Speedometer jumps between 20 and 40 when stopped

2002 FORD TAURUS
100,000 MILES
Avatar
JESSY
  • MEMBER
  • 1 POST
The speedometer jumps between 20 and 40 mph when stopped. My blinkers also blink double time when the speedometer does this. Also, when I turn my lights on, the car speeds up, and shudders like it is going to die. It does not do this every time, and it just started today.
May 5, 2012 at 8:53 PM
Advertisement
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.