The General Motors 1.6L is a 1.6 L 4-cylinder engine.
Also known as: GM 1.6L
Part of the General Motors 1.6L engine family — 2 variants share parts & fitment.
| Displacement | 1.6 L |
|---|---|
| Cylinders | 4 |
No generator set in our catalog cites this exact engine designation yet; its specifications and fault codes are documented here.
| Code | Meaning | Remedy |
|---|---|---|
| 8 | Low Water Temp LED | |
| 9 | High Engine Temp Pre-alarm LED | |
| 10 | Low Oil Pressure Pre-alarm LED | |
| 11 | Low Fuel LED | Check fuel supply and replenish as required. |
| 12 | Unit Not In Auto LED | Move the AUTO/OFF/MANUAL switch to the AUTO position for automatic starting. |
| 13 | Press To Test Button | |
| 14 | Engine Overheat LED | Reduce load if possible by turning off non-critical loads. Check air inlets and outlets and remove any obstructions to airflow. Open doors or windows in generator area to increase ventilation. |
| 15 | Engine Overheat Shutdown LED | Allow engine to cool down completely before proceeding with the following checks: Check coolant level and replenish if low. Look for possible coolant leakage points and repair if necessary. Check for obstructions to cooling airflow and correct as necessary. Check for a slipping fan belt and tighten if loose. |
| 16 | Low Oil Pressure LED | Check oil level, lines and filters. If the oil system is okay but oil level is low, replenish. |
| 17 | Overcrank LED | Check for empty fuel tank, fuel leaks, or plugged fuel lines and correct as required. Check for dirty fuel filter and replace if necessary (See Maintenance section of Engine Manual). Check for dirty or plugged air filter and replace if necessary (See Maintenance section of Engine Manual). |
| 18 | Engine Over-speed LED | Refer to governor adjust procedure. Contact your Dealer or Distributor for service. |
| 19 | Unit Not In Auto LED | Move the AUTO/OFF/MANUAL switch to the AUTO position for automatic starting. |
| 20 | Low Fuel LED | Check fuel level and replenish as required. See Engine Manual for fuel system priming procedure. |
| 21 | Low Coolant Temperature LED | Check for the following conditions: Coolant heater not connected to power supply. Check for blown fuse, open circuit breaker or disconnected heater cord and correct as required. Check for low-coolant level and replenish if required. Look for possible coolant leakage points and repair as required. |
| 22 | Charger Malfunction LED | Check and repair. Contact Dealer or Distributor for assistance. |
| 23 | Low Battery LED | Check electrolyte level and charger output or replace the battery. |
| 24 | Fault LED on but no fault exists. Engine gauges show oil pressure, engine temperature, and frequency (speed) are within normal limits. | Contact your Dealer or Distributor for service. |
| 25 | Engine Start from Generator Control Panel but will not start automatically or from a remote panel. | Check the following: Check wire to ATS. See ATS section for further troubleshooting. Contact your Dealer or Distributor for assistance. |
| 26 | Engine will not crank. | Check for the following conditions: Fault lamp on. Correct fault and reset control. Poor battery cable connections. Clean the battery cable terminals and tighten all connections. Discharged or defective battery. Recharge or replace the battery. |
| 27 | No AC Output Voltage. | Verify output with another meter if ok check meter, if ok check meter fuses. Regulator fuse is blown. Replace fuse. Contact your Dealer or Distributor if voltage build-up causes fuse to blow. Check rotating rectifier for damaged diodes. Replace all diodes if any are failed. |
| 28 | No Engine Start. | Check Engine Start connections. Investigate why the Engine Control Switch was put in Manual. Contact your Dealer or Distributor for assistance. |
| 29 | No Engine Stop. | Check Engine Start Timer setting. Check Engine Start Connections. Investigate why the Engine Control Switch was put in Manual. Contact your Dealer or Distributor for assistance. |
| 30 | ATS will not transfer to Emergency. | Check Engine Start connections, Generator output, and Engine Control Switch. Plug in Power Supply harness. Plug in Limit Switch harness. Check transfer to Emergency Timer setting. Contact your Dealer or Distributor for assistance. |
| 31 | ATS will not transfer to Normal. | Check Utility and Utility breakers. Plug in Power Supply harness. Plug in Limit Switch harness. Check retransfer to Normal Timer setting. Contact your Dealer or Distributor for assistance. |
| Symptom | Cause | Remedy |
|---|---|---|
