2018-2020 Mazda Recall 5321K Fuel Pump May Fail

November 12, 2021 NHTSA CAMPAIGN NUMBER: 21V875000

Fuel Pump May Fail

Fuel pump failure may cause an engine stall, increasing the risk of a crash.

 

NHTSA Campaign Number: 21V875

Manufacturer Mazda North American Operations

Components FUEL SYSTEM, GASOLINE

Potential Number of Units Affected 121,038

 

Summary

Mazda North American Operations (Mazda) is recalling certain 2018 Mazda3, Mazda6, 2019 CX-3, 2018-2019 MX-5, CX-5, CX-9, and 2019-2020 Mazda2 vehicles. The impeller inside the low-pressure fuel pump may crack and deform, potentially causing the fuel pump to fail.

 

Remedy

Dealers will replace the fuel pumps, free of charge. Owner notification letters are expected to be mailed January 11, 2022. Owners may contact Mazda customer service at 1-800-222-5500 Option 4. Mazda’s number for this recall is 5321K.

 

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.

 

Check if your Mazda has a Recall

 


Chronology of Defect

Fuel pump may fail on MY2019 and  MY2020 Mazda2, MY2018 Mazda3, MY2018 Mazda6, MY2019 CX-3, MY2018 and MY2019 CX-5, MY2018 and 2019 CX-9, MY2018 and MY2019 MX-5

 

March 26, 2019: Mazda received the first field information from outside the U.S, which reported the engine could not start due to an inoperative fuel pump. Mazda planned to collect the fuel pump from the subject vehicle and investigate it.

 

April 2019 through August 2019: As a result of parts investigation, it was confirmed that the fuel pump did not function because the deformed impeller in the fuel pump interfered with the fuel pump body. As part of the analysis, additional observations of cracking on the impeller surface were made. To understand the relationship between surface cracks and impeller deformation, Mazda began an investigation to attempt to determine which factors potentially contribute to cracking.

 

September 17, 2019: Mazda decided to conduct a recall for the purpose of confirming the root cause of the defect on CX-5 in China.

 

September 2019 through February 2020:As part of the investigation, Mazda hypothesized that testing solvent used during the manufacturing process and low density impellers may be factors causing impeller cracking and began duplication testing. During the test, the surface of the impeller cracked as the solvent dried over time. It was confirmed that fuel pumps produced with impellers of lower density exposed to production drying solvent for longer periods of time could experience the impeller cracking at a level that could lead to excessive fuel absorption, and could cause impeller deformation.

 

May, 2020: Mazda received no field information regarding this defect from the U.S or U.S territories. As a result of examination about the details of field information received from outside the U.S, Mazda found that there was a difference in occurrence rate among each region and hypothesized the high ambient temperature condition of usage environment may contribute to the occurrence of this defect.

 

July 10, 2020: Mazda decided to conduct a recall campaign on certain vehicles in China, South-eastern Asia, Central America, and the Middle East, where ambient temperature are relatively high. Since this defect did not seem to occur as often in other countries, Mazda determined to monitor future occurrence in other countries including the U.S and U.S territories. Concurrently, Mazda submitted a foreign recall report regarding this issue to NHTSA. In the report, Mazda explained that due to differences in U.S. logistic conditions, typical customer usage and other factors, this defect was not likely to occur in U.S. market vehicles. The U.S. market field data at that time supported this assessment. Mazda would continue to monitor the U.S. and U.S. Territories for future occurrences.

 

August 20, 2020: Mazda received the first field information on MY2019 CX-9 from the U.S market, reporting the vehicle experienced a lack of power due to this defect.

 

September, 2020 through January, 2021: Mazda recognized this failure was beginning to increase in some countries other than the U.S.

 

July 30, 2021: Mazda decided to conduct a recall campaign on a certain vehicle model in Mexico due to increasing field occurrences in that market.

 

August 6, 2021: Mazda submitted a foreign recall report regarding this issue to NHTSA. In the report, Mazda explained that due to differences in U.S. logistic conditions, typical customer usage and other factors, this defect was not likely to occur in U.S. market vehicles. The U.S. market field data at that time supported this assessment. Mazda would continue to monitor the U.S. and U.S. Territories for future occurrences.

 

August, 2021: Mazda recognized this failure was beginning to increase on a certain vehicle in Europe.

 

September 1, 2021: Mazda received the fourth field information on MY2018 CX-5 from the U.S market, reporting that fuel pressure was reduced.

 

Late August, 2021 through September, 2021: This defect frequency continued to increase in Australian markets. Although this defect continues to have a low rate of occurrence in the U.S at present, Mazda began to make arrangements for remedy parts correcting this defect as a precaution in case of global field action. Mazda had received four related field reports from the U.S and U.S territories up to this date.

 

November 5, 2021: Mazda held a Quality Audit Committee meeting to review all available information to date, and out of an abundance of caution, determined to conduct a proactive field action on certain MY2019 and  MY2020 Mazda2, MY2018 Mazda3, MY2018 Mazda6, MY2019 CX-3, MY2018 and MY2019 CX-5, MY2018 and 2019 CX-9, MY2018 and MY2019 MX-5 in the U.S and the U.S territories. No accidents, injuries or deaths have been reported as a result of this defect.

