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 > Diesel Discussion

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 05-10-2005, 06:23 AM
Coming back from burnout
 
Join Date: Jun 1999
Location: in the Pacific Northwest
Posts: 2,274
Automatic Transmission Failure--any remedy besides new Trans?

I tested my car yesterday even though the burned out instrument cluster was missing . Since it provides information mostly I carefully cut the wires and killed the circuit at the fuse box.
During the engine replacement I drained the engine, torque converter, and cooler. I replaced the filter. I put Dexron Mercon III ATF back in, 7 quarts at least.

I put the car in gear. It was a little slow moving but I guess it took time for the torque converter to fill.

I drove the car for 30 minutes. It ran fine and the transmission shifted smoothly. I came home and parked it

30 minute s later, I restarted the engine and shifted and the car wouldnt even move. I think the tranny is shot. I checked the shifter linkage and its fine. Why would a tranny fail like this? I would think it should have failed immediately upon my driving the car...

Finally what does the big electrical plug on the driver side of the trans do? I think it has ...like 5 pins...the plastic snap lock isnt there so it may have come loose..


Last edited by Carrameow; 05-10-2005 at 06:32 AM.
Reply With Quote
  #2  
Old 05-10-2005, 06:47 AM
Johnhef's Avatar
Senior Member
 
Join Date: Feb 2005
Location: Frederick, Md
Posts: 4,540
You sure do have some kind of luck.

That plug is the neutral safety switch. i.e. keeps you from starting it in gear and also is what turns on your backup lights.

Does it feel like nothing but neutral when you attempt to put it in gear?
__________________


1980 500SE/AMG Euro
1981 500SEL Euro
1982 380SEL
1983 300TD
1983 500SEC/AMG Euro
1984 500SEC
1984 300TD Euro
1986 190E 2.3-16
1986 190E 2.3
1987 300D
1997 C36 AMG
2003 C320T 4matic

past: 1969 280SE 4.5 | 1978 240D | 1978 300D | 1981 300SD | 1981 300SD | 1982 300CD | 1983 300CD | 1983 300SD | 1983 380SEC | 1984 300D | 1984 300D | 1984 300TD | 1984 500SEL | 1984 300SD | 1985 300D | 1986 300E | 1986 560SEL | 1986 560SEL/Carat | 1987 560SEC | 1991 300D 2.5 | 2006 R350
Reply With Quote
  #3  
Old 05-10-2005, 08:17 AM
Registered User
 
Join Date: Dec 2002
Location: RI shore
Posts: 2,937
while disconnecting the transmission cooler lines you run anextreme risk of dislodging any metal chips stuck in the lines from a previous failure. This is probably how I ruined a pretty good rebuilt transmission several years back (which is the main reason I bought my parts car). When I rebuilt my current engine, I blew through the cooler lines with compressed air. Then I looked inside. There was a semi-solid plug of chips that allowed air to pass I went nuts cleaning those metal tubes, replaced the flex lines, flushed the radiator cooler as best I could and installed a screened bolt in the transmission return line.

I sure hope it's something simple with yours, maybe a linkage issue?
__________________
'82 300SD - 361K mi - "Blue"

"Good judgement comes from experience. Experience comes from bad judgement."

listen, look, .........and duck.
Reply With Quote
  #4  
Old 05-10-2005, 08:37 AM
Coming back from burnout
 
Join Date: Jun 1999
Location: in the Pacific Northwest
Posts: 2,274
It feels like nothing but neutral...

What are the chances its just the Plug come loose? Thats what a coworker also said.
Well I do have some lousy luck and its okay, this is an old car. But I do love it and I like fixing things~~
Reply With Quote
  #5  
Old 05-10-2005, 11:10 AM
TonyFromWestOz's Avatar
"The Wizard of Oz"
 
Join Date: Jan 2004
Location: Perth, Western Australia
Posts: 834
It must be something simple. Heck you drove it five minutes before.
WIth the car on stands or ramps, have someone shift from P - R - D - S - L a few times, while you watch from underneath. Check the bolt that attaches the shifter lever to the box.
A loose plug will prevent starting & reverse lights from operating. It cannot prevent shifting.
Please keep us informed.
__________________
Tony from West Oz.
Fatmobile 3 84 300D 295kkm Silver grey/Blue int. 2 tank WVO - Recipient of TurboDesel engine.
Josephine '82 300D 390kkm White/Palamino int.
Elizabeth '81 280E, sporting a '79 300D engine.
Lucille '87 W124 300D non-turbo 6 cylinder OM603, Pearl Grey with light grey interior


Various parts cars including 280E, 230C & 300D in various states of disassembly.
Reply With Quote
  #6  
Old 05-10-2005, 11:16 AM
Registered User
 
Join Date: Jan 2000
Location: PA
Posts: 5,440
Carrameow,

Have yhou checked the transmission fluid level?