| PRE-HI ENGINE TEMP LED. Engine continues to operate | 1. Indicates engine has begun to overheat and engine temperature has risen approximately 215°F (105°C). If generator is powering non-critical and critical loads and cannot be shut down. a. Reduce load if possible by turning off non-critical loads. b. Check air inlets and outlets and remove any obstructions to airflow. c. Open doors or windows in generator area to increase ventilation. 2. If engine can be stopped, follow procedure i in Step 2. | |
| HI ENGINE TEMP LED. Engine shuts down | 1. Indicates engine has overheated (engine temperature has risen above 225°F/110°C) or coolant level is low (sets with coolant level sensor). Allow engine to cool down completely before proceeding with the following: a. Check coolant level and replenish if low. Look for possible coolant leakage points and repair if necessary. b. Check for obstructions to cooling airflow and correct as necessary. c. Check for a slipping fan belt and tighten if loose. d. Reset control and restart after locating and correcting problem. Contact your Dealer or Distributor if none of the above. | |
| PRE LOW OIL PRESSURE LED. Engine continues to operate | 3. Indicates engine oil pressure has dropped to 20 psi (138kPa). If generator is powering critical loads and cannot be shut down, wait until next shutdown period and then follow Step 4 procedure. If engine can be stopped, follow procedures in Step 4. | |
| LOW OIL PRESSURE LED. Engine shuts down | 4. Indicates engine oil pressure has dropped to 15 psi (97kPa). Check oil level, lines and filters. If the oil system is okay, but oil level is low, replenish. Reset control and restart. Contact your Dealer or Distributor if oil pressure is not in the range of 35 to 55 psi (21 to 379 kPa). | |
| OVERCRANK LED. Engine stops cranking | A. Check for empty fuel tank, fuel leaks, or plugged fuel lines and correct as required. b. Check for dirty fuel filter and replace if necessary (See Maintenance section of Engine Manual). c. Check for dirty or plugged air filter and replace if necessary (See Maintenance section of Engine Manual). d. Refer to Step 4. e. Reset the control and restart after correcting the problem. Contact your Dealer or Distributor for service if none of the above. | |
| Engine runs and then shuts down, OVERSPEED LED | Indicates engine has exceeded normal operating speed. Refer to governor adjust procedure. Contact your Dealer or Distributor for service. | |
| UNIT NOT IN AUTO LED | 7. Indicates AUTO/OFF/MANUAL switch is in the OFF position which will prevent automatic starting if an automatic transfer switch is used. Move the AUTO/OFF/MANUAL switch to the AUTO position for automatic starting. | |
| LOW FUEL LED. Engine continues to run | 8. Indicates diesel fuel supply is running low. Check fuel supply and replenish as required. | |
| LOW FUEL LED. Engine shuts down and LOW OIL PRESSURE LED | 9. Indicates engine has run out of fuel. Check fuel level and replenish as required. See Engine Manual for fuel system priming procedure. | |
| LOW ENGINE TEMPERATURE LED. Set is in standby mode but not operating | 10. Indicates engine coolant heater is not operating or is not circulating coolant. Check for the following: | |
| Low Water Temp LED indicates that the coolant temperature has reached 50°F. | Possible problem with the jacket water heater. | |
| Blown Fuse on Shorted leads when hooking up or overloaded circuits. | Replace fuse with 9 amp fuse | |
| Low Battery Voltage at Start | Check for voltage source. There should be no voltage present. | |
| Terminal #5 Unused Terminal not connected to KASSEC Terminal #9, ground. | Connect Terminal #5 when in use or it may prevent unit from starting. | |
| UNIT KS Voltage on Terminal #2 while Unit does not start. | Check for voltage source. There should be no voltage present. | |
| Overcrank light-lit | Lost signal on Mag Pickup Crank Disconnect Terminal or lost signal on Auxiliary Crank Disconnect terminal after unit started. | |
| Low Oil light lit | Low oil in crankcase. Oil pump failed. Defective pressure switch. | |
| UNIT WILL START THEN FAIL High Water Temperature light lit | Low water level in radiator. Thermostat closed. Broken fan belt. Restricted flow through radiator. Ambient temperature too high. Defective temperature switch. | |
| Overspeed light lit | Lost governor control. Defective overspeed switch. | |
| Unit Running but Starter does not disengage | Starter drive could be hanging up or the solenoid on starter is not disengaging. |
Fault codes and symptom→remedy steps extracted from this engine’s service/owner documentation; verify against the official manual before servicing.
