchers's Avatar
 
Join Date: Mar 2013
Location: Planet Earth
Posts: 6,818
Quote:
Originally Posted by jwstewar View Post
In the other thread about the transmission fluid he mentions it is a Ford Exploder...Explorer.
Yes - I had a good friend who had a Ford-wheel-drive-exploder....got him some new tires just in time. He had the "Over-Dose" button for his tranny, too :hihi:
Threebutchers is offline   Reply With Quote
Old 05-01-2013, 09:30 PM   #8
Junior Member
 
Join Date: Mar 2013
Posts: 6
yes Its a Ford Explorer.

Manual says that this should be used to "avoid excessive shifting" does not explicitly mention it in the towing section (but it should!!)

From now on over drive off whilst towing will be my mantra to all RVers
NaethanE is offline   Reply With Quote
Old 05-01-2013, 09:39 PM   #9
Senior Member
 
Threebutchers's Avatar
 
Join Date: Mar 2013
Location: Planet Earth
Posts: 6,818
Still good to have the tranny temp gauge at your disposal.....I only have an IDIOT light to rely on

Happy towing.....
Threebutchers is offline   Reply With Quote
Old 05-01-2013, 09:40 PM   #10
Senior Member
 
Join Date: Dec 2010
Location: North Idaho/Arizona
Posts: 5,303
Quote:
Originally Posted by NaethanE View Post
yes Its a Ford Explorer.

Manual says that this should be used to "avoid excessive shifting" does not explicitly mention it in the towing section (but it should!!)

From now on over drive off whilst towing will be my mantra to all RVers

Good choice, your transmission will thank you. (and your wallet)
__________________

clutch is offline   Reply With Quote
Reply

Thread Tools
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


» Virginia State Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -6. The time now is 05:01 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 2002-2016 Social Knowledge, LLC All Rights Reserved.