Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help




Go Back   PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Tech Help

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 02-05-2006, 06:35 PM
Senior Member
 
Join Date: Mar 2001
Location: Accokeek, MD
Posts: 683
Overfilled Transmission

Please excuse this transgression. My son just bought a used automatic Nissan truck. When driving it home on the highway the trans would not shift into highest gear. I noticed that the fluid level is very high on the dipstick... a good two inches too high.
Could too much fluid cause the transmission not to shift into high gear?

Many thanks to anyone who may have some knowledge about the situation.
__________________
Earl



1993 190E 2.3
2000 Toyota 4x4 Tundra
Reply With Quote
  #2  
Old 02-05-2006, 06:37 PM
Ali Al-Chalabi's Avatar
Senior Member
 
Join Date: Nov 2000
Location: Knoxville, TN
Posts: 1,837
Too much fluid can cause problems. It can result in the fluid getting foamed and result in the pump pumping air instead of fluid. I would correct the fluid level then see what happens.
__________________
Ali Al-Chalabi

2001 CLK55
1999 Dodge Ram 2500 Cummins Diesel
2002 Harley-Davidson Fatboy
Merlin Extralight w/ Campy Record
Reply With Quote
  #3  
Old 02-05-2006, 06:45 PM
Registered User
 
Join Date: Sep 2003
Location: Suburban Washington DC
Posts: 847
Or maybe it leaks so much the previous owner filled it high so you can make it home without running it empty?
Reply With Quote
  #4  
Old 02-05-2006, 06:48 PM
C32AMG's Avatar
Registered User
 
Join Date: Mar 2004
Location: new york/orange county
Posts: 639
No over fill is not the problem, Nissan have an over drive bottom on the shifter handle, make sure
Itís on. What year and model.
Reply With Quote
  #5  
Old 02-05-2006, 06:55 PM
Senior Member
 
Join Date: Mar 2001
Location: Accokeek, MD
Posts: 683
It is a 1995 Se V-6 long bed with extended cab. I asked him about the overdrive and he said he was using it. I have not tested the vehicle myself.

Aslo thanks for that bit of info on the bubbles.

__________________
Earl



1993 190E 2.3
2000 Toyota 4x4 Tundra
Reply With Quote
  #6  
Old 02-05-2006, 07:09 PM
C32AMG's Avatar
Registered User
 
Join Date: Mar 2004
Location: new york/orange county
Posts: 639
Nissans have a cold over drive shift strategy, inhibits OD until the water temperature start to
Get warm. If you drive it, get hot and look at the temperature gauge if it does not read operating
Temp. The engine coolant temp switch is bad.
Reply With Quote
  #7  
Old 02-05-2006, 07:11 PM
Senior Member
 
Join Date: Mar 2001
Location: Accokeek, MD
Posts: 683
As info trickles in... Evidently the no shift into high occurs when trans is hot. Sounds like it may be a foaming problem.
__________________
Earl



1993 190E 2.3
2000 Toyota 4x4 Tundra
Reply With Quote
  #8  
Old 02-05-2006, 08:03 PM
Senior Member
 
Join Date: Mar 2001
Location: Accokeek, MD
Posts: 683
Thanks C32,
We must have posted simutaniously. I did not see your info about the temperature guage and sending unit... Wow, Makes a lot of sense. Former owner probably kept adding fluid hoping to make problem go away.

Sending unit might also be disconnected. Any idea where the unit is located?... on engine block or radiator?

You are a gold mine of information. Many many many thanks.
__________________
Earl



1993 190E 2.3
2000 Toyota 4x4 Tundra

Last edited by ejsharp; 02-05-2006 at 08:09 PM.
Reply With Quote
  #9  
Old 02-05-2006, 08:04 PM
C32AMG's Avatar
Registered User
 
Join Date: Mar 2004
Location: new york/orange county
Posts: 639
Over filling a transmission will cause foaming = Aerated fluid will cause oil pump cavitation,
This causes transmission slippage. Foaming will not cause a transmission to inhibit one shift
And not the others. Now if you pour a box of tide into to the transmission i may agree with you.
Reply With Quote
  #10  
Old 02-05-2006, 08:08 PM
C32AMG's Avatar
Registered User
 
Join Date: Mar 2004
Location: new york/orange county
Posts: 639
Thank you, I did not see your last post, Mercedes shop is a gold mine of information, and I am just one worker.
Reply With Quote
  #11  
Old 02-05-2006, 08:20 PM
Senior Member
 
Join Date: Mar 2001
Location: Accokeek, MD
Posts: 683
C32... Do you know where the sending unit is located? Block or Raditor?
__________________
Earl



1993 190E 2.3
2000 Toyota 4x4 Tundra
Reply With Quote
  #12  
Old 02-05-2006, 09:01 PM
C32AMG's Avatar
Registered User
 
Join Date: Mar 2004
Location: new york/orange county
Posts: 639
Itís on the block by the upper radiator hose. By a new one
And use it to identify the old one.
Reply With Quote
Reply

Bookmarks

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -4. The time now is 05:24 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page