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

645

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
20

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

1 out of 1 people think this is helpful.
20

Was thinking might be a tran solenoid.

1 out of 1 people think this is helpful.
645

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 out of 1 people think this is helpful.
20

How would I diagnose it

1,120

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

1 out of 1 people think this is helpful.
20

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

Your Answer

Add photo

Related Questions

Grand Marquis

Looking for a Used Grand Marquis in your area?

CarGurus has 2,243 nationwide Grand Marquis listings starting at $1,500.

ZIP:

Search Mercury Grand Marquis Questions

Mercury Grand Marquis Experts

#1 Tracy Hooks
Tracy Hooks
Reputation 4,900
#2 kbro
kbro
Reputation 1,970
#3 Js08016
Js08016
Reputation 1,490
View All

Related Models For Sale

Used Ford Crown Victoria
8 Great Deals out of 1,493 listings starting at $2,900
Used Lincoln Town Car
41 Great Deals out of 2,138 listings starting at $1,999
Used Ford Mustang
682 Great Deals out of 38,456 listings starting at $1,963
Used Chevrolet Tahoe
1,070 Great Deals out of 31,943 listings starting at $1,495
Used Ford F-150
3,363 Great Deals out of 205,120 listings starting at $1,273
Used Cadillac DeVille
1,964 listings starting at $1,600
Used Chevrolet Silverado 1500
2,629 Great Deals out of 148,912 listings starting at $1,800
Used Buick LeSabre
11 Great Deals out of 2,359 listings starting at $1,768
Used Ford Taurus
356 Great Deals out of 22,363 listings starting at $1,499

Used Cars For Sale

2011 Mercury Grand Marquis For Sale
5 Great Deals out of 44 listings starting at $7,617
2010 Mercury Grand Marquis For Sale
101 listings starting at $2,999
2009 Mercury Grand Marquis For Sale
6 Great Deals out of 116 listings starting at $3,495
2008 Mercury Grand Marquis For Sale
7 Great Deals out of 180 listings starting at $2,900
2007 Mercury Grand Marquis For Sale
10 Great Deals out of 167 listings starting at $1,500