Parts for your 1999 Ford Falcon-Engine mount

1999 Ford Falcon engine mount — what it does and when to replace it

Engine mounts absolutely are used on a 1999 Ford Falcon (AU Series). Factory documentation confirms this: the Ford AU Falcon Workshop Manual (1998–2002) specifies left and right engine mounting insulators for both the 4.0L inline-six and 5.0L V8, and a separate rear transmission mount. The Gregory’s Ford Falcon AU Series Service and Repair Manual, the Ford Microcat parts catalogue, and Mackay Consolidated’s engine mount listings all identify two primary engine mounts on AU Falcons, model year 1999 included.

On this Falcon, the engine mounts sit between the engine and the front subframe, cradling the donk on rubber-isolated brackets. Their job is simple but vital: hold the engine in place, keep vibration out of the cabin, and allow just enough movement so the drivetrain doesn’t transfer harshness through the body. Good mounts make the car feel tight and civil, tired mounts make it buzz, clunk and feel a bit sad at idle or on take-off.

They’re not a serviceable item like oil or filters, but they do wear out with age, heat, and the odd enthusiastic launch. A sensible check at major intervals (say every 100,000–150,000 kilometres, or whenever the sump’s off or the bonnet’s up for bigger work) will catch issues early.

• Common symptoms of worn mounts on an AU Falcon:
  • Noticeable vibration at idle that improves with revs
  • Clunk or thud on take-off, shift or lift-off
  • Excessive engine rock when blipping the throttle
  • Exhaust contact or fan shroud misalignment
  • Visible rubber cracking, separation, or collapsed height
• Replacement tips and servicing advice:
  • Support the engine safely with a hoist or a jack and timber under the sump before loosening mount hardware.
  • Replace mounts in pairs to keep balance and ride quality consistent.
  • Inspect the rear transmission mount at the same time, a tired rear mount can mimic front mount faults.
  • Torque fasteners to workshop manual specs and recheck after a short shakedown drive.
  • For daily use, stick with quality OE-equivalent rubber mounts, stiffer performance mounts can add vibration and cabin noise.

Most shops knock the job over in around 1–2 hours per side, depending on gear and how crusty the hardware is. Fresh mounts restore the Falcon’s smooth idle and tidy up driveline behaviour — a small upgrade that makes the old bus feel right again.

Popular questions about 1999 Ford Falcon engine mounts

How many engine mounts does a 1999 Ford Falcon have?
The AU Falcon typically uses two primary engine mounts at the front (left and right) and a separate rear transmission mount. Both the six and V8 setups follow this layout, although the specific mount designs and part numbers differ between engines.

What are the tell-tale signs my AU Falcon’s engine mounts are shot?
Look for a rougher idle in gear, a thud on take-off or shift, and the engine rocking more than expected when the throttle is snapped. Under-bonnet checks often reveal cracked rubber or a sagging mount that’s let the engine sit lower than normal.

Should I fit polyurethane or stick with rubber mounts?
For a daily-driven AU Falcon, quality rubber OE-style mounts keep vibration in check and feel the most factory. Poly or stiffer performance mounts sharpen response but usually add more noise and harshness, which some owners won’t love on longer commutes.