This 36 pages actuator troubleshooting manual provides the complete diagnostic and repair procedure for DTC 0287-07 — Intake Valve Actuator #3 Not Responding — on Caterpillar C15 on-highway truck engines (MXS configuration). The document details system operation, oil pressure specifications, sensor testing, leak test procedures, and actuator inspection steps required to resolve the fault code.
Official 36 pages actuator document details
| Brand | Caterpillar (CAT) |
| Model coverage | C15 Truck Engine MXS (MXS00001-UP); references also apply to C11 and C13 engines |
| System / Group | Intake Valve Actuation (IVA) System — DTCs |
| Publication no. | RENR5088-10 |
| Year / Revision | Published 01/02/2009, updated 25/02/2009 |
| Pages | 36 |
| File size | 1.4 MB |
| Format | |
| Language | English |
Document table of contents
- 0287-07 Intake Valve Actuator #3 Not Responding — Conditions Which Generate This Code, System Response
- Intake Valve Actuator Response — Test (System Operation Description)
- IVA Component Locations — Control Valve, Pressure Sensor, Check Valve, Actuators (Illustrations for C11, C13, and C15)
- System Operation During Engine Start — ECM sequence, control valve timing, 283-7 code activation
- System Operation During Engine Operation — Solenoid, piston, and rocker arm hydraulic cycle
- Troubleshooting Procedure — Diagnostic codes table for mechanical and electrical problems
- Engine Oil Pressure Verification — Severity 1 and Severity 2 trip point tables (C11/C13 and C15)
- IVA Oil Pressure Sensor Test — Fabricated test assembly, air pressure vs. voltage table
- Leak Test Procedure — Purge orifice verification, O-ring and face seal inspection, expected results
- Actuator Inspection and Replacement — Debris check, face seal evaluation, road test verification
Applicable truck models
This manual targets the Caterpillar C15 on-highway truck engine in the MXS configuration (serial prefix MXS00001-UP). The IVA system descriptions and several illustrations also reference C11 and C13 engines, making portions of the troubleshooting procedure relevant to those platforms. The ECM controls the intake valve actuation system using pressurized engine oil and solenoid-actuated valves under each valve cover. Oil pressure specifications are provided separately for C11/C13 and C15 engines at speeds from 500 to 2100 rpm. For official parts and service resources, visit Caterpillar’s official website.
Who needs this 36 pages actuator manual
Diesel mechanics and workshop owners diagnosing DTC 0287-07 or related IVA fault codes (such as 283-7) on Caterpillar C15 truck engines will find this document essential. It provides step-by-step test procedures, oil pressure trip-point tables, sensor voltage ranges, and leak-test illustrations needed to isolate mechanical or electrical failures in the intake valve actuation system and return the engine to full power.
The full 36-page PDF is available in the DiagTechPro manuals library, free account required to download.
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