Reply
 
Thread Tools Search this Thread Display Modes
 
Old 07-24-2003, 01:21 PM   #1
Rivet Master
 
Kistler's Avatar
 
2002 25' Classic
Oro Valley , Arizona
Join Date: Oct 2002
Posts: 835
Transmission "idiot" light ?

My Expedition has an "idiot" light for the trans overheating. Is this good enough for notification to take "defensive action" to cool the trans oil down???

Some people have trans oil temp gauges. I would like to avoid this--I can't do it myself-- have to pay some mechanic and where do I "hang the thing" in/on the dashboard ?

I don't tow in OD by the way.
__________________

__________________
Kistler & Brenda

2002 Classic 25'
2003 Expedition EB 5.4L, AWD, AdvanceTrac Class IV hitch pkg. Reese dual cam/Prodigy
Kistler is offline   Reply With Quote
Old 07-24-2003, 02:22 PM   #2
Just a member
 
thenewkid64's Avatar
 
1978 28' Argosy 28
Tampa Bay , Florida
Join Date: Mar 2002
Posts: 4,539
Images: 21
Send a message via AIM to thenewkid64 Send a message via Yahoo to thenewkid64 Send a message via Skype™ to thenewkid64
Normally by the time the idiot light lights it is too late, the damage is done. The only way to know if it is accurate is to find out what parameters will cause it to light, and therfore if the damage is done.

As I remember you have a newer tow vehicle. I would be willing to bet the idiot light is there as an add on to the system computer. The dealer can download it to see if you have abused the transmission to ascertain warranty coverage should something go wrong.

Many of the aftermarket gauge manufacturers make a gauge pod that mounts on the A pillar of the windshield. This would allow you to have a trans temp gauge and others. Many of the aftermarket truck sites sell the whole thing as a 1,2, or 3 gauge kit with senders and instructions.


Look here to see what I mean:
http://www.streetbeatcustoms.com/int...auge-pods.html

My gut would say if you are worried about it get a gauge, you may be able to tow in overdrive if the temps stay in the normal range and make back the cost of the kit and installation!
__________________

__________________
Brett G
WBCCI #5501 AIR # 49
-------------------------
1978 Argosy 28 foot Motorhome

Wise men talk because they have something to say; fools, because they have to say something. -- Plato


thenewkid64 is offline   Reply With Quote
Old 07-24-2003, 02:29 PM   #3
Aluminut
 
Silvertwinkie's Avatar
 
2004 25' Safari
. , Illinois
Join Date: Feb 2003
Posts: 10,334
I found on the car forums that adding a trans temp is a good way to go, however, placement of the sending unit is key. There are several places on the trans where a sender can go, each would have different temps.

Eric
__________________
Computers manufactured by companies such as IBM, Compaq and millions of others are by far the most popular with about 70 million machines in use worldwide. Macintosh fans note that cockroaches are far more numerous than humans and that numbers alone do not denote a higher life form. -NY Times 11/91
Silvertwinkie is offline   Reply With Quote
Old 07-24-2003, 04:57 PM   #4
Rivet Master
 
Kistler's Avatar
 
2002 25' Classic
Oro Valley , Arizona
Join Date: Oct 2002
Posts: 835
Thanks everybody! I was afraid it was too late when the light went on ..... I guess I'll go to the local "generic" garage and inquire. I believe someone advised on some post that the sender be installed on the outflow of the trans on the way to the radiator--that being the hotest fluid.

Kistler
__________________
Kistler is offline   Reply With Quote
Old 07-24-2003, 07:08 PM   #5
Retired Moderator
 
john hd's Avatar
 
1992 29' Excella
madison , Wisconsin
Join Date: Aug 2002
Posts: 4,644
Images: 40
kistler

can't speak much on fords. don't know them that well.

on my chevy silverado it has a two stage idiot light and a temp gauge in the dash.

if you abuse the tranny on a chevy and ignore the gauge, the idiot light sez "trans hot" if you still ignore it and keep going it sez "trans hot idle engine".

if you keep going after that, the computer will alternately fire evey other spark plug and slow you down....protecting the tranny from total destruction.

perhaps you ford does the same thing.

maybe brushing up on the manual will tell you more.

a gauge put any where in the system would be better than nothing. at least you could detect an overall trend in rising temps.

john
__________________
john hd is offline   Reply With Quote
Old 07-24-2003, 07:11 PM   #6
Rivet Master
 
59toaster's Avatar
 
1959 22' Caravanner
Atlanta , Georgia
Join Date: Feb 2003
Posts: 2,197
Images: 22
Pep boys where they have the transmission coolers are they should also have gages. These are branded by Hayden.

I have run them on my last three trucks. THe one in my Burb Tow rig has a sender in both the oil pan and the transmission. (well once I install the transmission one in the next couple weeks). I run the biggest Stackplate cooler Pepboys sells. Had the same one on the last three trucks and usualy run about 150-160 degrees in the transmission. Now that's measuring the fluid in the pan. Personnally I think that's the best location becuase it's after it has been trun through the transmission.

With your vehcile you may have a transmission drain plug. I lucked out and the sender that comes with the kit fit the drain plug on my engine. THe gage is a common size and will fit those gage pods listed. I mounted mine under the dash but the shape of my dash it works out good in that location.
__________________
1959 22' Caravanner
1988 R20 454 Suburban.
Atlanta, GA
59toaster is offline   Reply With Quote
Old 07-24-2003, 07:13 PM   #7
Rivet Master
 
59toaster's Avatar
 
1959 22' Caravanner
Atlanta , Georgia
Join Date: Feb 2003
Posts: 2,197
Images: 22
BTW...200degrees is where you have to start getting concerned. That's hot enough to start baking the seals. 300 and the life expecancy of the transmisision is rated in hours.
__________________
1959 22' Caravanner
1988 R20 454 Suburban.
Atlanta, GA
59toaster is offline   Reply With Quote
Old 07-24-2003, 08:28 PM   #8
4 Rivet Member
 
Join Date: Aug 2002
Posts: 345
The guage pods come in one or two pods. I can see the definite need for the tranny temp guage. Is there a real need for the oil temp guage or can one do well watching just the tranny temp?

