A cars tach jumps and runs with engine rpm.Sometimes if it jumps and changes engine sound,the throttle position sensor needs changing.If it jumps with no engine speed or sound change it means your alternator is going bad.
Check the speed sensor
run a new line to the distributor.
kangaroos
my friend jumps up and down.
The motion of the needle in a sewing machine is vertically, rapidly up and down.
it jumps up an down
how high you can jump straight up and down.
it jumps up and down
Your head jumps up and down.
Always bevel up.
Always bevel up.
anything that can jump but ON A PLANET WITHOUT GRAVITY!!!!!! Also in space where up could be down and down could be up. If a person jumps into a volcano the person will vaporize and the air particles will float upwards and possibly float into outer space where there is no up and there is no down.