Recent Topics
Rotella 10W40
by jakewells
06/19/18 10:43 AM
Extend WiFi Range at the Laptop?
by clarkflower
06/19/18 10:40 AM
Silicone containing waxes
by mjoekingz28
06/19/18 09:44 AM
Matrix totaled
by circuitsmith
06/19/18 08:32 AM
Door rust problems
by Dave Sherman
06/19/18 07:51 AM
2016 Honda Civic problems
by dbias
06/19/18 07:39 AM
Royal purple 75-140 in a subaru rear
by 91camarosRS
06/19/18 07:32 AM
OCI. With short trips. Nissan 4 liter
by Gawardawg
06/19/18 06:52 AM
Approach Watching on the Beach @ St Maarten ...
by LoneRanger
06/19/18 06:41 AM
Honda Accord Needs Shocks; Front, Back, or Both?
by tc1446
06/19/18 05:50 AM
How much oil does your oil filter hold?
by Snagglefoot
06/19/18 05:44 AM
better day
by mx5miata
06/19/18 05:26 AM
BRAVO to Officer Wheeles......
by Sayjac
06/19/18 05:17 AM
People Watching ....Airport style.
by ZZman
06/19/18 04:24 AM
Subaru's at play...
by OneEyeJack
06/19/18 03:50 AM
Treating a 2003 Jetta
by llmercll
06/19/18 01:41 AM
Brakes not working - brake pedal sinks
by tookien
06/19/18 12:42 AM
Dave thinks I can make it 12--15k
by Marco620
06/19/18 12:26 AM
'05 Impala front wheel "squeal". Cost !
by Lee4212
06/19/18 12:16 AM
One Dollar Per Gallon?
by Y_K
06/18/18 11:53 PM
Newest Members
JustaDude, 3horseman, Firedog45, WtsTacoma01, Orion62
65265 Registered Users
Who's Online
95 registered (28oz, 2strokeNorthstar, advocate, 853okg, 14 invisible), 1534 Guests and 47 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
65265 Members
67 Forums
285589 Topics
4765992 Posts

Max Online: 3590 @ 01/24/17 08:07 PM
Donate to BITOG
Page 1 of 2 1 2 >
Topic Options
#4448718 - 07/03/17 07:54 PM Vacuum removal of transmission fluid
spk2000 Offline


Registered: 02/19/13
Posts: 984
Loc: Prospect, KY
I am wanting to change some of the fluid in my 96 grand marquis. thinking of using my vacuum oil pump to remove as much as I can then replace with that same amount and check the level. Transmission is shifting funny after it heats up for about 30 minutes highway speed on really hot days. Hoping replacing some of the fluid will make it stop. Any reasons I should not do this?

Also is Mercon V the correct fluid? Not really finding it anywhere.
_________________________
96 Grand Marquis
01 Sable LS
02 Montero

Top
#4448728 - 07/03/17 08:02 PM Re: Vacuum removal of transmission fluid [Re: spk2000]
clinebarger Offline


Registered: 12/19/13
Posts: 1902
Loc: Fort Worth, Texas
You need to make sure the transmission is not overheating.....Using a capable scan tool is the easiest way.
_________________________
2001 Chevy Camaro L92/4L80E
2006 Chevy 2500HD LBZ/Allison 1000
2010 Toyota Corolla 2ZR-FE/Auto

Top
#4448733 - 07/03/17 08:06 PM Re: Vacuum removal of transmission fluid [Re: spk2000]
Donald Offline


Registered: 03/21/04
Posts: 20450
Loc: Upstate NY
Have you looked for a drain plug?

A cooler line ATF exchange is a better way to go if you want a complete ATF exchange.

