Description

Acura RSX Service Manual – OEM Factory Specifications for 2002-2006 Models

Anybody who’s tried to rebuild a Acura RSX Service Manual from a parts-store manual knows the frustration. You line up the timing marks, torque the cylinder head bolts to the spec in the book, and three months later you’re chasing a coolant leak because the spec was wrong. This isn’t that book. This is the factory manual from Honda Motor Co., Ltd. – 2019 pages of the exact procedures, torque values, and diagnostic flows the dealer techs use. Page 1 lays out the safety messages, including the SRS warnings that tell you to disarm the airbag before touching anything. I’ve seen a tech pop a passenger airbag because he skipped the SRS disconnect step. That’s a $1,200 mistake and a trip to the ER. This manual prevents that.

It covers every system on the RSX from 2002 through 2006 – your base model, Type-S with the K20A2 or K20Z1, automatic or manual. The thumb index on the front cover lets you flip straight to the section you need without hunting through a table of contents. Sections like Engine Electrical, Transaxle, Steering, and Restraints are tabbed. If you’ve ever wasted time flipping pages, you’ll appreciate that.

Engine Assembly and Cylinder Head Coverage

The Engine Mechanical chapter (section 05-06) walks you through removing the engine, installing it, then diving into the cylinder head. You get the VTEC rocker arm test procedure – critical for diagnosing that flat spot at 5,500 rpm. The VTC actuator inspection is in there too. Valve clearance adjustment is on page 06-11 of the manual. You’ll need a set of feeler gauges and the factory sequence. There’s a reason the K20A2 makes 200 hp stock – the valve lash specs are tighter than most engines. Use the wrong clearance and you’ll get ticking or burnt valves.

Torque specs for the cylinder head bolts are in the Specifications chapter (02-03). They list both the standard torque and the angle-tighten steps. You don’t guess with aluminum heads.

What Torque Values Are Listed in the Specifications Section?

Section 02-01 “Standards and Service Limits” covers Engine Electrical, Cylinder Head, Engine Block, Lubrication, Cooling, Fuel and Emissions, Clutch, both 5-speed and 6-speed manual transmissions, automatic, steering, suspension, brakes, and air conditioning. Then Design Specifications gives you dimensions, weights, electrical ratings, wheel alignment, tire pressures. Every torque spec is in lb-ft and lb-in. No conversion math. If you’re doing a clutch job, the flywheel bolt torque is there. If you’re rebuilding the 6-speed M-T differential, the ring gear bolt spec is listed. You can trust these numbers because they come from the same engineers who designed the parts.

3 Maintenance Schedules for Different Model Years

The manual separates maintenance by model year. For 2002-2003 models, there’s a schedule for normal conditions and one for severe conditions. Same for 2004-2006 models. Lubricants and fluids are specified by type – Honda ATF-Z1 for the automatic, 75W-90 for the manual trans. The schedule tells you when to replace the timing chain tensioner, spark plugs, and coolant. If you buy a used RSX and don’t know the maintenance history, you can reset the baseline using these intervals. Page 03-02 lists the exact fluid capacities. Overfill the transmission and you’ll get shifting issues.

Check the Valve Clearance Using Factory Procedure

VTEC engines need precise valve lash. The manual gives you the exact sequence for checking and adjusting. It also tells you to use special tools – the valve adjusting tool (part number in the manual). Don’t try to bend the adjustment screw with pliers. You’ll score the rocker arm. The procedure also includes a VTEC rocker arm test to see if the synchro pistons are sticking. That’s a test you won’t find in any aftermarket supplement.

SRS: The Safety Section You Can’t Ignore

The Supplemental Restraint System section is marked with asterisks throughout. Every SRS component requires special precautions. The manual shows you how to disarm the system, wait the required time for capacitor discharge, and handle the airbag modules. If you’re replacing a steering wheel or seat belt pre-tensioner, you follow the SRS section first. Page 1 of the manual has the DANGER message – you will be killed if you ignore. That’s not marketing, that’s fact.

You also get the full wiring diagrams for the SRS system in the Body Electrical section. Those diagrams are not simplified – they show every connector, splice, and ground location.

Source Validity: Why OEM Beats Aftermarket

I’ve used aftermarket manuals. They compress procedures, omit steps, and sometimes they copy the wrong diagram from a different model year. This manual is the original factory print. The copyright page says “First Edition 07/2005” and it came from Honda Motor Co.’s Service Publication Office. That means the torque specs, the VTEC test, the SRS disarm procedure – all verified by the manufacturer. If you’re a DIY mechanic who wants to keep your RSX on the road without chasing ghosts, this is the reference.

Related manuals you might also need:

• Acura RSX 2002 Service Manual – Factory OEM Specs
• Acura Integra 1998 Service Manual – OEM Factory Specs
• 1993 Acura Vigor Service Manual – OEM Factory Specs

For a broader understanding of OEM documentation standards, see Automotive Industry Overview and Automotive Industry Overview.

Frequently Asked Questions

Is this manual the same as the one dealer techs use?

Yes. It’s the identical publication from Honda Motor Co.

Does it include detailed wiring diagrams?

Yes, the manual includes circuit diagrams for every electrical system—starting, charging, ignition, cruise control. Each diagram is accompanied by a component location index and a symptom troubleshooting index. For example, the starter circuit troubleshooting on page 04-06 walks you through voltage drops, solenoid tests, and relay checks. The charging system section has alternator control circuit troubleshooting and drive belt inspection procedures. If you’re chasing an intermittent electrical issue, the systematic approach in this manual saves you hours of staring at a multimeter. The diagrams are OEM, not redrawn by a third-party.

Will this manual help me with a K20A2 engine swap?

It covers the K20A2 and K20Z1 engines used in the RSX Type-S. Engine removal and installation procedures are in the Engine Mechanical section. The VTEC rocker arm test and VTC actuator inspection are included. However, if you’re swapping into a different chassis, you’ll need additional information.

Are the torque specs in imperial units?

All specs are given in lb-ft and lb-in. The manual also lists metric equivalents.

Stop guessing with aftermarket data. Access the Factory Manual now and get the real specs for your Acura RSX.