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#535779 - 09/08/04 10:30 PM trans fluid black as oil
b0bd0d Offline

Registered: 08/21/04
Posts: 99
Man, am I glad I changed my fuild. Jesus! What a difference. Can barely feel the shifts now. This trans aint gonna die on me any time soon is it? Fix that oil leak next. thanks for the excellent tech articles by the way.

#535780 - 09/08/04 10:36 PM Re: trans fluid black as oil

glad to hear it:)

#535781 - 09/08/04 10:48 PM Re: trans fluid black as oil
2vmodular Offline


Registered: 04/11/01
Posts: 6289
Loc: New England
yep, it likely will. black fluid indicates component failure.


This trans aint gonna die on me any time soon is it?

Visit my website for info on adding good stuff to your crownvic:

#535782 - 09/09/04 01:44 AM Re: trans fluid black as oil
AODE Offline
Over the Hill

Registered: 07/27/02
Posts: 2551
Loc: Ohio
First of all, any BLACK FLUID is not good.

I hope you changed the trans filter as well.
2000 CV
5.4 LIGHTNING SWAP +4 psi pulley
350 HP
450 Lbs Torque

#535783 - 09/09/04 02:37 AM Re: trans fluid black as oil
Amsoil_Dealer Offline

Registered: 01/22/03
Posts: 556
Loc: Clearwater, FL

This trans aint gonna die on me any time soon is it?

It might. New ATF is a tremendous cleanser. Black ATF usually means there was either fluid failure or severe clutch wear since the fluid was previously changed. Regardles of what caused the previous fluid to go black, there is undoubtedly residual dirt in the system that the new ATF is going to clean out. Such cleansing can cause tranny failure if a "chunk" of debris is disloged and blocks the oil flow.

Keep a close eye on the new fluid. If it starts getting dark, change it again in 1000 miles, and maybe again 1000 miles after that. I know this isn't cheap but two or three flushes is much cheaper than a rebuild.

GooD luck,

2002 CV LX Sport - Bone stock, for now ;-) except for Amsoil lubes of course. 10W30 ATM engine oil, Amsoil ATF in the tranny, and Series 2000 75W90 gear lube in the diff. Kuhmo Ecsta KH 11 tires. Ford Motorsport Dual Mode Mufflers. 15.87 1/4 mile ET.

#535784 - 09/09/04 10:09 AM Re: trans fluid black as oil
RF_Overlord Online   content


Registered: 12/14/02
Posts: 7425
Loc: MA
^^^what Don said^^^

Fluid that's as dark as you say is either very burnt, or it's contaminated. If it's burnt, then something overheated it, either an internal issue or your driving habits: i.e. trailer towing through the mountains, doing lots of brake-stands, etc. If you're lucky, a couple of changes will clear out the burnt fluid and you'll be OK.

If it's contaminated, then something in your trans has ALREADY failed (clutch-pack friction material, most likely) and total failure is imminent...
'03 Mercury Marauder (The Blackbird)
Trilogy Motorsports supercharged #61
Too many mods to list / Driveway Queen

'04 Grand Marquis LS Limited Edition (Spruce Green)
Daily Driver (Thanks, Adam!)

'00 Grand Marquis GS (Silver)
Rotted frame and broken transmission crossmember
Being resurrected...slowly.

#535785 - 09/09/04 01:38 PM Re: trans fluid black as oil
b0bd0d Offline

Registered: 08/21/04
Posts: 99
Oh, it was burnt. You could smell it. I had to move the bucket outside becuase the smell was giving me a headache while I was working on it. Both my brothers had the car before I did and they were anything but gentle. And I kinda drive like I stole the damn thing. I don't beat it up, I just drive it hard. Is it too difficult to add a police trans cooler to the line? I saw one in the junkyard yesterday.

#535786 - 09/09/04 04:00 PM Re: trans fluid black as oil
LTDteether Offline
Over the Hill

Registered: 07/19/02
Posts: 4467
Loc: Democratic Rep. of Southpaw
Be cautious about putting a salvaged trans cooler in your car. If the car was junked because the trans went bad, it might be full of crap. Ford has an in-line filter to be installed after trans failure to keep fragments from going back into the trans. You are supposed to flow test the cooler and lines before hooking them back up after a trans overhaul.
'99 GM GS HPP.
I may not be a rocket scientist, but I *am* a scientist.

#535787 - 09/09/04 04:53 PM Re: trans fluid black as oil
johnnyiroc Offline
Over the Hill

Registered: 10/14/02
Posts: 4064
run some cleaner thru the lines, before installing the cooler, or in case of tranny replacement, you must clean the whole line system.
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