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• Engine Controls - Tests W/codes - 5.7l
• Engine Controls - Tests W/codes - 6.5l Diesel
• Engine Controls - Tests W/codes - 7.4l
• Engine Performance
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Repair manual

Engine Controls - Tests W/codes - 6.5l Diesel GMC Suburban I

Step-by-step instructions on "Engine Controls - Tests W/codes - 6.5l Diesel" for GMC Suburban I (1992–1999). Pick an article — removal, installation, adjustment and diagnostics with illustrations.

88subsections

88articles

112illustrations

INTRODUCTION

1 article

• INTRODUCTION

SELF-DIAGNOSTIC SYSTEM

1 article

• SELF-DIAGNOSTIC SYSTEM

Preliminary Inspection

1 article

• Preliminary Inspection

Diagnostic Procedure

1 article

• Diagnostic Procedure

ENTERING & EXITING DIAGNOSTIC MODE

1 article

• ENTERING & EXITING DIAGNOSTIC MODE 1

TROUBLE CODE IDENTIFICATION

1 article

• TROUBLE CODE IDENTIFICATION

CLEARING TROUBLE CODES

1 article

• CLEARING TROUBLE CODES

PCM/TCM LOCATION

1 article

• PCM/TCM LOCATION

SPECIAL TOOLS (DIAGNOSTIC)

1 article

• SPECIAL TOOLS (DIAGNOSTIC)

SCAN TESTER USAGE

1 article

• SCAN TESTER USAGE

TYPICAL TECH 1 DATA VALUES

1 article

• TYPICAL TECH 1 DATA VALUES

TEST EQUIPMENT

1 article

• TEST EQUIPMENT

DIAGNOSTIC TROUBLE CODE CHARTS

1 article

• DIAGNOSTIC TROUBLE CODE CHARTS

ON-BOARD DIAGNOSTIC (OBD) SYSTEM CHECK (MODELS WITH PCM)

1 article

• ON-BOARD DIAGNOSTIC (OBD) SYSTEM CHECK (MODELS WITH PCM) 2

CHART A-1, NO MIL (SERVICE ENGINE SOON LIGHT) (MODELS W/ PCM)

1 article

• CHART A-1, NO MIL (SERVICE ENGINE SOON LIGHT) (MODELS W/ PCM)

Diagnostic Aids

1 article

• Diagnostic Aids 1

CHART A-2, NO SCAN DATA, MIL (SERVICE ENGINE SOON) ON AT ALL TIMES OR WILL NOT FLASH MIL (MODELS WITH PCM)

1 article

• CHART A-2, NO SCAN DATA, MIL (SERVICE ENGINE SOON) ON AT ALL TIMES OR WILL NOT FLASH MIL (MODELS WITH PCM) 1

CHART A-3, ENGINE CRANKS BUT WILL NOT RUN

1 article

• CHART A-3, ENGINE CRANKS BUT WILL NOT RUN 2

EGR CONTROL PRESSURE/BARO SENSOR OUTPUT CHECK

1 article

• EGR CONTROL PRESSURE/BARO SENSOR OUTPUT CHECK 2

DTC 13, ENGINE SHUTOFF SOLENOID CIRCUIT FAULT

1 article

• DTC 13, ENGINE SHUTOFF SOLENOID CIRCUIT FAULT 2

DTC 14, ECT SENSOR CIRCUIT LOW (HIGH TEMPERATURE INDICATED)

1 article

• DTC 14, ECT SENSOR CIRCUIT LOW (HIGH TEMPERATURE INDICATED) 2

DTC 15, ECT SENSOR CIRCUIT HIGH (LOW TEMPERATURE INDICATED)

1 article

• DTC 15, ECT SENSOR CIRCUIT HIGH (LOW TEMPERATURE INDICATED) 1

DTC 16, VEHICLE SPEED SIGNAL BUFFER FAULT

1 article

• DTC 16, VEHICLE SPEED SIGNAL BUFFER FAULT 2

DTC 17, HIGH RESOLUTION CIRCUIT FAULT

1 article

• DTC 17, HIGH RESOLUTION CIRCUIT FAULT 2

DTC 18, PUMP CAM REFERENCE PULSE ERROR

1 article

• DTC 18, PUMP CAM REFERENCE PULSE ERROR 1

DTC 19, CRANKSHAFT POSITION REFERENCE ERROR

1 article

• DTC 19, CRANKSHAFT POSITION REFERENCE ERROR 2

DTC 21, APP NO. 1 CIRCUIT HIGH (MODELS WITH PCM)

