SAAB 9-5 2.0T Rough Idle and possible cause
Hi all,
This is my 1998 SAAB 9-5 2.0T which had a rough Idle.
If you have a similar case, be sure to check the following possible causes:
1) Vacuum hose from firewall's side which plugs into throttle body.
2) Throttle body migh be dirty and with debree.
3) Brake booster leaking vacuum (my cause) . Brakes were hard to press aswell.
4) Vacuum leaks across engine bay.