Doing what you mention is good to refresh the ATF. You need a total exchange of the ATF.
_________________________
2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)


Top
#4448746 - 07/03/17 08:19 PM Re: Vacuum removal of transmission fluid [Re: spk2000]
Nyogtha Offline


Registered: 10/13/14
Posts: 2319
Loc: San Antonio, TX
This chart should let you cross index your transmission or transaxle to the Ford specified fluid

Ford 2014 & Earlier Transmission Fluid Chart Link

(Note everything on the 1996 line specs Mercon V)


Edited by Nyogtha (07/03/17 08:21 PM)
_________________________
"No matter how paranoid you are you're not paranoid enough. Tell the truth. Reach as many people as you can with it. That's your weapon." - Susanne Modeski, aka "Holly" to The Lone Gunmen

Top
#4448765 - 07/03/17 08:35 PM Re: Vacuum removal of transmission fluid [Re: spk2000]
Ethan1 Offline


Registered: 12/29/14
Posts: 1632
Loc: 'murica
Do it. I even use a vacuum pump before I do a pan drop to make the process cleaner. I used to do oil changes with a vacuum pump when I had a car with messed up drain plug threads.

If you're going to keep the car for a while, I recommend replacing the filter at least and maybe installing an aftermarket pan with a drain plug.

Top
#4448773 - 07/03/17 08:43 PM Re: Vacuum removal of transmission fluid [Re: spk2000]
CT8 Offline


Registered: 10/09/14
Posts: 10930
Loc: Idaho
Probably the best thing to do would be a pan drop and replace the filter. It the trans still slips go from there.
_________________________
"Don't let your preconceived notions get in the way of facts."
Geoff Metcalf

Top
#4448801 - 07/03/17 09:01 PM Re: Vacuum removal of transmission fluid [Re: spk2000]
wrcsixeight Offline


Registered: 10/15/10
Posts: 1729
Loc: california
Gotsta get at the in pan filter, in my opinion. The appearance of the bottom of the pan can help one decide whether to spend any money on the AT.

I recently dropped my pan, added a fram XG16 on an external mount, and have filled it with nearly 7 quarts of the 12 qt capacity. There was noticable shift quality difference being firmer and faster. I had no slipping, just a seeping steel cooler line I had to replace anyway which forced the other procedures.

I have a drain plug, and will likely wait for a deal on ATF+4 and then let it drain overnight and replace with the same amount.

First time I got it on the highway for a bit, and pulled off to check, i found the level low. No leaks, Took highway driving to purge all the air I guess. Carry extra after refilling.

Top
#4448877 - 07/03/17 10:08 PM Re: Vacuum removal of transmission fluid [Re: spk2000]
barkingspider Offline


Registered: 12/22/13
Posts: 2041
Loc: socal
I would do a filter replace and drain n fill at the least.
_________________________
06 Cadillac Escalade Ext
17 Cadillac ATS (wife)
05 Toyota Camry (daughter)
11 GMC Canyon off-road (daily)

Top
#4448975 - 07/04/17 12:32 AM Re: Vacuum removal of transmission fluid [Re: spk2000]
69GTX Offline


Registered: 09/23/15
Posts: 3815
Loc: Connecticut
More than likely your 1996 was originally specced for Mercon. Since 2001 Ford has back specced everything to Mercon V (ie their spec chart). Only difference is that Mercon is semi-synthetic, shears half as fast as Mercon, and will last longer between OCI's. Since the cost of the 2 is not very different, I'd just go with the Mercon V SuperTech at $4.29/qt.
_________________________
----------------

2001 Lincoln Cont 4.6L DOHC/ 39K mi / QS HM 5w30 / FUG XG2
1999 Camaro SS M6 /19K /Mobil 1 0w40 /Fram UG /GM MTL-ATF
1969 Ply GTX/RRs

Top
#4449016 - 07/04/17 04:34 AM Re: Vacuum removal of transmission fluid [Re: spk2000]
DoubleWasp Offline


Registered: 05/21/12
Posts: 5236
Loc: Fort Lauderdale, FL
Get that pan off. You might be amazed at what's sitting in the bottom of even a good transmission after all of that time.
_________________________
07 Lincoln Navigator M1 0w-40/FU
68 Charger R/T / Supercharged 440 VR1/DBL7349
07 Ram 3500 4x4 / Cummins 6.7 /DBL7349
17 Maserati GranTurismo Cabrio

Top
#4449025 - 07/04/17 05:15 AM Re: Vacuum removal of transmission fluid [Re: spk2000]
Lubener Offline


Registered: 01/22/11
Posts: 2576
Loc: N.Ohio
Like stated, you need to change out the filter too. Sucking 4 or 5 quarts out likely won't do anything. You can do a fluid siphon later after the filter change. I believe that transmission has a drain plug for the converter where you can get all 12 quarts out of the transmission. You might want to check on that. Fill up with mercon V.


