2004–2008 Acura TL UA6 Service Manual

2004–2008 Acura TL UA6 factory service manual from Honda Motor Co., Ltd., Service Publication Office, First Edition September 2003. It covers the J32A3 engine and manual- and automatic-transmission configurations, with U.S. and Canadian specifications.

PDF Search, Diagram Detail, and Page Count

Finding procedures and reading circuits: PDF text search is unavailable, and there are no embedded PDF bookmarks. The printed section contents and alphabetical index provide navigation references. Small connector numbers and wire-color labels in dense wiring diagrams require zooming.

One printable, English-language PDF contains 1,963 pages, including the cover, seven introductory and safety pages, nine blank separator pages, and one notes page.

VTEC Engine Work, Transaxle Overhaul, and System Diagnosis

These selected coverage highlights outline part of the manual’s contents. Further topics include lift and support-point diagrams and emergency towing information.

• Engine repair: Step-by-step procedures for engine removal, cylinder-head service, timing-belt replacement, valve-clearance adjustment, and crankshaft and piston inspection.

• Transaxles and clutch: Manual and automatic transmission disassembly, internal inspection, reassembly, differential service, clutch repair, and automatic-transmission pressure testing.

• Fuel and emissions: PGM-FI fault diagnosis, electronic throttle control, VTEC troubleshooting, fuel-pressure testing, and EVAP system checks.

• Steering and suspension: Power-steering pump tests, steering gearbox overhaul, wheel alignment, wheel-bearing replacement, and front and rear suspension service.

• Brakes and VSA: Caliper overhaul, brake bleeding, sensor diagnosis, modulator-control unit replacement, and VSA sensor neutral-position memorization.

• Climate control: Electrical troubleshooting, heater and evaporator core replacement, compressor-clutch overhaul, refrigerant leak testing, and system performance checks.

• Electrical and restraints: Starting and charging diagnosis, B-CAN troubleshooting, connector-terminal views, and SRS fault-code procedures, subject to the coverage limits below.

This manual is written for qualified professional technicians; its diagnostic procedures assume appropriate shop training, test equipment, and access to tools such as the Honda Diagnostic System (HDS).

Engine Repair and Cooling-System Service

Engine sections extend beyond routine maintenance into bearing selection, cylinder-bore inspection, piston-ring replacement, valve-guide replacement, and valve-seat reconditioning. VTEC rocker-arm testing includes mechanical checks and an air-assisted test of the synchronizing mechanism.

Timing-belt coverage distinguishes new-belt installation from used-belt installation. Crankshaft pulley work identifies holder handle 07JAB-001020B and holder attachment 07MAB-PY3010A.

The cylinder-head removal procedure warns that improper bolt loosening can cause head warpage. Cooling coverage includes water-pump replacement, thermostat testing, radiator service, and coolant refilling and bleeding.

Transmission Inspection and Fault Isolation

Manual-transmission overhaul covers synchronizer inspection, mainshaft thrust-clearance adjustment, and differential carrier-bearing preload. The mainshaft disassembly section specifically warns that a jaw-type puller can damage gear teeth.

Automatic-transmission coverage includes valve-body inspection, clutch clearance checks, shaft and bearing work, road and stall-speed tests, and individual solenoid tests. Separate procedures address the third- and fourth-clutch transmission fluid pressure switches.

The diagnostic charts connect symptoms and fault codes to circuit checks and component inspections. Together with pressure-test information, they support fault isolation before selecting an internal repair procedure.

PGM-FI and Electrical Troubleshooting

HDS coverage includes DTC and freeze-data retrieval, ECM/PCM reset functions, idle learning, and crankshaft-position pattern learning. Charging-system, cruise-control, and engine-mount-control troubleshooting provide additional circuit-specific diagnostic paths.

Illustrated references include the Charging System Circuit Diagram, Engine Mount Control System Circuit Diagram, PCM A/T Control System Circuit Diagram, VSA Circuit Diagram, and SRS Circuit Diagram. Connector views identify terminal positions alongside the related electrical checks.

Body, Climate Control, and Restraints Coverage

Body procedures cover door glass and regulators, moonroof components, interior trim, dashboard assemblies, seats, and subframes. Climate-control diagnosis includes sensor and actuator tests, fan circuits, and heater unit/core replacement.

Coverage limits: Body Electrical ends at printed page 22-334, followed immediately by Restraints page 23-13 at PDF pages 1,816–1,817. Later DPMS troubleshooting and the dedicated audio, display-panel, HandsFreeLink, and navigation sections referenced in the contents are absent. Restraints pages 23-1–23-12 are also missing.

The included SRS material covers fault diagnosis, OPDS initialization, deployment-related inspection, and component replacement. The manual reserves SRS service for authorized Acura dealers and specifies precautions against unintended airbag deployment.

Examples of Ignition, Inspection, and Cooling Specifications

Spark plug installation torque is specified at 18 N·m (13 lbf·ft), with the thread preparation described in the procedure. The cylinder-head standards table lists a warpage service limit of 0.05 mm (0.002 in.).

The starter performance test specifies current of 80 A or less and motor speed of at least 2,600 rpm at 11.5 V. Thermostat specifications show an initial opening range of 169–176°F (76–80°C).