Auto trans rpms drop when put in reverse - Ford Powerstroke Diesel Forum
 
LinkBack Thread Tools Display Modes
post #1 of 10 Old 11-15-2010, 10:51 AM Thread Starter
Compression Ignition Addict
 
Shadowfax's Avatar
 
Join Date: Oct 2010
Location: Monroe GA
Posts: 404
Thanks: 2
Thanked 7 Times in 7 Posts
Mentioned: 0 Post(s)
Quoted: 8 Post(s)
Feedback Score: 1 reviews
Auto trans rpms drop when put in reverse

A little background info, I just bought this 02, it supposedly has a new trans with some extra things done to it. The trans was working fine, it had an aftermarket trans cooler mounted but i thought it looked bad with the factory one sitting there with the hoses hanging off.

I removed the aftermarket cooler and reconnectrd the factory one. I also mounted and connected an in line filter, then added 2 qts bc it looked low.

The bad part was the fluid that drained from the lines when I was working. It was gross, black looking.

The problem
Before I did any work the other night my od light came on for no reason a couple times. This morning when I went to back in my spot I shifted to reverse and the rpms dropped to about 400 and then went back to normal. I shifted it back and fourth a couple times and it dropped every time in reverse. My od light also flashed for a minute. I also noticed that the filter and all the lines were cold but the pan was hot.

So far it has not given me any problem on the road hopefully I'm not ginxing myself.

What could the problem be? I have read about the bypass valve but would that cause the reverse and od light issues? The trans temp guage reads normal.

Trans is supposed to have 30k on it so I hope theres no serious problem.
It took forever to type this on my cell phone.

Last edited by Shadowfax; 11-15-2010 at 11:03 AM.
Shadowfax is offline  
Sponsored Links
Advertisement
 
post #2 of 10 Old 11-15-2010, 11:03 AM
Shaking the Bush Boss
 
CHUCK's Avatar
 
Join Date: Feb 2007
Location: Salisbury, NC
Posts: 9,740
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Hope its nothing expensive!

Chuck
CHUCK is offline  
post #3 of 10 Old 11-15-2010, 03:42 PM Thread Starter
Compression Ignition Addict
 
Shadowfax's Avatar
 
Join Date: Oct 2010
Location: Monroe GA
Posts: 404
Thanks: 2
Thanked 7 Times in 7 Posts
Mentioned: 0 Post(s)
Quoted: 8 Post(s)
Feedback Score: 1 reviews
after work today I tested every hose connection starting with the trans return. Needless to say I lost a lot of trans fluid when I found the spot. Apparently trans fluid was not passing through the filter I installed. I tried a new filter and it still didn't work so I just bypassed the filter for now.

The rpms havent dropped since shifting into reverse since this morning, and it still drives and shifts perfectly.



After all this I found another weird thing. My od light on the shifter flashes for a split second when I put backwards pressure on the shifter, I can find the sweet spot and it will stay on. It does it in every gear except neutral and 1. The light sometimes will come on when I pull back on the shifter and stay on until it is set in a gear. It has even stayed on then too but if I flick the end of the shifter it will go out.

It is kindof acting like there is a short in the button or something. If the button stays on in a gear it will also go off if I just push the od and usually if I tap the shifter itself.

I don't know about this, it seems to have just started and I haven't noticed anything strange while driving.

I'm going to drop the pan this weekend and change the internal filter and get a bunch of fresh fluid in there. The fluid I have been seeing makes me nervous.

sorry kindof long winded
Shadowfax is offline  
post #4 of 10 Old 11-15-2010, 04:08 PM
Compression Ignition Addict
 
CSIPSD's Avatar
 
Join Date: Oct 2006
Location: Bend, Or
Posts: 6,169
Thanks: 32
Thanked 49 Times in 47 Posts
Mentioned: 1 Post(s)
Quoted: 1 Post(s)
Feedback Score: 0 reviews
Wire harness is shorted... Quite common.

