Yes. contact a Volvo dealer. They will fix it for free. Until then, don't worry unless you smell gas on the inside while you drive.
As per www.totalrecallinfo.com, not on 2005 or 2006, check links for other years.
no. throttle body
How do you replace a throttle body on a trailblazer 2002
on side of throttle body at throttle plate.
Purchase a can of throttle body cleaner and follow the directions on the can.
The throttle position sensor is on the throttle body, opposite of where the cables attach.
The throttle position sensor is on the throttle body.
Well the power steering cable is right next to the throttle cable on the throttle body.
Clean the throttle body with a spray throttle body cleaner.
If it is similar to the 2002, and I believe they are, It is permanently attached to the throttle body. To replace the sensor, you have to replace the whole throttle body.
It is on the throttle body on the opposite side of where the cables hook on.
thr throttle sensor is on the throttle body on the opposite side of the linkage