This IVA troubleshooting DTCs document covers the 0290-07 Intake Valve Actuator #6 not responding diagnostic procedure for the C15 On-Highway Truck MXS engine. It explains the intake valve actuation system, ECM response, oil pressure checks, sensor testing, actuator leak testing, and final repair verification. The file is a 36-page English PDF from Caterpillar Troubleshooting media RENR5088-10.
Official IVA troubleshooting DTCs document details
| Brand | CAT |
|---|---|
| Model coverage | C15 Truck Engine MXS; C15 On-Highway Truck MXS00001-UP |
| System/Group | C15 (MXS, NKS, or RKS) / DTCs; Intake Valve Actuation system |
| Publication no. | RENR5088-10 |
| Year/Revision | Publication Date 01/02/2009; Date Updated 25/02/2009 |
| Pages | 36 |
| File size | 1.4 MB |
| Format | |
| Language | English |
Document table of contents
- 0290-07 Intake Valve Actuator #6 not responding (94)
- Conditions Which Generate This Code
- System Response
- Test Step 1. Perform the following diagnostic procedure: Intake Valve Actuator Response – Test
- Intake Valve Actuator Response – Test
- System Operation Description
- System Operation During Engine Start
- System Operation During Engine Operation
- Troubleshooting Procedure
- Diagnostic Codes for Mechanical Problems or for Electrical Problems with the Intake Valve Actuation System
- Engine oil pressure checks with Cat ET and a mechanical pressure gauge
- Intake valve actuation oil pressure sensor test using regulated shop air
- Perform a Leak Test
- Inspection for debris, damaged face seals, and suspect intake valve actuator assembly
Applicable truck models
This document applies to the Product: TRUCK ENGINE, Model: C15 TRUCK ENGINE MXS, Configuration: C15 On-Highway Truck MXS00001-UP. The extract also references typical C11, C13, and C15 engine illustrations for component location and leak-test interpretation, but the listed model coverage is the C15 On-Highway Truck MXS configuration. For brand information, visit Caterpillar official site.
Who needs this IVA troubleshooting DTCs manual
This manual is for diesel mechanics, fleet technicians, and workshop owners diagnosing an active or logged 0290-07 Intake Valve Actuator #6 not responding code on a CAT C15 engine. It is useful when the ECM logs the code, turns on the check engine lamp after more than ten seconds, applies a default torque map, or derates the engine until the fault is repaired and cleared with Caterpillar Electronic Technician.
The procedure explains how the ECM uses rail pressure changes to confirm intake valve actuator response. It identifies the check valve, pressure sensor, control valve, and actuators, then guides the technician through oil pressure comparison, pressure sensor voltage checks, connector handling, leak locations, purge orifice flow, face seal inspection, debris removal, actuator replacement decisions, the Intake Valve Actuator Test, and a loaded road test before returning the vehicle to service. Full PDF available in the DiagTechPro manuals library, free account required to download.
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