I have a 1998 mercury grand Marquis with about 146,000. I get to 50-55 and have a vibration. thought it was torque converter shudder, but flushed the tranny and changed the filter to no avail. any ide

Asked by Apr 04, 2017 at 09:59 PM about the 1998 Mercury Grand Marquis 4 Dr GS Sedan

Question type: Maintenance & Repair

4 Answers

79,375

Is the CEL on? Any codes? Balanced the tires lately?

101,885

If you do have converter shutter servicing won't really help, I have had some luck using a product called Shutter Stop, you just add it to the transmission fluid, it really worked on my old Bronco, had to put some more back in after I serviced it as the shutter came back without it, was still working when it got wrecked. Advanced auto parts use to carry it.

CEL? Also, I have used shudder stop but it didn't work. I'm not sure it is shudder, but it feels like running over rumble strips.

101,885

That sounds different that converter shutter, you may have an internal pressure problem or solenoid chatter inside the tranny, have you had it too a tranny shop for any tests?

Your Answer

Grand Marquis

Looking for a Used Grand Marquis in your area?

CarGurus has 1,706 nationwide Grand Marquis listings starting at $1,000.

ZIP:

Mercury Grand Marquis Experts

  • #1
    Tracy Hooks
    Reputation
    5,760
  • #2
    kbro
    Reputation
    2,150
  • #3
    Js08016
    Reputation
    1,880
View All

Related Models For Sale

Used Lincoln Town Car
41 Great Deals out of 1,744 listings starting at $1,000
Used Ford Crown Victoria
5 Great Deals out of 1,172 listings starting at $1,496
Used Ford F-150
2,485 Great Deals out of 193,493 listings starting at $799
Used Ford Mustang
588 Great Deals out of 36,170 listings starting at $1,800
Used Chevrolet Tahoe
689 Great Deals out of 41,244 listings starting at $1,995
Used Cadillac DeVille
1,580 listings starting at $2,995
Used Lincoln Continental
16 Great Deals out of 3,910 listings starting at $35,942
Used Ford Taurus
185 Great Deals out of 15,819 listings starting at $1,850
Used Chevrolet Silverado 1500
2,220 Great Deals out of 167,684 listings starting at $1,000

Used Cars For Sale

2011 Mercury Grand Marquis For Sale
24 listings starting at $5,450
2010 Mercury Grand Marquis For Sale
4 Great Deals out of 92 listings starting at $4,995
2009 Mercury Grand Marquis For Sale
6 Great Deals out of 81 listings starting at $2,799
2008 Mercury Grand Marquis For Sale
8 Great Deals out of 152 listings starting at $2,790
2007 Mercury Grand Marquis For Sale
8 Great Deals out of 125 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.