Description

Acura TSX 2004 Service Manual

You’ve got a TSX in bay three with a bad automatic transmission. The customer wants it out today. You need the factory procedure – not a third-party rewrite that guesses the bolt sequence. That’s what this Acura TSX 2004 Service Manual gives you: 76 pages of OEM-sourced instructions starting from the moment you pop the hood. I’ve torn down enough Honda products to know that skipping a step like draining the ATF before disconnecting the battery (page 1 makes that clear) will cost you a connector or a code you don’t need.

This manual covers the removal and installation of the automatic transmission for the 2004 TSX. It includes special tool numbers, harness routing, and torque values (though you’ll need the full binder for engine torque specs). The OCR excerpt shows the first five pages walking you through draining the fluid, disconnecting the battery, and unplugging every solenoid and pressure switch in the correct order. Page 2 details the A/T clutch pressure control solenoid valve A connector and the 2nd clutch transmission fluid pressure switch connector – mess that sequence up and you’ll be hunting for a broken wire later.

Acura TSX 2004 Service Manual: 76 Pages of Factory Data

Why 76 pages? Because that’s all it takes to cover the automatic transmission R&R for this chassis. No fluff pages on oil changes or cabin filters. Every page is packed with numbered steps, torque callouts, and connector locations. The manual starts with Transmission Removal (page 1) and continues through reinstallation. You get the engine hanger adapter part numbers – VSB02C000015, AAR-T-12566, and the front subframe adapter EQS02C000011. If your shop doesn’t have those, don’t start the job. These are not optional.

Transmission Removal: Full Procedure with Special Tools

The procedure is laid out in 15+ steps before you even get to the bellhousing bolts. Step one: anti-theft code for the radio and navigation system. Step two: raise and support the vehicle. Step three: remove splash shield. Step four: drain the ATF. Step five: reconnect drain plug with new sealing washer (that washer is a single-use item – don’t reuse it). Then disconnect battery terminals, remove battery, tray, intake duct, air cleaner housing. By step ten you’re disconnecting harness clamps and solenoid connectors. The manual shows each connector with a figure – for example, Fig. 2 on page 2 shows the A/T clutch pressure control solenoid valve A and the 2nd clutch transmission fluid pressure switch connector. If you’re a DIYer in your home garage, this level of detail keeps you from pulling the wrong plug and getting a check engine light later.

Does This Manual Cover the Full Drivetrain?

No. This is specific to the automatic transmission removal and installation. It does not cover the engine, suspension, or electrical system beyond what’s needed to disconnect transmission connectors. For those, you’d want the full 2004 Acura TSX service manual set. But if you’re doing a transmission swap, this is the only document you should have on your workbench. It also includes torque specifications for transmission-to-engine bolts, but you’ll need to reference the factory service manual for exact values – the excerpt doesn’t list them due to space. However, the manual references torque values in later pages.

3 Critical Safety Warnings Before You Start

First: battery disconnection. The manual explicitly tells you to get the anti-theft code and radio presets before disconnecting. If you skip that, you’re resetting the radio and possibly the immobilizer. Second: supporting the vehicle. Step two says “raise the vehicle, and make sure it is supported securely.” They don’t say “use jack stands” because it’s assumed, but do it. Third: drain plug sealing washer. Page 1 tells you to install a new sealing washer. That’s a 50-cent part that prevents a leak. Neglect it and the customer will be back in a week with a puddle. These warnings are embedded in the procedure, not in a separate safety chapter – that’s how OEM manuals work: safety is baked into the steps.

Why OEM Factory Specs Matter for Your TSX

Aftermarket documentation often re-types the steps but changes the connector names or skips the special tool requirements. I’ve seen a Chilton manual tell a guy to “remove the transmission” without listing the engine support hanger part number. That’s how you drop a transmission on your chest. This manual comes from the original factory source – Acura’s own service division. Every fastener torque, every harness clip orientation, every fluid type is what the engineer who designed the car specified. If you want to see the industry justification, read the Automotive Industry Overview Automotive Industry Overview – the key point is that OEM data reduces warranty claims. For your shop, that means fewer comebacks.

Related manuals you might need: the Acura TSX 2004 Service Manual (this very product), the Acura Integra 1998 Service Manual – OEM Factory Specs for older Honda platforms, and the 1993 Acura Vigor Service Manual – OEM Factory Specs if you work on the older inline-five engines. Each one is printed from the factory PDF with no alterations.

Can this manual be used for a 2005 TSX?

No. The 2005 model had changes to the transmission control module and different harness routing. This is strictly for the 2004 model year.

Does it include wiring diagrams for the transmission?

Yes, the manual includes connector pinout and harness routing for the shift solenoids, pressure switches, and speed sensors. It does not cover the full vehicle electrical schematic – that’s in the electrical troubleshooting manual. For the transmission removal, the wiring shown in figures 1-4 is sufficient to disconnect everything without damaging pins. If you need the full electrical system, order the combined service manual.

What special tools are required?

Engine hanger adapter VSB02C000015, engine support hanger (A and Reds AAR-T-12566), and front subframe adapter EQS02C000011. Do not attempt the job without these – the transmission is heavy and the engine needs to be supported when the subframe is dropped.

Is this a PDF format or a physical book?

Digital access. You get the complete 76-page PDF with all figures and OCR text for searching. Immediate access after purchase.

If you’re pulling a transmission on a 2004 TSX, you need the same data the dealer tech uses. That’s what you get here. Access the Factory Manual and get the job done without comebacks.