One problem related to transmission fluid leaking has been reported for the 1998 Ford Mustang. The most recently reported issues are listed below.
Remote door does not work all of the time. Dealer replaced latch but did not correct the problem. Customer placed a small round magnet on the quarter panel on each side where the lid contacts the quarter panel temporarily correcting the problem. Customer would like the dealer to properly correct the problem. Car idles rough when accessorories are turned on. Transmission shifts harshly under various conditions. Transmission does not immediatelt engage in gear when going from park to drive. This seems to happen when car sits for an extended period of time but does not always occur. Customer has noticed at times an unusal large loss of transmission fluid but does not see a leak or smell. Right front door speaker cuts in and out.