Reduced Engine Power, SES Light Illuminated, DTCs P0107 or P0108 Set Due to MAP Sensor Disconnection (Replace Air Cleaner Assembly and Reconnect MAP Sensor Connector)
| Subject: | Reduced Engine Power, SES Light Illuminated, DTCs P0107 or P0108 Set Due to MAP Sensor Disconnection (Replace Air Cleaner Assembly and Reconnect MAP Sensor Connector) |
| Models: | 2006 Chevrolet Kodiak C4500-C5500 Series |
| 2006 GMC TopKick C4500-C5500 Series |
| with 6.6L Diesel Engine (VIN 2 -- RPO LLY) |
Condition
Some customers may comment on reduced engine power along with illumination of the Service Engine Soon (SES) light. Upon investigation, technicians may find Diagnostic Trouble Code (DTCs) P0107 (Manifold Absolute Pressure (MAP) Sensor Circuit Low Voltage) or P0108 (Manifold Absolute Pressure (MAP) Sensor Circuit High Voltage) set. Upon diagnosis, technicians may also notice that the MAP sensor has become disconnected.
Cause
The air cleaner housing may be contacting the Manifold Absolute Pressure (MAP) sensor connector. Engine vibration may cause the air cleaner housing to contact and, over time, disconnect the MAP sensor connector due to the close proximity of the housing to the connector. When this occurs, engine power is reduced and the SES light illuminates.
Correction
A new air cleaner housing has been released that provides additional clearance between the housing and the MAP sensor connector. Replace the air cleaner assembly on affected vehicles. Be sure to reconnect the MAP sensor connector and clear all DTCs. Refer to the Parts Information below.
Refer to the Air Cleaner Assembly Replacement procedure in the Engine Controls-6.6L sub-section of SI.
Parts Information
Part Number | Description |
|---|---|
15901070 | Cleaner Asm - Air (with RPO UPM or UPL) |
15901071 | Cleaner Asm - Air (without RPO UPM or UPL) |
UPL = Indicator-Air Cleaner Restriction (Air Cleaner Mounted) UPM = Gauge-Filterminder Air Cleaner Restriction (Dash Mounted) | |
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation | Description | Labor Time |
|---|---|---|
J5000 | Air Cleaner - Replace | Use Published Labor Operation Time |
