1997 Volvo 960 Q&A

1997 Volvo 960 Question: my motor rise up and down like if someone was pressing the gas and releasing it

What could be causing the motor to do this/ -
Answer 1
A VAC LEAK WOULD MAKE IT SURGE OR IDLE CONTROLS, LIKE DIRTY THROTTLE BODY OR MASS A/F SENSOR -
Comment 1
Thank you so much I will have the idle controls checked. -