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | ELEMENT, FLTR, PRIMARY (air) | 3321143 | Amazon eBay | ||
| Fuel filter | FILTER, FUEL | 3342209 | Amazon eBay | ||
| Oil filter | FILTER, OIL (AC-DELCO) | 3342201 | Amazon $33.78 eBay $152.14 | ||
| Belt | BELT, GM 1.6L FAN POLY 6-V 39 in | 3343634 | Amazon eBay |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
| Part # | Description | Category |
|---|---|---|
| 3317917 | HOUSING, AIR FLTR | air_filter |
| 3321143 | ELEMENT, FLTR, PRIMARY (air) | air_filter |
| 3322572 | ELEMENT, FLTR, SAFETY (air) | air_filter |
| 3343633 | ALTERNATOR, GM 1.6L 7SI | alternator |
| 3338710 | TENSIONER, TIMING BELT | belt |
| 3342385 | BELT, TIMING (111 TEETH) | belt |
| 3343634 | BELT, GM 1.6L FAN POLY 6-V 39 in | belt |
| 3342209 | FILTER, FUEL | fuel_filter |
| 3333656 | GASKET, EXHAUST | gasket |
| 3337396 | GASKET, OIL PUMP | gasket |
| 3338758 | GASKET, OIL PAN | gasket |
| 3338789 | GASKET, OIL PRESSURE RELIEF VALVE BORE PLUG | gasket |
| 3339834 | GASKET, 4 BOLT THROTTLE BODY | gasket |
| 3339837 | GASKET, INTAKE MANIFOLD/ADAPTER | gasket |
| 3339846 | GASKET, ADAPTER | gasket |
| 3342331 | GASKET, PCV TUBE | gasket |
| 3342356 | GASKET, CAMSHAFT HOUSING COVER | gasket |
| 3342365 | GASKET KIT, CYLINDER HEAD | gasket |
| 3343069 | GASKET, EXHAUST RING | gasket |
| 3343652 | GASKET, EXHAUST MANIFOLD | gasket |
| 3343654 | GASKET, INTAKE MANIFOLD | gasket |
| 3401090 | FITTING & GASKET FOR FUEL PUMP | gasket |
| 3339832 | HOSE, VACUUM 7/32 in | hose |
| 3339839 | HOSE, BREATHER | hose |
| 3339848 | HOSE, FUEL 3/8 DIA | hose |
| 3339856 | HOSE, MOLDED FUEL | hose |
| 3339857 | HOSE, MOLDED FUEL #2 | hose |
| 3341793 | HOSE, ENG OUTLET | hose |
| 3343669 | HOSE, PCV | hose |
| 3500656 | HOSE, WATER, .75 ID | hose |
| 600510 | RADIATOR HOSE, LOWER | hose |
| 600580 | HOSE, 2.00 X 2.50 (air intake) | hose |
| 600812 | HOSE, RADIATOR, UPPER, ATLAS | hose |
| 620001 | HOSE, FUEL, 5/16 ID X 12.00 LG, SAE30R7 | hose |
| 620002 | HOSE, FUEL, 5/16 ID X 10.00 LG, SAE30R7 | hose |
| 620003 | HOSE, FUEL, 5/16 ID X 17.00 LG, SAE30R7 | hose |
| 620004 | HOSE, FUEL, 5/16 ID X 36.00 LG, SAE30R7 | hose |
| 3338767 | VALVE, OIL FILTER BYPASS | oil_filter |
| 3342201 | FILTER, OIL (AC-DELCO) | oil_filter |
| 3343655 | FITTING, OIL FILTER | oil_filter |
| 3318752 | OVERFLOW BOTTLE KIT | other_service |
| 3336679-1 | RADIATOR - OIL COOLER | other_service |
| 3338701 | ADJUSTER, HYDRAULIC VALVE LASH | other_service |
