Checking throttle body (TB)

WARNING: This page is about a different car, the 1998 Volvo C70. However, it is still accessible from the selected car via links, so may be relevant.

Slight jerks normally occur during engine braking.
Check that the seal on the throttle body (TB) adjustment screw is not broken (see arrow).
Check that the throttle spindle functions properly and is not sticking.

Fig 1: Checking Throttle Body (TB)

Courtesy of VOLVO CARS OF NORTH AMERICA.

Is the seal broken and/or is there play in the throttle spindle?

YES
Refer to Replacing component
NO
FAULT NOT FOUND: Troubleshooting has been completed.