Connecting rod bearings play a crucial role in an engine's operation. They are responsible for reducing friction between the crankshaft and connecting rod, ensuring smooth and efficient engine performance. Without proper lubrication and maintenance, these bearings can fail, leading to catastrophic engine damage.
In 2021, Acura issued a stop sale order for certain 2019-2021 ILX, 2020-2022 TLX, and 2020-2021 RDX models after reports of premature connecting rod bearing failure. This stop sale order prohibited the sale or delivery of affected vehicles until the issue was resolved.
Model | Year Range |
---|---|
ILX | 2019-2021 |
TLX | 2020-2022 |
RDX | 2020-2021 |
Investigations by Acura revealed that the premature bearing failure was caused by an inadequate oil supply to the bearings. This resulted from a combination of factors, including:
Common symptoms of connecting rod bearing failure include:
Diagnosis of connecting rod bearing failure typically involves:
Acura has implemented several measures to resolve the connecting rod bearing issue:
Affected vehicles must undergo a repair procedure that involves:
The cost of repairs for the connecting rod bearing issue varies depending on the model and extent of the damage. However, estimates range from $3,000 to $5,000.
Repairs are available at authorized Acura dealerships. Owners of affected vehicles are advised to schedule an appointment as soon as possible.
To avoid connecting rod bearing failure, it is important to:
Addressing the connecting rod bearing issue is crucial because:
The Persistent Mechanic: A mechanic was baffled by a persistent knocking sound coming from an Acura engine. After extensive testing, he finally discovered that the connecting rod bearings had failed due to an improperly installed oil filter. Lesson: Always follow manufacturer's specifications for maintenance procedures.
The Overzealous Driver: A driver ignored warning signals of low oil pressure and continued to drive their Acura. The result? Catastrophic engine failure and a hefty repair bill. Lesson: Don't ignore warning signs. If something sounds or feels wrong, get your vehicle checked immediately.
The Fortunate Owner: A concerned owner noticed a slight ticking noise in their Acura and took it to a dealership for diagnosis. The technicians discovered an early stage of connecting rod bearing wear and performed timely repairs, preventing a major failure. Lesson: Regular maintenance and an attentive ear can save you from costly problems.
Model | Affected Year Ranges |
---|---|
ILX | 2019-2021 |
TLX | 2020-2022 |
RDX | 2020-2021 |
Symptom | Description |
---|---|
Knocking or Ticking Noises | Metallic noises from the engine |
Increased Oil Consumption | Higher-than-normal oil usage |
Low Oil Pressure | Warning light or gauge indicating low oil pressure |
Engine Performance Issues | Reduced power, rough idling, stalling |
Cause | Description |
---|---|
Insufficient Engine Oil Capacity | Low oil level or inadequate oil supply |
High Oil Consumption | Excessive oil loss due to leaks or wear |
Defective Oil Pump | Malfunctioning oil pump that fails to provide sufficient oil pressure |
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