1 article

• DTC 21, APP NO. 1 CIRCUIT HIGH (MODELS WITH PCM) 2

DTC 22, APP NO. 1 CIRCUIT LOW (MODELS WITH PCM)

1 article

• DTC 22, APP NO. 1 CIRCUIT LOW (MODELS WITH PCM) 1

DTC 23, APP NO. 1 CIRCUIT RANGE FAULT

1 article

• DTC 23, APP NO. 1 CIRCUIT RANGE FAULT 1

DTC 24, VSS CIRCUIT LOW (TRANSMISSION OUTPUT SPEED SIGNAL)

1 article

• DTC 24, VSS CIRCUIT LOW (TRANSMISSION OUTPUT SPEED SIGNAL) 3

DTC 25, ACCELERATOR PEDAL POSITION (APP) NO. 2 CIRCUIT HIGH

1 article

• DTC 25, ACCELERATOR PEDAL POSITION (APP) NO. 2 CIRCUIT HIGH 1

DTC 26, ACCELERATOR PEDAL POSITION (APP) NO. 2 CIRCUIT LOW

1 article

• DTC 26, ACCELERATOR PEDAL POSITION (APP) NO. 2 CIRCUIT LOW 1

DTC 27, APP NO. 2 CIRCUIT RANGE FAULT

1 article

• DTC 27, APP NO. 2 CIRCUIT RANGE FAULT 1

DTC 28, TRANSMISSION RANGE PRESSURE SWITCH CIRCUIT FAULT

1 article

• DTC 28, TRANSMISSION RANGE PRESSURE SWITCH CIRCUIT FAULT

TRANSMISSION RANGE PRESSURE SWITCH COMBINATIONS

1 article

• TRANSMISSION RANGE PRESSURE SWITCH COMBINATIONS 3

DTC 29, GLOW PLUG RELAY CIRCUIT FAULT

1 article

• DTC 29, GLOW PLUG RELAY CIRCUIT FAULT 2

DTC 31, EGR CONTROL PRESSURE/BARO SENSOR CKT LOW (HIGH VAC)

1 article

• DTC 31, EGR CONTROL PRESSURE/BARO SENSOR CKT LOW (HIGH VAC) 1

DTC 32, EGR CIRCUIT ERROR

1 article

• DTC 32, EGR CIRCUIT ERROR 2

DTC 33, EGR CONTROL PRESSURE/BARO SENSOR CKT HIGH (LOW VAC)

1 article

• DTC 33, EGR CONTROL PRESSURE/BARO SENSOR CKT HIGH (LOW VAC) 1

DTC 34, INJECTION TIMING STEPPER (ITS) MOTOR CIRCUIT FAULT

1 article

• DTC 34, INJECTION TIMING STEPPER (ITS) MOTOR CIRCUIT FAULT 2

DTC 35, INJECTION PULSE WIDTH ERROR (RESPONSE TIME SHORT)

1 article

• DTC 35, INJECTION PULSE WIDTH ERROR (RESPONSE TIME SHORT) 1

DTC 36, INJECTION PULSE WIDTH ERROR (RESPONSE TIME LONG)

1 article

• DTC 36, INJECTION PULSE WIDTH ERROR (RESPONSE TIME LONG) 1

DTCS 37/38, TCC BRAKE SWITCH STUCK ON/OFF

1 article

• DTCS 37/38, TCC BRAKE SWITCH STUCK ON/OFF 2

DTC 39, TCC STUCK OFF (4L80-E)

1 article

• DTC 39, TCC STUCK OFF (4L80-E) 2

DTC 41, BRAKE SWITCH CIRCUIT FAULT

1 article

• DTC 41, BRAKE SWITCH CIRCUIT FAULT 2

DTC 42, FUEL TEMP CIRCUIT LOW (HIGH TEMP INDICATED)

