This Haynes repair and service manual covers Honda Accord models, 2003 thru 2007 with 2.4L DOHC (iVTEC) and 3.0L V6 SOHC VTEC engines.
Note: this manual DOES NOT include information specific to hybrid models.
Book Excerpt: 2003-2007 Honda Accord Repair Manual
GENERAL ENGINE OVERHAUL PROCEDURES
OIL PRESSURE CHECK
Refer to illustrations 2.2a and 2.2b
Low engine oil pressure can be a sign of an engine in need of rebuilding. A "low oil pressure" indicator (often called an "idiot light") is not a test of the oiling system. Such indicators only come on when the oil pressure is dangerously low. Even a factory oil pressure gauge in the instrument panel is only a relative indication, although much better for driver information than a warning light. A better test is with a mechanical (not electrical) oil pressure gauge.
Locate the oil pressure sending unit on the engine block:
a) On four-cylinder engines, the oil pressure sending unit is located above the oil filter on the rear of the engine block (see illustration).
b) On V6 engines, the oil pressure sending unit is located above the oil filter on the filter adapter (see illustration).
Unscrew and remove the oil pressure sending unit and screw in the hose for your oil pressure gauge. If necessary, install an adapter fitting. Use Teflon tape or thread sealant on the threads of the adapter and /or the fitting on the end of your gauge's hose.
Connect an accurate tachometer to the engine, according to the tachometer manufacturer's instructions.
Check the oil pressure with the engine running (normal operating temperature) at the specified engine speed, and compare it to this Chapter's Specifications. If it's extremely low, the bearings and/or oil pump are probably worn out.
MANUAL TRANSAXLE
GENERAL INFORMATION
Vehicles covered by this manual are equipped with either a five-speed (four cylinder models) or six-speed (V6 models) manual transaxle or a five-speed automatic transaxle.
All information on the manual transaxle is included in this Part of Chapter 7. Service procedures for the five-speed automatic transaxle can be found in Chapter 7, Part B. You'll also find certain procedures common to both transaxles - such as oil seal replacement - in this Chapter.
Depending on the expense involved in having a transaxle overhauled, it might be a better idea to consider replacing it with either a new or rebuilt unit. Your local dealer or transaxle shop should be able to supply information concerning cost, availability and exchange policy. Regardless of how you decide to remedy a transaxle problem, you can still save a lot of money by removing and installing the unit yourself.
TABLE of CONTENTS:
Introduction to the Honda Accord: Vehicle identification numbers. Buying parts. Safety. Maintenance techniques. Chemical and lubricants, and more.