Edited by Lubener (07/04/17 05:19 AM)
_________________________
The "thinking" man's friend.

Top
#4449144 - 07/04/17 08:44 AM Re: Vacuum removal of transmission fluid [Re: barkingspider]
andyd Offline


Registered: 09/25/04
Posts: 7138
Loc: Marshfield , MA
Originally Posted By: barkingspider
I would do a filter replace and drain n fill at the least.
Yah that is what I did to a 727 in my first Grand Wagoneer. A pan drop,new flocked filter, gasket and 3-4 qts of Dextron. A hail Mary advised by my BIL. I limped home in dribs and drabs, taking 40 minutes to go 4 miles. The filter was plugged and not letting any ATF to pump. The fluid was dark and the pan was full of sludge. After a cleaning of the pan and a refill, it ran like new when I test drove it.
_________________________
'16 Camry LE STP synth 0w20 and STP filter. the Fridge

1994 Ranger ,the Rat, 5w30 dino, STP filter

'16 Camry SE, Valvoline HM 0w20 and OEM filter
Thick oil is better grin2

Top
#4449161 - 07/04/17 08:57 AM Re: Vacuum removal of transmission fluid [Re: spk2000]
ArcticDriver Offline


Registered: 01/27/17
Posts: 1139
Loc: USA
I disagree with almost all of the above posts depending on how much effort you are able to SAFELY provide. Dropping the pan requires certain tools (jack and jackstands) to do it safely while using a vacuum pump can be performed under the hood. It all depends on your own circumstances and skill level.

A Ford ATF filter is a "lifetime" filter which only captures very large debris, but changing some of the ATF to "fresh" fluid can help your overheating more.

SPK2000:

Your 1998 Mercury Marquis 4.6L 8-cylinder has transmission 4R70W.

If you drop the pan it will drain between 4-5 quarts (assuming you have the correct level now).
You should be able to remove nearly this much with a vacuum pump and it is much easier to use the pump.
You can drive around for a few days and then vacuum out again and add more new ATF and this will give you a good "refresh".



If you perform a complete flush including the Torque Converter, then the total capacity of your transmission is:

Automatic Transmission, Total Fill
4 speed 4R70W..........13.9 quarts


Wal-Mart has a great ATF for $18/gallon (4-qts) called Valvoline Max-Life...it is a full synthetic and it is compatible with your current fluid:

https://www.walmart.com/ip/Valvoline-Max...13=&veh=sem

If you decide to change the Trans Filter then here is a good kit: https://www.summitracing.com/parts/wix-58955



Edited by ArcticDriver (07/04/17 09:11 AM)
_________________________
Multiple Diesel and Gasoline vehicles

Top
#4449178 - 07/04/17 09:10 AM Re: Vacuum removal of transmission fluid [Re: spk2000]
ArcticDriver Offline


Registered: 01/27/17
Posts: 1139
Loc: USA
I would also visually inspect the radiator to see if there is debris like insects blocking good air flow.

And I meant 1996 in my above post...although 1998 is the same.


Edited by ArcticDriver (07/04/17 09:15 AM)
_________________________
Multiple Diesel and Gasoline vehicles

Top
#4449601 - 07/04/17 04:59 PM Re: Vacuum removal of transmission fluid [Re: spk2000]
spk2000 Offline


Registered: 02/19/13
Posts: 984
Loc: Prospect, KY
Did the vacuum and got 4 quarts out. Have driven it yet to see if it's improved or not yet. $20 for 5 qts of ST Mercon V at Walmart. Would have liked the Valvoline but the Walmart I went to did not have it. Meijer only had Mobil 1 for more than twice as much. I may get around to a full fluid replacement but wanted to see what this might do. The car is not worth much at this point. It has been sideswiped and backed into the front end. Nearly 180,000 miles now and I paid $3,100 for it 7 years and nearly 100k miles ago. It has been a great car with minimal problems. If it dies I am likely to get another newer one with low miles.
_________________________
96 Grand Marquis
01 Sable LS
02 Montero

Top
Page 1 of 2 1 2 >