2005 Acura TL Problems
RepairPal has identified the most common problems with the 2005 Acura TL based on complaints from actual vehicle owners. We'll tell you what the problem is and what it'll take to fix it.
The 1998-2014 Acura TL V6 may develop issues with the automatic transmission.
Rough shifting may occur, and the “D4” light and check engine may begin to blink. The check engine light will also illuminate, and OBD trouble codes P0700, P0730, P0740, P0780, P1768 and/or P1768 will be stored in the computer.
If the transmission shifts roughly, the failure is very likely mechanical failure of the transmission. If the transmission performs normally, a faulty sensor, or dirty transmission fluid may be the case.
In most cases, it is necessary to use professional diagnostic equipment to provide a diagnosis, and complete the repair.
The longevity of the transmission is dependent on strict adherence to the manufacturer's recommendation for ATF replacement intervals and procedure.
The Acura TL may have issues with the idle air control system, causing:
- Erratic/bouncing idle
- Poor fuel mileage
- Illumination of the check engine light
- OBD trouble code P0505
- Engine stalling is possible
The idle air bypass system is made up of vacuum lines, an idle air control valve (IACV), the throttle body, and intake manifold, and allows enough air into the engine to idle when the throttle body is closed. The OBD trouble code P0505 refers you to this system to inspect for failures.
The most likely cause is a dirty or failed IACV, but vacuum lines, intake manifold gasket, throttle body gasket, and IACV gasket should be inspected.
In all cases involving the IACV, the throttle body ports should be cleaned prior to installing the IACV onto the throttle body.
The 1998-2014 Acura TL commonly has problems with the EVAP canister vent solenoid. It stops responding to commands to open and close, and the following occurs:
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 1999-2008 Acura TL has brake caliper issues, which are known for causing vibration and grinding noises at all times.
The brake rotor is a disk that sits between two brake pads. The brake pads are squeezed against the disk by what is called a brake caliper. When that caliper gets stuck, the brake pads are permanently pressed against the rotor causing:
The repair for a seized brake caliper, the brake pads, brake rotor, and brake caliper must be replaced or vibration will remain after the new caliper is installed. Changing the brake fluid and flushing the brake system according to manufacturer specified intervals can help improve longevity of the brake caliper.
The exhaust recirculation valve (EGR) on the 1995-2014 Acura TL may fail, causing:
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.
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 1995-2006 Acura TL 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.
A squeak type noise may be noted when raising or lowering the front door glass. Our technicians tell us that in most cases this issue can be corrected by replacing the door glass seal.