 


11 Affected Products

Vehicles

MAKE MODEL YEAR
MAZDA CX-3 2019
MAZDA CX-5 2018-2019
MAZDA CX-9 2018-2019
MAZDA MAZDA2 2019-2020
MAZDA MAZDA3 2018
MAZDA MAZDA6 2018
MAZDA MX-5 2018-2019

 


3 Associated Documents

Defect Notice 573 Report

RCLRPT-21V875-1378.PDF 219.354KB

RCLRPT-21V875-1378

 


Chronology

RMISC-21V875-0229.pdf 14.882KB

RMISC-21V875-0229

 


Recall Acknowledgement

RCAK-21V875-2835.pdf 645.646KB

RCAK-21V875-2835

 


Latest Recalls Documents

https://www-odi.nhtsa.dot.gov/acms/cs/documentList.xhtml?docId=21V875&docType=RCL

 


 

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  • 3 CONNECTION TYPES FOR TU-113 FUEL PRESSURE GAUGE TOOL KIT: The set is equipped with various fittings and hoses to connect for testing. 14"L hose is used for hooking up directly to the 1/4" SAE standard Schrader valve on fuel pump, 11"L hose for the small Schrader valve (for some Ford), and 8"L hose for M6 fuel pressure test port. 1/4" barbed brass fittings is direct for special test outlet on engine, and aluminum tee splices in-line between the fuel pump and engine for most vehicles.
  • PRIMARY FUEL PRESSURE TEST KIT: Pressure gauge adopts rubber cover protected 2-3/4" large dial with 0-100psi/0-7bar range and dual color coded scale for easy reading. The hoses use rubber nylon resin material, and the build-in nylon can strengthen the hose with increased stress resistance. Please note, there is no pressure relief valve and drain hose, please wrap cloth around hose connection before relieving pressure from fuel line and removing testing components.
  • CHECK FUEL INJECTOR PUMP PRESSURE: The pressure gauge is designed for checking the fuel injection pump pressure easily and quickly. You can compare the pressure value to the manufacturer's recommended reference range, aid to diagnose gasoline engine fuel system. Low fuel pressure can be caused by kink/leak/clog on inlet supply side components, a bad fuel pump or fuel regulator, low tank pressure. High fuel pressure may caused by a defective fuel pressure regulator or kinked outlet return line.
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JIFETOR Fuel Injection Pump Pressure Tester Gauge Kit, Car Gasoline Gas Fuel Oil Injector Test Manometer Tool Set 0-140PSI, Universal for Auto Truck SUV Motorcycle ATV RV
  • FITMENT TYPE FOR JIFETOR FUEL PRESSURE GAUGE KIT: The car fuel pressure tester kit is suitable for most vehicles with gasoline/gas engine fuel injection pump system (except for Bosch, CIS Jetronic, Throttle Body Systems on GM vehicles), not for diesel high pressure injection pump or direct-injection engine, due to the fuel gauge's low pressure range. Testing fuel pressure is an essential part of the troubleshooting process of fuel injection system.
  • CONNECTIONS FOR TU-114 FUEL PRESSURE GAUGE TOOL KIT: The fuel pressure test gauge set is equipped with various fittings and hoses to connect for testing. 15"L hose is used for hooking up directly to the 1/4" SAE standard schrader valve on fuel pump, 8"L hose for M6 fuel pressure test port, and there are also M8/M10/M12/M14 adapters for the corresponding test port on fuel rail. The aluminum tee help to splice in-line between the fuel pump and engine for most vehicles.
  • FUEL PRESSURE TEST KIT: Pressure gauge adopts rubber cover protected 3-1/2" large dial with 0-140psi/0-10bar range and dual color coded scale for easy reading. The hoses use rubber nylon resin material, and the build-in nylon can strengthen the hose with increased stress resistance. The pressure relief valve and 16"L fuel drain hose help to release pressure safely and recovery fuel easily. Blow molding case keeps everything in place and protects the gauges during storage.
  • CHECK FUEL INJECTOR PUMP PRESSURE: The pressure tester is designed for checking fuel injection pump pressure and fuel flow easily and quickly. You can compare the pressure value to the manufacturer's recommended reference range, aid to diagnose gasoline engine fuel system. Low fuel pressure can be caused by kink/leak/clog on inlet supply side components, a bad fuel pump or regulator, low tank pressure. High fuel pressure may be caused by a bad fuel pressure regulator or kinked outlet return line
  • SATISFACTORY CUSTOMER SERVICE: 30 days full refund with returned undamaged JIFETOR fuel pump pressure tester gauge. Any quality related problem in 1 year, we will replace the fittings for free or refund. Any question, please feel free to contact us by email or amazon message system, we will reply ASAP in 24 hours. Please check if the kit fits for your vehicles or not before biding or as soon as receiving, if not, please return for full refund, or contact us for help if overtime.

Last update on 2022-08-11 / Affiliate links / Images from Amazon Product Advertising API

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