Reduced Fuel Pump Performance May Cause Stall or Fires in Recalled Honda Ridgeline Vehicles
Honda has received no reports of fires, crashes or injuries related to this condition
Honda is recalling certain 2017-2019 Ridgeline trucks. Car wash detergents containing sulfuric acid could drain from the truck bed and seep into the fuel pump’s fuel feed port. If the substance is not fully rinsed, it can cause the fuel feed port to crack, resulting in a pressurized fuel leak. Fuel leakage in the presence of an ignition source increases the risk of a fire and an unexpected engine stall.
What's the problem?
All vehicles built from production start-up through January 16, 2019 are affected, which total approximately 106,683. Vehicles built from January 17, 2019 were assembled with a fuel pump cover to seal the fuel feed port from drainage.
The recall stems from reports of fuel leaks/ fuel smells in the affected vehicles. The first report was received in February 2017. The fuel pump module supplier reviewed the failed part and judged that the cracking of the fuel feed port was caused by acid exposure. It was believed to be an isolated incident. After receiving additional reports of fuel leak/smell, Honda reopened the investigation. This included investigation of the various entry paths that fluids could reach the fuel pump feed port, analyzing how the vehicle’s layout contributed to fluid entry, and failure mode analysis of returned parts. The analysis of returned parts confirmed that residual and material stress did not contribute to the cracking.
Based on information provided by vehicle owners who complained of a fuel leak/smell occurring shortly after a car wash, Honda began analysis of car wash detergents to determine whether there was correlation between the two. Re-creation tests confirmed that car wash detergents containing sulfuric acid could cause material degradation and cracking in the fuel feed port. Honda confirmed that the drain holes in the truck bed allowed fluids to channel towards the fuel feed port.
What happens next?
Honda will notify owners and dealers will replace the fuel pump, if necessary, and install a fuel pump cover free of charge. The recall is expected to begin on March 7, 2019. As of January 17, 2019, Honda has received 14 warranty claims, six field reports, and no reports of fires or injuries related to this issue.
Because the limited new vehicle warranty on all affected vehicles would have provided a free repair for the problem addressed by this recall, without any payment by the owner, reimbursement for repairs will not be offered.
Owners may contact Honda customer service at (888) 234-2138. The recall number for this recall is Q3V.