The contact owns a 2017 Acura MDX. The contact received notification of NHTSA Campaign Number: 23V751000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

- Orange, TX, USA

The contact owns a 2017 Acura MDX. The contact stated while driving 65 MPH, the vehicle continuously jolted and jerked, prompting him to pull to the shoulder of the roadway to turn off the vehicle. After restarting the vehicle, the failure persisted. Several unknown warning lights were illuminated. The vehicle was towed to the dealer, who diagnosed failures with the crankshaft position sensor and connecting rod bearings. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 23V751000 (Engine and Engine Cooling), but the VIN was not included. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was 120,000.

- Taylorsville, KY, USA

The contact owns a 2017 Acura MDX. The contact received notification of NHTSA Campaign Number: 23V751000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue and confirmed that parts were not yet available. The manufacturer was made aware of the issue and confirmed that parts were not yet available. The contact had not experienced a failure. Parts distribution disconnect.

- Macungie, PA, USA

The contact owns a 2017 Acura MDX. The contact stated that while starting the vehicle, there was a sound as if the engine was choking. There were no warning lights illuminated. The vehicle was taken to the dealer where it was diagnosed that the rod bearings had failed. The dealer informed the contact that the engine needed to be replaced. The vehicle had not been repaired. The contact learned of NHTSA Campaign Number: 23V751000 (Engine and Engine Cooling) however, the VIN was not included in the recall. The manufacturer was made aware of the failure and it was confirmed that the VIN was not included in the recall. The failure mileage was 90,000.

- Norman, OK, USA

The contact owns a 2017 Acura MDX. The contact received notification of NHTSA Campaign Number: 23V751000 (Engine and Engine Cooling) however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

- Sun City West, AZ, USA

The contact owns a 2017 Acura MDX. The contact stated while starting the vehicle, the engine made an abnormal knocking sound. There was no warning light illuminated. The vehicle was taken to the dealer, where it was diagnosed that the connecting rod bearing was knocking, and the dealer recommended replacing the engine. The vehicle was not repaired. The manufacturer was notified of the failure and informed the contact that the VIN was not included in NHTSA Campaign Number: 23V751000 (Engine and Engine Cooling). The manufacturer referred the contact to the NHTSA Hotline for assistance. The failure mileage was 133,000.

- Center Junction, IA, USA

The contact owns a 2017 Acura MDX. The contact stated that while his wife was driving at an undisclosed speed, she heard an abnormal knocking sound coming from the engine compartment. No warning lights were illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the connecting rod bearing, resulting in damage to the engine. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 23V751000 (Engine and Engine Cooling) but the VIN was not included. The manufacturer was notified of the failure, and a case was opened. The failure mileage was 110,000.

- Prosper, TX, USA