P E H
Reply With Quote
  #7  
Old 05-11-2005, 08:38 AM
Coming back from burnout
 
Join Date: Jun 1999
Location: in the Pacific Northwest
Posts: 2,274
Does anyone know exactly what the 85 300D AT Fluid Capacity is?

My dipstick shows enough, but presently I have 7 quarts of ATF and 1 quart of TRANS-X in their....
Reply With Quote
  #8  
Old 05-11-2005, 09:22 AM
tomm9298's Avatar
Diesel and WVO ..
 
Join Date: Sep 2004
Location: South Carolina NO RUST
Posts: 502
Thumbs up Atf

Including the torque conv, it will hold 8 quarts. You got it right !!!
__________________
1984 300D Turbo Sedan (Hilda) 272,115 miles.....
Anthracite Gray/Palamino Leather, I am 3rd owner

2001 Dodge Stratus (Silver) (wifes) 55814 miles...

1982 280TE Wagon Astral Silver Metallic/
Anthracite Velour
260,512 miles (Eva)

1969 230 Sedan Olive Green/Black MBTex
4 Speed Manual
84,213 miles ????
Haus Frau


2004 Boreem Ninja Pocket Bike
Highly Modified 49cc (Ling Ling)

Einigkeit und Recht und Freiheit
Reply With Quote
  #9  
Old 05-11-2005, 07:51 PM
Johnhef's Avatar
Senior Member
 
Join Date: Feb 2005
Location: Frederick, Md
Posts: 4,540
get the back end up in the air, engine off, put in neutral, spin the driveshaft. put it in drive and do the same. report back with results
__________________


1980 500SE/AMG Euro
1981 500SEL Euro
1982 380SEL
1983 300TD
1983 500SEC/AMG Euro
1984 500SEC
1984 300TD Euro
1986 190E 2.3-16
1986 190E 2.3
1987 300D
1997 C36 AMG
2003 C320T 4matic

past: 1969 280SE 4.5 | 1978 240D | 1978 300D | 1981 300SD | 1981 300SD | 1982 300CD | 1983 300CD | 1983 300SD | 1983 380SEC | 1984 300D | 1984 300D | 1984 300TD | 1984 500SEL | 1984 300SD | 1985 300D | 1986 300E | 1986 560SEL | 1986 560SEL/Carat | 1987 560SEC | 1991 300D 2.5 | 2006 R350
Reply With Quote
  #10  
Old 05-12-2005, 09:19 AM
Coming back from burnout
 
Join Date: Jun 1999
Location: in the Pacific Northwest
Posts: 2,274
I have it on good advice[U]...that the pump failed[/U].

I have it on good advice...that the pump failed.
I dropped the pan, the filter had some grit in it, but unless there was some unsual blockage I could not see, it was still a viable fluid passing filter.

The Last Test I will do is disconnect the oil cooler lines and start the engine in N and see if fluid is being pumped. There may be a chance the oil cooler is clogged.
What a shame, the engine on this thing sounds like a Swiss Watch. I go outside once in a while to start it and just listen to it.

I am still in consternation that the pump failed, I mean Mercedes power steering pumps, vacuum pumps, AC compressors last for DEcades!!!

Last edited by Carrameow; 05-12-2005 at 09:42 AM.
Reply With Quote
  #11  
Old 05-12-2005, 10:34 AM
Registered User
 
Join Date: Sep 2001
Location: central Texas
Posts: 17,281
That sure sounds reasonable... if you don't have hyd pressure in the transmission the hydraulic clamps which operate the clutches can't operate....
When you get through with this car it will last decades with no further work...

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Balance problems with Automatic transmission Chris DK Tech Help 5 11-03-2004 01:00 AM
ML 320 Automatic Trans fluid B52 Tech Help 2 09-24-2004 08:46 PM
Automatic Transmission Story - 350sdl rodsob Diesel Discussion 5 10-24-2003 01:31 AM
Automatic Transmission Fluid E230 BlackMB77B704XM Tech Help 0 09-23-2003 10:32 PM
Leaking Automatic Transmission Cooler - Help Wanted R Leo Diesel Discussion 7 09-09-2003 06:11 PM



All times are GMT -4. The time now is 01:16 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2024 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page