01 F-250 SC PSD,320k,16 Isspro Gauges, AFE-2,CCV Mod,IAH delete,map reg,Modded H2e, 6.0 IC, 230/100 from P.I.S, Studs, 910 springs, Forged rods, Water injection,Hydra chip-No Limit/Gearhead tuning, Swamps HVHF IDM, MBRP 4" dual's, Aero, 6" tip's, 4" Revtek lift, 37/12.5/16.5 MT's
Joe



DYNOPROVEN.COM, PERFORMANCEINJECTIONSYSTEMS.COM and RIFFRAFFDIESEL.COM
CSIPSD is offline  
post #5 of 10 Old 11-15-2010, 04:32 PM Thread Starter
Compression Ignition Addict
 
Shadowfax's Avatar
 
Join Date: Oct 2010
Location: Monroe GA
Posts: 404
Thanks: 2
Thanked 7 Times in 7 Posts
Mentioned: 0 Post(s)
Quoted: 8 Post(s)
Feedback Score: 1 reviews
hmm. I have the steering column out of my 96 bronco, I wonder if the shift levers are the same. I know they look pretty identical.

That would explain alot but it doesn't explain why it was bogging when I put it in reverse. Hopefully that had something to do with the fluid only circulating through the bypass.
Shadowfax is offline  
post #6 of 10 Old 11-15-2010, 08:20 PM
JJR
Compression Ignition Addict
 
Join Date: Nov 2006
Location: Omaha
Posts: 304
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
I would be leary of the factory cooler. They like to plug up. Probably was bypassed for a reason.
JJR is offline  
post #7 of 10 Old 11-16-2010, 03:37 AM Thread Starter
Compression Ignition Addict
 
Shadowfax's Avatar
 
Join Date: Oct 2010
Location: Monroe GA
Posts: 404
Thanks: 2
Thanked 7 Times in 7 Posts
Mentioned: 0 Post(s)
Quoted: 8 Post(s)
Feedback Score: 1 reviews
Yeah I was thinking that too. The one that was added was pretty cheap, I'm going to shop around for a 6.0 cooler.

I noticed that I had the ports mixed up on the filter. I wonder if oil filters are directional and that was what was causing it not to flow.
Shadowfax is offline  
post #8 of 10 Old 11-16-2010, 05:55 AM Thread Starter
Compression Ignition Addict
 
Shadowfax's Avatar
 
Join Date: Oct 2010
Location: Monroe GA
Posts: 404
Thanks: 2
Thanked 7 Times in 7 Posts
Mentioned: 0 Post(s)
Quoted: 8 Post(s)
Feedback Score: 1 reviews
I think my best bet is going to be to drop the pan, clean it and replace the filter and do a full flush. I'm going to get a 6.0 cooler or similar and get rid of the external filter mount.

Then ill mess with the shifter wires.
Shadowfax is offline  
post #9 of 10 Old 11-16-2010, 06:01 AM
Compression Ignition Addict
 
justinlogue5_0's Avatar
 
Join Date: Mar 2010
Location: Westmoreland,Tn
Posts: 2,008
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 1 reviews
Quote:
Originally Posted by Shadowfax View Post
Yeah I was thinking that too. The one that was added was pretty cheap, I'm going to shop around for a 6.0 cooler.

I noticed that I had the ports mixed up on the filter. I wonder if oil filters are directional and that was what was causing it not to flow.
If your a little short on cash you can get a trans cooler from Jegs or Summit that handles 30,000 lbs vehilcles and comes with a built on cooling fan for less than half of what a 6.0 cooler cost. I put one on mine and LOVE it. I did have to make my own brackets to make it work though where I believe the 6.0 one is a direct bolt on.

On a side note, You said you hooked back up the factory one with the hoses just hanging there? Did you flush the cooler first? Probable FULL of road grime.

NAME: Justin
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


A little bit of this and a little bit of that. I want a lot more of this and a lot more of that
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
It never ends!
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
justinlogue5_0 is offline  
post #10 of 10 Old 11-17-2010, 08:26 PM
JJR
Compression Ignition Addict
 
Join Date: Nov 2006
Location: Omaha
Posts: 304
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
I got my 6.0 cooler new from Keystone automotive for about $260. It is great and is the larger 32 row cooler.
JJR is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome