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Forums > SuperMotors Community Discussion > Engine and Drivetrain
1999 Grand Marques Trans Service
Thread Statistics:     Users to Post: 2   |   Total Posts: 2   |   Total Views: 1098
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gwoo10
• Salisbury, NC, USA
• Registered on 9/18/2013
• 1 post
1 Vehicle
Posted:9/18/2013 13:00
I have a 1999 Mercury Grand Marquis LS. 91k
It has air ride and performance suspension.
There is a sound like you are running over rumble strips every now and then.
Reading on forums it sounds like it is a transmission issue.
I am looking into having the transmission fluids changed since I do not know
if it has ever been changed since I just purchased it. The question is
should I have it flushed or should the pan be dropped and the torque converter drained also?
jdmeaux
• Lafayette, LA, USA
• Registered on 1/5/2009
• 525 posts
1 Vehicle
Posted:9/18/2013 13:02
An automatic transmission should be serviced between 15-20K miles, pulling the pan and draining the converter.

*******************
PROUD MEMBER of www.crownvic.net

It's just a SUPER-DUTY Mustang GT Sedan. 198K miles and still rolling HARD.

1997 Crown Victoria P71 SVT *** ex-US Marshall service (the CAR)
STOCK?? I bet it was modified.

13.26 @ 107.24 MPH 1/4 mi w/ me, tools, & full tank of 93 octane

I added CAI, NICHE 19 X 8.5 " wheels with 245/45ZR 19 rubbers, and completely rebuilt the front end with poly bushings, Kooks headers, 2 1/4inch exhaust, TCI 2200-2400 rpm Stall converter

.PLANS:: engine upgrade, 5.4L 2v stroker, rebuild interior in leather w/ buckets, thinking about turbos

Forums > SuperMotors Community Discussion > Engine and Drivetrain
1999 Grand Marques Trans Service
Thread Statistics:     Users to Post: 2   |   Total Posts: 2   |   Total Views: 1098
You must be logged in to post in or subscribe to this thread.Pages: 1

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