@I have a leak at the transmission shifter. What would be the procedure to replace the seal. Do I need to open the transmission cover? Andre

not told at all which end leaks (the exact spot matters)
I bet there is lots more wrong !
when did car last run good, or not leak ATF
last week,, last year, last decade? what?clues help.

history matters on all and service done. for 39 years
last owner left the pan loose and 2 bolts left and 5 turns loose, we cant see under any car.
front seal blown on or behind TC
rear seal; blown
pan gasket a wreck
pan hit rocks and cut and leaks
side shifter rod seal blown
or sensors on it leak (VSS)
governor cap seals blown./
more, sure.

Its a long procedure.

Go through the related help links,similar to your issue:---
Click the link below:---
How to remove Front differential? http://howtobyme.blogspot.com/2012/01/how-to-remove-front-differential.html

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Timing Belt, Cover, Sprockets, & Seal replacing ? http://technoanswers.blogspot.in/2012/02/timing-belt-cover-sprockets-seal.html

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Crankshaft Front Seal? http://schematicsdiagram.blogspot.com/2011/12/crankshaft-front-seal.html

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Rear Main Seal Leaking? http://whatisbyme.blogspot.in/2012/05/2003-lexus-rx300-rear-main-seal-leaking.html

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Differential Chatters? http://whatisbyme.blogspot.in/2012/04/1996-toyota-prado-differential-chatters.html

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4x4 front differential will not engage the axle? http://technoanswers.blogspot.in/2012/02/4x4-front-differential-will-not-engage.html

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CV AXLE stuck in Transmission? http://technoanswers.blogspot.in/2012/04/cv-axle-stuck-in-transmission.html

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These will help.For more help,keep updated.Thanks.

Your problem will be on the oil seal, mechanical seal and gasket. This oil seal are located near the pulley of the engine or in the transmission . This seal need to replace when your car getting old. In gasket the best way is to replace the this with new the oil pan and the valve cover or did you check your oil filter maybe the it needed to tighten or need to replace. This is a heavy work it need service personnel to do this job because they going to open the engine. Your can still use your car as long as you monitor the oil level.

Hi, welcome to FixYa.com my name is Shawn and I will be answering your question.

FORD: 2000-2007 Taurus
2000-2003 Windstar
2004-2007 Freestar MERCURY: 2000-2005 Sable
2004-2007 Monterey
This article supersedes TSB 05-14-5 to update the Service Procedure and vehicle model years. ISSUE: Some 2000-2007 Taurus, 2000-2005 Sable, 2000-2003 Windstar, and 2004-2007 Freestar/Monterey vehicles, equipped with a 4F50N, AX4N, or AX4S transaxle, may exhibit an erratic fluid level reading on the transaxle dipstick and possible leaks around the filler tube and grommet. The condition may be due to a restricted transaxle vent.
ACTION: Repair the transaxle vent restriction by replacing the transaxle vent with a 90° vent stem, small hose clamp, two (2) tie raps, and 24" (61 cm) of 5/16" (8 mm) vacuum hose. The 5/16" (8 mm) vacuum hose will be routed from the 90° vent on the transaxle back to the cowl area, next to the brake master cylinder and tie rapped in place with the end of the hose facing down. Refer to the following Service Procedures.
NOTE: ON WINDSTAR, FREESTAR AND MONTEREY SEAL THE COWL PANEL GRILLE (COWL TOP VENT PANEL) AREA, SEE TSB 06-14-10. NOTE: LEAKS MAY BE MISDIAGNOSED AS COMING FROM THE PAN GASKET. ALWAYS FOLLOW WORKSHOP MANUAL, SECTION 307-01 TO LOCATE THE SOURCE OF A LEAK, AND LEAK CHECK WITH BLACK LIGHT AND DYE. SERVICE PROCEDURE

1. Disconnect the mass air flow (MAF) sensor electrical connector.
2. Disconnect the crankcase vent tube(s) from the air cleaner outlet pipe.
3. Loosen the clamp and disconnect the air cleaner outlet pipe from the throttle body.
4. Release the air cleaner housing clamp(s).
5. Separate the air cleaner cover from the air cleaner tray.
6. Windstar, Freestar and Monterey only: Remove cowl panel grille by following the procedure in TSB 06-14-10.
7. Disconnect the shift cable if located over the top of the vent.
8. Remove the vent, pull straight up on the vent with locking pliers, or carefully pry the vent from the transaxle case.
9. Install the replacement 90° vent stem.
   • Windstar, Freestar, Monterey, Taurus, and Sable with column shifter - Must face to the right rear of the vehicle with the flat edge of vent base parallel to the chain cover boss (Figure 1)
   • Taurus and Sable with floor shifter - Must face to the rear of the vehicle with the flat edge of vent base parallel to the chain cover boss (Figure 2)
   