The above ref is just for the pod (holder). Is there a real difference in the quality of guages from the supoliers? ie who would be best to order from?

Steve
__________________
Sav'h Steve is offline   Reply With Quote
Old 03-22-2004, 09:10 AM   #9
Rivet Master
 
TomW's Avatar
 
1967 26' Overlander
Huntsville , Alabama
Join Date: Dec 2003
Posts: 2,918
Images: 2
Hottest place would be best

Quote:
Originally posted by Silvertwinkie
I found on the car forums that adding a trans temp is a good way to go, however, placement of the sending unit is key. There are several places on the trans where a sender can go, each would have different temps.
After completing my first trip with my Overlander, I feel inclined to add a transmission gauge to my '84 C20 Suburban with a TH400 transmission. It seems to me that I should only worry about the temperature at the hottest location which, short of disassembling the tranny to mount an internal probe, should occur at the cooling line going to the radiator. Anyone disagree?

There is a small, empty gauge hole on my dashboard where, in 1984, one could have probably had an OEM gauge installed. Plans are to look for an aftermarket gauge to fit this hole. I would be comfortable with a VDO gauge, if it fits the hole. Anyone care to recommend/warn against another brand of gauge?

Thanks,
Tom
__________________
TomW is offline   Reply With Quote
Old 03-22-2004, 10:04 AM   #10
Rivet Master
 
Join Date: Dec 2002
Posts: 1,313
Images: 4
Kistler, you said "I believe someone advised on some post that the sender be installed on the outflow of the trans on the way to the radiator--that being the hotest fluid." I plead guilty, and the discussion is here :-
tranny temp. gauges
IMHO, once the fluid has returned to the pan, it has mixed with the cooler fluid in the pan. On the output line, you can see what the temperature is as the fluid emerges from the tranny, which is what is important. Backing into a camping spot can send that temperature dangerously high, and very quickly. Nick.
__________________
Nick Crowhurst, Excella 25 1988, Dodge Ram 2500 Cummins Diesel. England in summer, USA in winter.
"The price of freedom is eternal maintenance."
nickcrowhurst is offline   Reply With Quote
Old 03-22-2004, 10:24 AM   #11
Rivet Master
 
59toaster's Avatar
 
1959 22' Caravanner
Atlanta , Georgia
Join Date: Feb 2003
Posts: 2,197
Images: 22
Re: Hottest place would be best

Quote:
Originally posted by tcwilliams

After completing my first trip with my Overlander, I feel inclined to add a transmission gauge to my '84 C20 Suburban with a TH400 transmission. It seems to me that I should only worry about the temperature at the hottest location which, short of disassembling the tranny to mount an internal probe, should occur at the cooling line going to the radiator. Anyone disagree?

There is a small, empty gauge hole on my dashboard where, in 1984, one could have probably had an OEM gauge installed. Plans are to look for an aftermarket gauge to fit this hole. I would be comfortable with a VDO gauge, if it fits the hole. Anyone care to recommend/warn against another brand of gauge?

Thanks,
Tom
Line out is a good point for temp. You can get real fancy and put a second probe into the line back from the cooler and see how much temp drop you have.
I put mine into the pan. It works as a drain so next service will not be a bath again. LOL.

Tranny temp gages were never offered on the 73-91 Suburbans.
Depending on the year and options is what governed if that empty spot was filled. On my 75 Jimmy it has a clock there. On my 79 Blazer it had factory tach so the gas gage was in that spot. My 88 it's blank. THought about putting my tranny temp there but have it near the gas peddle on the bottom edge of the dash. I can get a picture if you like. I also have a small tach there.

A-Piller pod for these trucks are not currently available.

Some of the guys at www.67-72chevytrucks.com in the 73-87 forum (I'm Grim there) got with a gage pod manufacture to get them to make one for these body trucks. Looks like it may happen. I'm thinking about getting a tripple and put my Tranny ,tach and a Air fuel meter there.
__________________
1959 22' Caravanner
1988 R20 454 Suburban.
Atlanta, GA
59toaster is offline   Reply With Quote
Old 03-22-2004, 10:25 AM   #12
Rivet Master
 
59toaster's Avatar
 
1959 22' Caravanner
Atlanta , Georgia
Join Date: Feb 2003
Posts: 2,197
Images: 22
Ohh I have a second sender on my temp gage and it's into the oil pan drain hole so I can see ening oil temp as well.
__________________

__________________
1959 22' Caravanner
1988 R20 454 Suburban.
Atlanta, GA
59toaster 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
Dent and replacing light fixtures imeynstein Lights - Interior & Exterior 5 03-30-2004 02:56 PM
Light Fixture Covers (plastic) ke4lkq Electrical - Systems, Generators, Batteries & Solar 4 01-16-2004 06:28 PM
help me see the light wheel interested Our Community 1 11-17-2003 08:34 AM
Night light Pahaska Our Community 5 11-12-2003 08:15 PM
Tail Light on '62 Overlander Deppdog Electrical - Systems, Generators, Batteries & Solar 1 08-16-2003 09:21 AM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 09:54 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.