Parts for your 1999 Daihatsu Gran move-Exhaust mount

1999 Daihatsu Gran Move exhaust mount — what it does and when to replace it

Technical sources confirm the 1999 Daihatsu Gran Move (M100/M101 series, also known as Pyzar) is fitted with exhaust mounts. The Daihatsu Workshop Manual for the M100/M101 details the exhaust system being supported by rubber insulators/hangers at the front pipe, centre section and rear muffler. The Daihatsu Electronic Parts Catalogue lists “insulator, exhaust” components for these positions, and common aftermarket application charts for the Gran Move/Pyzar specify replacement exhaust hanger rubbers for the same locations. So yes—exhaust mounts are relevant and used on this vehicle.

The Gran Move’s exhaust mounts (also called hangers or insulators) are the simple rubber bits that suspend the exhaust under the car. Their job is to hold the front pipe, centre muffler and rear muffler in the right spot while soaking up engine and road vibration. That isolation keeps the cabin quieter, stops the exhaust knocking on the body or suspension, and reduces stress on the manifold, catalytic converter and joints.

On a tidy Gran Move they’ll typically be found near the catalytic converter/front pipe area, mid-way at the centre muffler, and at the tail section. Over time, heat, road grime and age can make the rubber stretch, crack or perish. When that happens, the pipe can sag, sit off-centre in the bumper cut-out, or tap the floor on take-off. Tell-tales include a droney note on the motorway, a metallic rattle over bumps, or a clunk as the exhaust shifts under load.

As part of routine servicing, it’s smart to eyeball the mounts every 10,000–15,000 kilometres (or at each service). Look for splits, glazing, elongation of the holes, or rusted support hooks. If one is cactus, replace it—ideally in pairs on the same section—to keep the exhaust sitting even. Fitting is straightforward: let the exhaust cool, safely support the system, spritz the old rubbers with silicone spray, lever them off, and slide new ones on. Check bracket fasteners and heat shields while you’re there and make sure there’s proper clearance around the axle, floor and bumper.

If the car’s doing a lot of rough-road work, slightly firmer polyurethane mounts can reduce sag, but may pass a touch more vibration into the cabin. For most Gran Move owners, quality OE-style rubber insulators hit the sweet spot for comfort and longevity. Always tighten brackets to the specs in the Daihatsu workshop manual and recheck clearances after a short drive.

• Key signs it’s time: sagging tailpipe, new rattles or thumps, droney exhaust note, or visible cracking/perishing of the rubbers.
• Handy tip: a dab of rubber grease or silicone spray makes installation a breeze and helps prevent tearing.

Popular questions about 1999 Daihatsu Gran Move exhaust mounts

How many exhaust mounts does a 1999 Gran Move have?
Most Gran Move (M100/M101) exhausts use roughly three to four mounts: one near the front pipe/catalyst area, one around the centre muffler, and one or two at the rear muffler. Exact count can vary with trim and any aftermarket exhaust sections fitted. A quick look under the car will confirm placement.

What are the symptoms of a worn Gran Move exhaust mount?
Common symptoms are a sagging or off-centre tailpipe, knocks or rattles over bumps, a thud on acceleration or braking, and a boomier, dronier exhaust note. Visual checks often show stretched or cracked rubber, or shiny witness marks where the pipe has been touching the body or suspension.

Can polyurethane exhaust mounts be used on a Gran Move?
Yes. Polyurethane mounts are a bit firmer and can control movement better on rough roads or with a heavier aftermarket system. They may transmit slightly more vibration than OE-style rubber, so for daily driving many owners stick with quality rubber insulators for the best comfort–durability balance.