1 article

• DTC 42, FUEL TEMP CIRCUIT LOW (HIGH TEMP INDICATED) 1

DTC 43, FUEL TEMP CIRCUIT HIGH (LOW TEMP INDICATED)

1 article

• DTC 43, FUEL TEMP CIRCUIT HIGH (LOW TEMP INDICATED) 1

DTC 44, EGR PULSE WIDTH ERROR

1 article

• DTC 44, EGR PULSE WIDTH ERROR 2

DTC 45, EGR VENT ERROR

1 article

• DTC 45, EGR VENT ERROR 1

DTC 46, MALFUNCTION INDICATOR LIGHT (MIL) CIRCUIT FAULT

1 article

• DTC 46, MALFUNCTION INDICATOR LIGHT (MIL) CIRCUIT FAULT 2

DTC 47, IAT SENSOR CIRCUIT LOW (HIGH TEMPERATURE INDICATED)

1 article

• DTC 47, IAT SENSOR CIRCUIT LOW (HIGH TEMPERATURE INDICATED) 1

DTC 48, IAT SENSOR CIRCUIT HIGH (LOW TEMPERATURE INDICATED)

1 article

• DTC 48, IAT SENSOR CIRCUIT HIGH (LOW TEMPERATURE INDICATED) 1

DTC 49, SERVICE THROTTLE SOON LIGHT CIRCUIT FAULT

1 article

• DTC 49, SERVICE THROTTLE SOON LIGHT CIRCUIT FAULT 1

DTC 51, PROM PROBLEM (FAULTY OR INCORRECT PROM)

1 article

• DTC 51, PROM PROBLEM (FAULTY OR INCORRECT PROM)

DTCS 52/53, SYSTEM VOLTAGE HIGH LONG

1 article

• DTCS 52/53, SYSTEM VOLTAGE HIGH LONG 2

DTC 54, PCM FUEL CIRCUIT ERROR

1 article

• DTC 54, PCM FUEL CIRCUIT ERROR

DTC 56, INJECTION PUMP CALIBRATION RESISTOR ERROR

1 article

• DTC 56, INJECTION PUMP CALIBRATION RESISTOR ERROR 1

DTC 57, PCM 5-VOLT SHORTED

1 article

• DTC 57, PCM 5-VOLT SHORTED 2

DTC 58, TRANSMISSION FLUID TEMP SENSOR CIRCUIT LOW (HIGH TEMP INDICATED) - 4L60-E & 4L80-E

1 article

• DTC 58, TRANSMISSION FLUID TEMP SENSOR CIRCUIT LOW (HIGH TEMP INDICATED) - 4L60-E & 4L80-E 2

DTC 59, TRANSMISSION FLUID TEMP SENSOR CIRCUIT HIGH (LOW TEMP INDICATED) - 4L60-E & 4L80-E

1 article

• DTC 59, TRANSMISSION FLUID TEMP SENSOR CIRCUIT HIGH (LOW TEMP INDICATED) - 4L60-E & 4L80-E 1

DTC 61, TURBO BOOST SENSOR CIRCUIT HIGH

1 article

• DTC 61, TURBO BOOST SENSOR CIRCUIT HIGH 1

DTC 62, TURBO BOOST SENSOR CIRCUIT LOW

1 article

• DTC 62, TURBO BOOST SENSOR CIRCUIT LOW 1

DTC 63, APP NO. 3 CIRCUIT HIGH (MODELS WITH PCM)

1 article

• DTC 63, APP NO. 3 CIRCUIT HIGH (MODELS WITH PCM) 1

DTC 64, APP NO. 3 CIRCUIT LOW (MODELS WITH PCM)

1 article

• DTC 64, APP NO. 3 CIRCUIT LOW (MODELS WITH PCM) 1

DTC 65, APP NO. 3 CIRCUIT RANGE FAULT

1 article

• DTC 65, APP NO. 3 CIRCUIT RANGE FAULT

DTC 66, 3-2 CONTROL SOLENOID CIRCUIT FAULT (4L60-E)

