My grand marquis (98) has a hard time shifting or slips around 2 an 3 gear an at same time when cold runs fine but warmed feels heavy

20

Asked by Dec 16, 2015 at 10:26 PM about the 1998 Mercury Grand Marquis 4 Dr LS Sedan

Question type: Maintenance & Repair

7 Answers

805

Most likely the clutch pack in the trans are worn out. If the fluid is burned you could have a qualified technician flush the transmission with new fluid to see if that helps.

Best Answer Mark helpful
20

Well the tran fluid has been replaced an didn't help.

1 of 1 people found this helpful.
20

Was thinking might be a tran solenoid.

1 of 1 people found this helpful.
805

Trans solenoids usually fail at any temp. A good transmission can diagnose it for you at a reasonable cost. But i suspect it will need rebuilding.

1 of 1 people found this helpful.
20

How would I diagnose it

1,515

It's probably shot, but try Lucas transmission additive, just in case it's sticky valves. I've seen miracles happen.

1 of 1 people found this helpful.
20

I've put some before. After the first change. I put the entire bottle. An rest with tran fluid.

Your Answer

Grand Marquis

Looking for a Used Grand Marquis in your area?

CarGurus has 1,573 nationwide Grand Marquis listings starting at $1,000.

ZIP:

Mercury Grand Marquis Experts

  • #1
    Tracy Hooks
    Reputation
    5,880
  • #2
    kbro
    Reputation
    2,180
  • #3
    Js08016
    Reputation
    1,940
View All

Related Models For Sale

Used Lincoln Town Car
23 Great Deals out of 1,605 listings starting at $2,450
Used Ford Crown Victoria
3 Great Deals out of 946 listings starting at $1,496
Used Ford F-150
3,338 Great Deals out of 225,662 listings starting at $1,250
Used Chevrolet Tahoe
903 Great Deals out of 39,853 listings starting at $1,990
Used Honda Accord
909 Great Deals out of 78,528 listings starting at $1,295
Used Ford Mustang
450 Great Deals out of 42,577 listings starting at $1,488
Used Cadillac DeVille
1,428 listings starting at $2,695
Used Ford Explorer
1,198 Great Deals out of 64,658 listings starting at $1,499
Used Ford Expedition
455 Great Deals out of 17,715 listings starting at $1,000
Used Chevrolet Silverado 1500
3,004 Great Deals out of 162,985 listings starting at $1,500

Used Cars For Sale

2011 Mercury Grand Marquis For Sale
14 listings starting at $5,835
2010 Mercury Grand Marquis For Sale
3 Great Deals out of 83 listings starting at $3,990
2009 Mercury Grand Marquis For Sale
5 Great Deals out of 80 listings starting at $3,999
2008 Mercury Grand Marquis For Sale
6 Great Deals out of 141 listings starting at $1,000
2007 Mercury Grand Marquis For Sale
5 Great Deals out of 120 listings starting at $1,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.