SuperMotors.net Forums
gwoo10
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• Salisbury, NC, USA |
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• Registered on 9/18/2013 |
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• 1 post |
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 Posted:9/18/2013 13:00 |
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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? |
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jdmeaux
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• Lafayette, LA, USA |
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• Registered on 1/5/2009 |
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• 525 posts |
• 1
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Posted:9/18/2013 13:02 |
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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
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