Engine Mechanical problem
2003 Ford Ranger 6 cyl Two Wheel Drive Automatic 70, ooo miles
speedometer bounces up and down while the truck is idling
Saturday, April 24th, 2010 AT 1:47 PM
1 Reply
BLUELIGHTNIN6
MECHANIC
16,542 POSTS
Your vehicle uses vehicle speed sensor and output shaft speed sensor to operate speedometer, if its bouncing it may be due to a failing sensor or faulty ground to sensor(s) or back of cluster.