1999 Ford Taurus

Shakes or Wobbles problem
1999 Ford Taurus 6 cyl Front Wheel Drive Automatic

My 99 Ford Taurus SE is dying when I sit in traffic or red lights sometimes. It doesn't do it every time. It just started shaking really bad now. When I am driving and let off the gas to slow down it will almost stop. It used to just slow down. It is kinda jerking and it feels like it is fighting to drive. It is also making an awful smell sometimes. It is like a burning poison smell. Will you please let me know what it could be? Thank you! Have a good day!
Stella heuser
June 27, 2010.

Do you have check engine light on and if so need to have it scanned for codes
check PCV valve and its hose, check for vacuum leaks
check EGR valve and its operation

Jun 27, 2010.