1 article

• DTC 66, 3-2 CONTROL SOLENOID CIRCUIT FAULT (4L60-E) 2

DTC 67, TCC SOLENOID CIRCUIT FAULT (4L60-E)

1 article

• DTC 67, TCC SOLENOID CIRCUIT FAULT (4L60-E) 2

DTC 68, TRANSMISSION COMPONENT SLIPPING (4L80-E)

1 article

• DTC 68, TRANSMISSION COMPONENT SLIPPING (4L80-E) 1

DTC 69, TCC STUCK ON (4L60-E)

1 article

• DTC 69, TCC STUCK ON (4L60-E) 2

DTC 69, TCC STUCK ON (4L80-E)

1 article

• DTC 69, TCC STUCK ON (4L80-E) 1

DTC 71, SET/COAST SWITCH FAULT (MODELS WITH PCM)

1 article

• DTC 71, SET/COAST SWITCH FAULT (MODELS WITH PCM) 2

DTC 72, SPEED SENSOR CIRCUIT LOSS (TRANS OUTPUT SPEED SIGNAL) - 4L60-E & 4L80-E

1 article

• DTC 72, SPEED SENSOR CIRCUIT LOSS (TRANS OUTPUT SPEED SIGNAL) - 4L60-E & 4L80-E 1

DTC 73, PRESSURE CONTROL SOLENOID CIRCUIT (CURRENT ERROR)

1 article

• DTC 73, PRESSURE CONTROL SOLENOID CIRCUIT (CURRENT ERROR) 2

DTC 74, TRANSMISSION INPUT SPEED SENSOR CIRCUIT (4L80-E)

1 article

• DTC 74, TRANSMISSION INPUT SPEED SENSOR CIRCUIT (4L80-E) 2

DTC 75, SYSTEM VOLTAGE LOW

1 article

• DTC 75, SYSTEM VOLTAGE LOW 1

DTC 76, RESUME/ACCEL SWITCH FAULT

1 article

• DTC 76, RESUME/ACCEL SWITCH FAULT 1

DTC 78, WASTEGATE SOLENOID FAULT

1 article

• DTC 78, WASTEGATE SOLENOID FAULT 1

DTC 79, TRANSMISSION FLUID OVERTEMP - 4L60-E & 4L80-E

1 article

• DTC 79, TRANSMISSION FLUID OVERTEMP - 4L60-E & 4L80-E 1

DTC 81, 2-3 SHIFT SOLENOID CIRCUIT FAULT - 4L60-E & 4L80-E

1 article

• DTC 81, 2-3 SHIFT SOLENOID CIRCUIT FAULT - 4L60-E & 4L80-E 3

DTC 82, 1-2 SHIFT SOLENOID CIRCUIT FAULT - 4L60-E & 4L80-E

1 article

• DTC 82, 1-2 SHIFT SOLENOID CIRCUIT FAULT - 4L60-E & 4L80-E 3

DTC 83, TCC PWM SOLENOID CIRCUIT FAULT - 4L60-E & 4L80-E

1 article

• DTC 83, TCC PWM SOLENOID CIRCUIT FAULT - 4L60-E & 4L80-E 2

DTC 84, ACCELERATOR PEDAL POSITION (APP) CIRCUIT FAULT

1 article

• DTC 84, ACCELERATOR PEDAL POSITION (APP) CIRCUIT FAULT 1

DTC 85, UNDEFINED RATIO ERROR (4L80-E)

1 article

• DTC 85, UNDEFINED RATIO ERROR (4L80-E) 2

DTC 86, LOW RATIO ERROR (4L80-E)

1 article

• DTC 86, LOW RATIO ERROR (4L80-E) 1

DTC 87, HIGH RATIO ERROR (4L80-E)

1 article

• DTC 87, HIGH RATIO ERROR (4L80-E) 1

DTC 88, TDC OFFSET ERROR

1 article

• DTC 88, TDC OFFSET ERROR

DTC'S 91-98, CYLINDER BALANCE FAULT

1 article

• DTC'S 91-98, CYLINDER BALANCE FAULT 1

DTC 99, APP NO. 2 (5-VOLT REFERENCE FAULT)

1 article

• DTC 99, APP NO. 2 (5-VOLT REFERENCE FAULT) 7