Three problems related to engine exhaust system have been reported for the 1999 Mercury Sable. The most recently reported issues are listed below.
Fumes inside car noticed, and a slight strange sound from car when running. When taken to shop to find problem, a crack was noticed at the y shaped pipe connecting to both catalytic converters. In order to repair this the whole system has to be replaced even though the converters are fine.
Problems with abs. The vehicle was in two accidents due to the inability to control the vehicle during normal driving conditions, where the abs did not work. The vehicle was in for repair 7 times. The following are repairs and or problems the vehicle experienced: torque converter replaced after transmission fluid was found low, exhaust leak fixed, washer fluid would spray when the turn signal and lights were on, shaking when the brakes were applied/resurfaced rotors, trunk leaked water, replaced multi-function switch to fix washer fluid problem, abs not working when there was a panic stop, left and right spindle assembly was replaced, front end rotors were replaced again, wheel alignment, the abs did not engage and caused an accident, and replaced left side outer tie rod end.
Reporting raw fuel is getting into the vaporized systm, causing vehicle to stall while driving. Seeking help from NHTSA on this matter or provide additional information.