2005 Acura RL Problems

RepairPal has identified the most common problems with the 2005 Acura RL as reported by actual vehicle owners. We'll tell you what the problem is and what it'll take to fix it.

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8
Known Problems

The 2005-2012 Acura RL commonly has problems with the EVAP canister vent solenoid. It stops responding to commands to open and close, and the following occurs:

  • Illumination of the check engine light
  • OBD trouble code P1457 is stored
  • Engine takes longer than usual to start
  • Fuel mileage decreases noticeably
  • The valve is located on the charcoal canister, and is meant to open and close upon command. It fails due to corrosion breaking one of two internal seals, which allows air to escape the system, signaling the OBD trouble code P1457.

    Correcting the problem can be done by replacing the vent valve, or, in some cases, cleaning and resealing the vent valve has been successful. You can get an estimate for this repair here.

    A worn, missing, or loose gas cap can cause the same issues.

    The ignition switch used in the 1996-2006 Acura RL commonly fails, causing:

  • Failure to start 
  • Engine stalling randomly 
  • Intermittent battery power
  • The ignition switch works by receiving power from the battery, then sending that power to another location by turning the key to the desired setting. When it fails, power cannot be transmitted to the proper components because of an improper electrical connection. This will effect everything that the key allows to run, including the engine.

    It can be intermittent, and a bump, or turn may cause the ignition switch to lose connection.

    Turning the key back and forth or shaking it may cause it to reconnect temporarily

    To correct the issue, replication of the fault is key. If the ignition switch tests bad when the problem is occurring, replacing the ignition should resolve the issue.

    The exhaust recirculation valve (EGR) on the 1996-2012 Acura RL may fail, causing:

  • Illumination of the check engine light
  • OBD trouble codes P0401 and P1491
  • Rough idle
  • Reduced fuel economy
  • Engine vibrations
  • Hesitation or stalling
  • Long cranking before engine starts
  • Failure of state or federal smog tests
  • The EGR valve has open and closed positions, and opens or closes on command from the computer.

    Exhaust gases constantly pass through the valve when it is open, leaving carbon deposits on the valve. These carbon deposits may lead the the valve sticking in the open or closed position.

    To correct this issue, sometimes it is sufficient to clean the valve, but replacement is recommended in all cases.

    For further information on your vehicle's issue, try out our diagnostics tool here.

    The 1996-2006 Acura RL may have issues with the fuel pump and fuel injection relays.

    These relays send power to the fuel pump and fuel injectors when the key is turned to the “ON” position. So, when they fail, there is no electrical current to the necessary fuel system components to send fuel into the engine, causing engine stalling or failure to start.

    In this situation, there are many other possibilities, so testing components is vital for time and money savings.

    If the relays test bad, they must be replaced with relays specific for that circuit.

    To help prolong the life of your under-hood electrical components, ensure the lid for the fuse block is closed, and any factory sealing material is correctly installed.

    The starter motor used on the 1996-2006 Acura RL frequently fails on vehicles around 125,000 miles.

    It may help prolong the life of the starter to service the starter to ensure the connections are clean and tight at the 100,000 mile mark.

    Some automatic transmissions have a shifting problem that can be corrected by simply reprogramming the computer.

    Acura extended the warranty due to numerous issues with the automatic transmission. Problems with the automatic transmission may make the car undrivable and can result in costly repairs.

    The Airbag (SRS) warning light may illuminate due to one or more failed sensors. Our technicians recommend complete diagnoses of any stored fault codes because these sensors can be very expensive to replace.