Particulates in Fuel May Adhere to Internal Fuel Pump Components in Recalled Acura and Honda Cars
American Honda has received no reports of crashes or injuries related to this issue
Honda is recalling certain 2016-2018 Acura MDX, 2015-2019 Acura TLX and 2015-2017 Honda Accord vehicles equipped with a 3.5L V6 engine. Particulates in fuel with high sodium content can adhere to the internal components of the fuel pump when it is in low-voltage operating mode during certain ambient conditions. This can cause reduced fuel flow to the engine, possibly resulting in an unexpected stall.
What's the problem?
Sodium particulates contained in some gasoline sold in the United States can adhere to certain internal components in the fuel pump, increasing electrical and mechanical resistance and reducing fuel pump performance under original control software programming. If a vehicle is operated in high ambient temperatures, reduced fuel pump performance can restrict vehicle acceleration and/or cause an engine stall, which may increase the risk of a crash.
Vehicles affected by this recall were equipped with a 3.5 L V6 engine and a specific fuel pump module. Other model years of the listed vehicles, as well as other trims of the listed vehicles during the affected model years, are not included in the recall because they were not equipped with a 3.5 L V6 engine and the specific fuel pump module. The recall only includes certain 2019 model year Acura TLX vehicles equipped with a 3.5 L V6 engine because fuel injection (FI)-ECU software was changed starting with vehicles produced on December 11, 2018.
Approximately 437,032 vehicles are affected by this recall. As of January 22, 2019, Honda has received 731 warranty claims, 102 field reports, and no reports of crashes or injuries related to this issue.
The affected part number for Acura TLX and Honda Accord vehicles is 17045-T2B-A10. The affected part number for Acura MDX vehicles is 17045-TZ5-A10.
What happens next?
The dealer will update the FI-ECU with software programming that eliminates 10V fuel pump operation and the potential for sodium accumulation free of charge. If the vehicle owner informs the dealer of an engine stall occurrence, and the engine stall is confirmed by a diagnostic scan, the fuel pump will also be replaced for free.
The recall is expected to begin on March 25, 2019. Owners who have paid to have these repairs completed at their own expense will be eligible for reimbursement.
Owners may contact customer service at (888) 234-2138. Acura's recall number for this recall is P3W. Honda's recall number for this recall is N3X.