Category Archives: GM 6.5

GM/Detroit 6.5L ENGINE CONTROLS – Air Cleaner Element Replacement

Removal Procedure 1. Loosen the clamp and separate the air cleaner inlet elbow from the turbocharger inlet elbow. 2. Release the clips holding the air cleaner cover to the housing. 3. Remove the MAF sensor electrical connector (L56 only). 4. Remove the air cleaner filter with air inlet elbow attached. 5. Separate the air inlet… Read More »

GM/Detroit 6.5L ENGINE CONTROLS – CDR Valve and Hoses Replacement

Removal Procedure Important: The crankcase depression regulator valve (1) is replaced as an assembly. Replace the hoses (3), pipes (3) and grommet (4) as required, if the inspection indicates any cracks or decay. Refer to the appropriate service information for diesel crankcase ventilation system maintenance requirements. 1. Remove the clamp (2) at the CDR valve… Read More »

GM/Detroit 6.5L ENGINE CONTROLS – Wastegate Solenoid Replacement

Removal Procedure 1. Remove negative battery cables. 2. Remove the electrical connector from the solenoid. 3. Remove the vacuum hoses. 4. Remove the solenoid mounting bolt 5. Remove the wastegate solenoid. Installation Procedure 1. Install the wastegate solenoid. 2. Install the wastegate mounting bolt. 3. Install the vacuum hoses. 4. Install the electrical connector. 5.… Read More »

GM/Detroit 6.5L ENGINE CONTROLS – Boost Sensor Replacement

Removal Procedure 1. Remove negative battery cables. 2. Remove the electrical connector. 3. Remove the mounting bolts. 4. Remove the sensor. Installation Procedure 1. Install the port gasket on sensor. 2. Install the sensor. Notice : Refer to Fastener Notice in Cautions and Notices. 3. Install the mounting bolts. Tighten Tighten the mounting bolts to… Read More »

GM/Detroit 6.5L ENGINE CONTROLS – EGR Control Pressure Sensor Replacement

Removal Procedure 1. Remove negative battery cables. 2. Remove the vacuum harness assembly. 3. Remove the electrical connector. 4. Remove the mounting bolts. 5. Remove the sensor. Installation Procedure Notice : Refer to Fastener Notice in Cautions and Notices. 1. Install the mounting bolts with the sensor. Tighten Tighten the mounting bolts to 3.5 N-m… Read More »

GM/Detroit 6.5L ENGINE CONTROLS – EGR Vent Solenoid Replacement

Removal Procedure 1. Remove the negative battery cables. 2. Remove the electrical connector from the solenoid. 3. Remove the vacuum hoses. 4. Remove the EGR Vent solenoid mounting bolt (2). 5. Remove the EGR vent solenoid (1). Installation Procedure 1. Install the EGR vent solenoid (1). Notice : Refer to Fastener Notice in Cautions and… Read More »

GM/Detroit 6.5L ENGINE CONTROLS – EGR Solenoid Replacement

Removal Procedure 1. Remove the negative battery cables. 2. Remove the electrical connector from the solenoid. 3. Remove the vacuum hoses. 4. Remove EGR Solenoid mounting bolt (2). 5. Remove the EGR solenoid (1). Installation Procedure 1. Install the EGR solenoid (1). Notice : Refer to Fastener Notice in Cautions and Notices. 2. Install mounting… Read More »