Question about 1999 Mercury Grand Marquis

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I need to check and put in transmission fluid in my 1999 grand marquis

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Under the hood there will be a dipstick marked for transmission. You need to check the fluid level while the engine is running. If you need to add fluid, you use a funnel and pour the fluid in through dipstick tube.

Posted on Nov 14, 2010


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How do I put transmission fluid into my 1993 Mercury Grand Marquis?

Look towards the back of the engine at the passenger side and you will see a handle probably marked transmission. It will protrude from a small diameter tube. When you lift this handle there will be a thin metal piece that is the dipstick used to check the fluid level. Before you check the fluid let you car warm up to normal operating temperature and run the selector through the gear positions. Make sure your car is on a level surface and insert the dipstick back into the tube fully and pull it back out and read the fluid level at the tip of the stick. The car must be warmed up to get the correct fluid level.Transmission fluid expands as it heats up. It will show low if you check it when it is cold. If you add fluid when it is cold this will result in an overfill condition when it warms up and will cause foaming and possible transmission damage.

Apr 06, 2012 | 1993 Mercury Grand Marquis

1 Answer

Put 1 quart of dextron III/mercon in a transmission that calls for mercon v what should i do.its a 1997 mercury grand marquis

1 quart probably won`t have much of a affect on the transmission as there is about 10-12 quarts in the transmission to start with.the only way to fix it is to do a transmission service and change all the fluid and the fluid in the torque converter it has a drain plug that you will have to find so you can drain it.

Jul 06, 2011 | 1997 Mercury Grand Marquis

2 Answers

In my Grand Marquis 1999 while i am driving suddenly o/d off light is flashing what is the problem, is that possible to be transmission oil ? thanks

Not the trans fluid

Oil only cools,lubes & applies pressure to
the clutch drums & bands

You change trans & power steering fluid
every 3 years or 30,000 miles on ALL Vehicles

Changing trans fluid DOES NOT FIX ANYTHING

You have to have the OD light issue diagnosed

May 23, 2011 | 2004 Mercury Grand Marquis

1 Answer


Checking the fluid is not work. Get car up to running temp. Put in park. get out and open hood. Find the transmission dipstick. Pull it out and check the fluid level.

Jan 15, 2011 | 1992 Mercury Grand Marquis

1 Answer

Are there any known problems with 1985 Grand Marquis' shifting hard when you put into drive and begin moving? Would changing the transmission filter and fluid possible solve this problem and should a...

if the problem is only when first putting car into gear, you have either an engine that is idling too high or bad engine mounts. check those things first

Feb 17, 2010 | 1985 Mercury Grand Marquis

1 Answer

Transmission service

No there is no drain plug on the torque convertor , it typically holds 5 quarts of fluid at one time. While the transmission is open, check for any metal shavings on the magnet, this would indicate problems inside. make sure they change the fluid filter , before returning the transmissoin to service.

Jul 12, 2009 | 1991 Mercury Grand Marquis

1 Answer

Transmission hesitates shifting into second and perhaps third gear when driving slow. When acceleration is positive transmission shifts smoothly. Reference "99 Mercury Transmission" as Subject when

Several things could be causing your problem:
  1. Auto transmission fluid is low
  2. Auto transmission fluid needs changing; this is an area that gets neglected by a lot of people;check the fluid and if its brown or gives off a burning smell, it needs changing. Very old transmission fluid will cause slipping in the transmission; if this is the case, it should be changed along with the filter
Hope you find that this answers your question. Best of luck.

p.s. If you have the fluid changed, make sure it's done from the tranmission pan, not through the filler tube; siphoning through the filler tube can be hazardous to the transmission, especially cars with a lot of miles

May 30, 2009 | 1999 Mercury Grand Marquis

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