Chevy Impala Motor Mount Symptoms and Replacement Cost (2006-2020)

The Short Answer

A worn or broken motor mount on a Chevy Impala typically causes a clunking noise, excessive vibration, and visible engine movement — and replacing a full set of mounts usually costs $450–$750 parts and labor combined.

The Chevrolet Impala ran for over six decades before its final 2020 model year, and there are still millions on the road. Motor mount failure is one of the most common complaints past the 80,000-mile mark on the modern front-wheel-drive generations. If your Impala is clunking, vibrating, or rocking under the hood, this guide covers what to look for and what it'll cost to fix it.

Chevrolet Impala mount layout: what's actually under the hood

The Impala's mount configuration changed significantly across generations — rear-wheel-drive Impalas from the classic era have a completely different setup than the transverse front-wheel-drive cars sold from 2000 onward. Here's what Westar's catalog covers for this vehicle and what each piece actually does:

Westar covers all seven of these mount types for the Impala across 158 distinct SKUs, spanning 1959 through 2020. The deepest coverage — meaning the most distinct fits — falls in the 2000–2003 and 2008–2009 model years, which reflects how many engine and transmission variants GM offered in those windows.

Which Chevrolet Impala years and engines fail most

The 9th-generation Impala (2006–2013) and 10th-generation (2014–2020) with the 3.5L and 3.6L V6 engines generate the most mount complaints, consistently showing up past the 80,000-mile mark. The torque strut mount and the right-side engine mount tend to go first on these cars — that's consistent with how transverse V6 platforms load their mounts under acceleration.

The 2000–2005 generation (8th gen, W-body platform) is also well-documented for mount wear, particularly on high-mileage city-driven cars. These shared a platform with the Buick LeSabre and Pontiac Bonneville, and mount wear patterns are similar across that family.

Earlier Impalas — the rear-wheel-drive cars from the 1960s through the 1980s — have a simpler, easier-to-access mount layout, and while rubber degradation still happens with age, the symptoms and access difficulty are different from the modern front-wheel-drive cars.

If you're in the 2000–2003 or 2008–2009 range specifically, Westar's coverage is deepest there, which reflects the number of distinct engine and configuration combinations GM used in those years. That's the window where getting the *exact right* mount matters most.

Symptoms of a bad motor mount on a Chevy Impala — what's specific to this car

1. Clunk or bang when shifting into Drive or Reverse

This is the one Impala owners describe most often. When a torque strut or engine mount fails, the engine lurches instead of staying put when torque loads up. You'll feel a distinct thud through the floor or hear a bang from the engine bay the moment the transmission engages. It's not a subtle creak — it gets your attention.

2. Vibration through the center console and front seat cushion

On the transverse V6 Impalas, a failed engine mount sends vibration directly into the subframe and up through the floor. Where you feel it most is the center console area and the front seat cushion — owners often describe it as the car feeling like it's "rumbling" or "shaking from underneath" at idle or low speed. It can be mistaken for a transmission or engine problem at first.

3. Hard acceleration causes a pronounced jolt or shudder

The torque strut mount on the Impala's 3.5L and 3.6L V6 takes the brunt of acceleration forces. When it wears out, punching the throttle from a stop produces a noticeable shudder or lurch that you feel in the seat and through the steering wheel. Highway on-ramps make it obvious.

4. Engine visually rocks when engaging Drive

Have someone sit in the car, hold the brake firmly, and put it in Drive while you watch the engine from the side with the hood open. On a car with a failed mount, you'll see the engine visibly rock or dip — more than about half an inch of movement is a clear sign something's given up. On the front-wheel-drive Impalas, this can also stress the CV axle shafts each time it happens.

5. Rattling or buzzing from the engine bay at idle that stops in Neutral

If your Impala rattles or buzzes under load (in Drive at idle) but quiets down when you put it in Neutral, that load-dependent pattern is a strong indicator of a worn mount. It means the drivetrain is torquing against a mount that can't hold it steady, creating intermittent contact with surrounding components.

6. Uneven engine position or accessory alignment issues

A completely collapsed mount lets the engine drop or tilt on one side. If your Impala has developed unusual belt wear, hose tension that looks wrong, or you can see one side of the engine sitting lower than it should, a fully failed mount is the likely cause.

What causes motor mounts to fail on the Impala

• Age and heat cycling — rubber hardens and cracks after years of expanding and contracting under the hood
• Oil contamination — an engine oil or valve cover gasket leak will accelerate rubber breakdown significantly; check for leaks if mounts are failing early
• City driving patterns — constant acceleration and braking loads the torque strut far more than steady highway cruising
• Cold climates — rubber gets brittle in extreme cold; cold-start lurching accelerates wear
• Deferred maintenance — running on a single failed mount shifts extra load to the remaining ones, wearing them out faster

On the 3.6L V6 Impalas in particular, the torque strut mount tends to wear first. If you're only seeing symptoms during hard acceleration, that's the one to check first — but plan to do the full set while you're in there.

Chevy Impala motor mount replacement cost breakdown

Parts

A single mount runs roughly $40–$120 depending on position and configuration. Complete kits — which are the smarter buy given you're already in there — typically run $290–$400 for a quality set covering the Impala's full complement of engine mounts, depending on how many pieces are included and which engine you have. Buying individually will cost more per mount.

Labor

The front-wheel-drive Impala is a moderately involved job. The engine has to be supported with a floor jack and a block of wood under the oil pan before any mount is unbolted. Access to some mounts — especially the rear torque strut — is tighter than it looks. Most independent shops charge $150–$350 for the labor, depending on how many mounts are being replaced and local shop rates. Dealers typically sit at the high end.

DIY

This is a doable home garage job if you're comfortable with engine support, but it's not a beginner repair. The real risk is letting the engine drop or shift while a mount is out — that can damage CV shafts. If you've done similar work before, you'll save the full labor cost.

Why Westar for your Impala motor mounts

Westar focuses specifically on mounts — not brakes, not filters, not everything else. That focus shows in the depth of their Impala coverage: 158 distinct SKUs from 1959 through 2020, with the most detailed fitment in the 2000–2003 and 2008–2009 windows where GM's engine variants multiply the configuration possibilities.

The kits are direct-fit replacements — no drilling, no adapters. For an Impala owner doing a proper, complete mount replacement, getting every mount from one application-specific source in one box is genuinely easier than hunting individual parts and hoping the combinations are right.

Use the part finder below to confirm which kit fits your exact year and engine. The differences between model years and configurations are real — getting the right fit up front matters.

Can you drive an Impala with a bad motor mount?

Your Impala will move, but you shouldn't put it off. A failed mount lets the engine shift position under load, which progressively stresses CV axle boots and joints, pulls on coolant hoses and vacuum lines, and can allow the engine to contact wiring harnesses. The clunking and vibration won't improve on their own, and each hard acceleration event causes more movement. Fix it sooner.

Sources

• Westar Industries motor mount catalog data, Chevrolet Impala fitment (1959–2020)
• General Motors Impala production history, 8th–10th generation platform documentation
• Typical repair cost ranges based on aggregated independent shop labor data and parts market pricing