2010-2015 CX-9 – NOISE FROM FUEL TANK INSULATOR
APPLICABLE MODEL(S)/VINS
2010-2015 CX-9 vehicles with VINs lower than JM3TB******460027 (produced before April 1, 2015)
Unusual noise while driving the vehicle.
The noise may be caused by a broken fuel tank (B) insulator (A) that is hanging down and contacting the propeller shaft.
The rivets (C) may break when a load occurs. The rivet material has been changed to eliminate this concern.
REPAIR PROCEDURE
- Safely raise the vehicle on a hoist, then inspect the insulator for damaged at the rivet(s).
- Remove the pre-silencer from the vehicle according to the instructions on MS3 online or the Workshop Manual (section 01-15).
NOTE: (4WD Only): Disconnect the propeller shaft from the differential.
- Remove and discard the insulator from the fuel tank.
CAUTION: When removing the rivet pins using a drill, pay close attention not to damage the fuel tank.
- Install the new insulator with modified rivets.
- Re-install the pre-silencer according to the instructions on MS3 online or the Workshop Manual (section 01-15).
NOTE: (4WD Only): Re-connect the propeller shaft to the differential.
PART(S) INFORMATION
| Part Number | Description | Qty. | Notes |
| TK31-56-398 | Rivet | 5 | — |
| L214-42-741A | Insulator | 1 | 4WD |
| L206-42-741A | Insulator | 1 | 2WD |
| FSB8-40-305
Genuine Mazda FSB8-40-305 Exhaust Gasket
Last update on 2026-06-17 / Affiliate links / Images from Amazon Product Advertising API | Gasket | 2 | Replacement parts |
| AJ17-40-305
Genuine OEM 2007-2013 For Mazda CX-9 exhoust System Pre-Muffler Gasket AJ17-40-305 AJ1740305
Last update on 2026-06-19 / Affiliate links / Images from Amazon Product Advertising API | Gasket | 1 | — |
- QUALITY ASSURED
- Reduces: rough idle, engine surge, hesitation, and spark plus fouling
- 20 oz. bottle.
- Improves: cold start performance, and fuel stability for up to one year
Last update on 2026-06-16 / Affiliate links / Images from Amazon Product Advertising API
- DEEP FUEL SYSTEM CLEANING - Cleans the entire fuel system (injectors, carburetor passageways, intake valves, and chamber areas) to help restore power, MPG, and throttle response.
- FUEL ADDITIVE FOR GASOLINE AND DIESEL ENGINES - Breaks down fuel residues and varnish for smoother idling and cleaner combustion in gasoline and diesel engines.
- OIL TREATMENT FOR ENGINE CLEANING - Cleans sludge and deposits that can restrict oil flow and lubrication in motor oil crankcases, helping support longer engine life in car and truck engines.
- FUEL STABILIZER - Keeps gas or diesel fresh for up to 2 years. Ideal as a fuel stabilizer and gas stabilizer for stored cars, motorcycles, and generators.
- SAFE FOR ALL ENGINES & FUELS - Compatible with all gasoline and diesel fuels and blends, including E10 and E85. Trusted for use as a gasoline and diesel fuel additive.
Last update on 2026-06-17 / Affiliate links / Images from Amazon Product Advertising API
- The world’s #1 fuel additive for both gasoline and diesel engines
- A great tune-up in a bottle – treats gasoline, diesel fuel and increases MPG
- Cleans and lubricates the fuel system, including fuel injectors, carburetor and combustion chamber
- Improves fuel economy by burning excess exhaust emissions
- Increases power and acceleration by improving fuel flow and reducing deposit buildup
Last update on 2026-06-16 / Affiliate links / Images from Amazon Product Advertising API
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