   
   
   Figure 1 - Article 06-18-13
   
   
   
   
   Figure 2 - Article 06-18-13
   
   
10. Install one end of a 24" (61 cm) long piece of 5/16" (8 mm) vacuum hose to the 90° vent stem and secure with a small hose clamp.
11. Route the vacuum hose back and up to the cowl area and down next to the brake master cylinder. Carefully tie rap the hose in place next to the brake master cylinder (do not tie rap to brake lines), be sure the end of the hose is facing down and not directly above anything hot.
    • Windstar, Freestar, and Monterey (Figure 3, 4, and 5)
    • Taurus and Sable with column shifter (Figure 6)
    • Taurus with floor shifter (Figure 7)
    
    
    
    Figure 3 - Article 06-18-13
    
    
    
    
    Figure 4 - Article 06-18-13
    
    
    
    
    Figure 5 - Article 06-18-13
    
    
    
    
    Figure 6 - Article 06-18-13
    
    
    
    
    Figure 7 - Article 06-18-13
    
    
12. Connect the shift cable, if removed.
13. Install the air cleaner cover and outlet pipe. NOTE: USE THE ALIGNMENT NOTCHES TO CORRECTLY ALIGN THE AIR CLEANER COVER TO THE AIR CLEANER TRAY.
    
14. Install the air cleaner housing clamp(s).
15. Connect the air cleaner outlet pipe to the throttle body and tighten to 35 lb-in (4 N-m).
16. Connect the crankcase vent tube to the air cleaner outlet pipe.
17. Connect the MAF sensor electrical connector.
18. Windstar, Freestar, and Monterey only, follow TSB 06-14-10 to seal and install the cowl panel grille.

PART NUMBER PART NAME 1C3Z-7034-AA Vent

I hope my assistance helped you and resolved your concern, if you need further assistance please ask.

Only 9 places it could leak from i will list them: Front seal,rear seal. servo seal. pan gasket, shifter linkage seal, governor cove seal, cooling lines,odometer cable connector, and the air went at the top of the transmission.

yes, I just changed one of these recently. Had to take both front and bottom off engine. Very difficult repair, as there are no good jack points for the engine when you have all the motor mounts off.
Here is procedure I would recommend.
Remove starter and engine to transmission brackets front and back.
Remove transmission starter gear cover.
drain oil and remove oil pan.
put a block under the crankshaft and jack to release weight on motor mount.
remove front motor mount (by serpentine belt)
remove belt.
remove compressor and bracket.
remove crank pulley and vib damper.
remove timing cover. mark timing belt with direction of travel
loosen tensioner gear.
remove timing belt.
remove crankshaft timing gear and key.
remove seal and oil pump housing.
clean gasket surfaces.
replace seal and reverse procedure.

If you have questions, let me know.

sounds like the plug came out and needs replaced

Hi:
Your manual transmission is most likely leaking from one of the drive axle seals.
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For about $20 you will have access to diagrams, troubleshooting, and more!

you have several points to check!
the dip stick tube has a "O" ring seal at the bottom where it fits to tranny.
a reverse switch on tranny & the shifters selector shaft has a seal that may be leaking !
there are the cooler pipes from cooler to tranny [in & out] plus pump seal to the torque converter [leaks out between engine & tranny bellhousing] & then there are the drive shaft or shafts seals
so wipe it all clean & park it in a diffrent clean spot!
some will only leak when its runnung due to tranny,s internal pressure!

The oil on the spark plug usually comes from the valve cover seal or the spark plug tube. The valve cover seals to the tube and the tube seals to the head. The tube is usually a tight fit in to the head with a little sealant. The tubes can be purchased at the chrysler dealer or possibly at a local parts store. As for the red fluid,it is automatic transmission fliud . It is used in the manual transmission as well as the power steering system. You could have an axle seal leak, transmission shifter seal leak, power steering seal leak, depending on which side of the vehicle is wet.