| 3338702 | SPRING, VALVE (INTAKE AND EXHAUST) | other_service |
| 3338733 | RING KIT, PISTON (STD) | other_service |
| 3338735 | BEARING KIT, CONNECTING ROD (STD) | other_service |
| 3339849 | VALVE, LOCK-OFF (LPG) | other_service |
| 3339858 | REGULATOR, ELECTRONIC PRESSURE (EPR) | other_service |
| 3339870 | MIXER, CERTIFIED (LPG) | other_service |
| 3342304 | FAN, PUSHER 16 in GM 1.6L | other_service |
| 3342379 | VALVE, EXHAUST | other_service |
| 3342380 | VALVE, INTAKE | other_service |
| 3342408 | COIL, IGNITION | other_service |
| 3343413 | CAP, FUEL TANK | other_service |
| 3343611 | PULLEY FOR FAN, GM 1.6L | other_service |
| 3343627 | THROTTLE BODY, GM 1.6L BOSCH 40 | other_service |
| 3343651 | PLUG, OIL PAN DRAIN | other_service |
| 3350056 | MUFFLER - CONVERTER | other_service |
| 3338775 | PUMP, OIL | pump |
| 3338793 | SCREEN, OIL PUMP | pump |
| 3343536 | PUMP, FUEL | pump |
| 3343668 | PUMP KIT, WATER (GM 1.6) | pump |
| 3337019 | SEAL, #10 (fuel tank) | seal |
| 3337398 | SEAL, OIL PUMP | seal |
| 3338688 | SEAL, OIL FILLER CAP | seal |
| 3338773 | SEAL, WATER PUMP COVER | seal |
| 3338777 | SEAL, OIL PAN DRAIN PLUG | seal |
| 3339862 | SEAL, QUAD MXR ADAPTER 40MM/100 | seal |
| 3342329 | SEAL, OIL PUMP HOUSING | seal |
| 3342352 | CAP, OIL FILLER (INCLUDES SEAL 3338688) | seal |
| 3342361 | SEAL, CAMSHAFT | seal |
| 3342364 | SEAL, CAMSHAFT HOUSING COVER BOLT | seal |
| 3343659 | SEAL, CRANKSHAFT REAR OIL | seal |
| 3343670 | SEAL, VALVE STEM OIL | seal |
| 3303991 | INDICATOR, FLTR SERVICE | sensor |
| 3339836 | SENSOR-T MAP | sensor |
| 3341069 | SENDER, OIL PRESSURE 12V | sensor |
| 3342351 | SENSOR, CRANKSHAFT POSN | sensor |
| 3343629 | SENSOR, O2 @ MANIFOLD | sensor |
| 3343630 | SENSOR, O2 POST CAT | sensor |
| 3343661 | SWITCH, ENG OIL PRESSURE INDICATOR | sensor |
| 600179 | SENDING UNIT, FUEL LEVEL | sensor |
| 3342409 | SPARK PLUG | spark_plug |
| 3342410 | WIRE, SPARK PLUG CYLINDER #1 (435MM) | spark_plug |
| 3342411 | WIRE, SPARK PLUG CYLINDER #2 (365MM) | spark_plug |
| 3342412 | WIRE, SPARK PLUG CYLINDER #3 (275MM) | spark_plug |
| 3342413 | WIRE, SPARK PLUG CYLINDER #4 (185MM) | spark_plug |
| 3336742 | STARTER (DELCO TYPE), after S/N 1P6L1315 | starter |
| 3342333 | STARTER (BOSCH TYPE), before S/N 1P6L1315 | starter |
| 3338713 | THERMOSTAT | thermostat |
Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.
The General Motors 1.6L has a displacement of 1.6 liters with 4 cylinders.