Parts for your 2002 Ford Falcon-Drive belt tensioner

2002 Ford Falcon drive-belt tensioner — what it does and when to replace it

Yes, the 2002 Ford Falcon uses a spring-loaded automatic drive-belt (serpentine belt) tensioner. This applies to late AU III (1998–9/2002) and early BA (from 9/2002) Falcons across the 4.0L inline‑six and V8 options. Technical references that specify an automatic accessory drive belt tensioner for these models include the Ford AU and BA Workshop Manuals (Engine/Accessory Drive, typically Section 303‑05), Gregory’s Service & Repair Manual for AU Series, and Australian parts catalogues from Gates and Dayco that list dedicated automatic tensioners for 1998–2005 Falcon applications.

The tensioner’s job is to keep the serpentine belt at the right tension so the alternator, A/C compressor, power steering pump and water pump all play nicely. It constantly takes up slack as the belt wears and as loads change, preventing slip, squeal and poor accessory performance. On the Falcon’s 4.0L six, the tensioner is released with a 3/8-inch square drive