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Home›Engines›General Motors 5.7L LPG and CNG Injected Engines

General Motors 5.7L LPG and CNG Injected Engines Engine

The General Motors 5.7L LPG and CNG Injected Engines is a 2.7 L engine. It powers generator sets from General Motors and Kem/Power Engines, including the 5.7L LPG and CNG Injected Mobile Alternative Fueled Engines and Base Engine Assembly.

Also known as: GM Powertrain 5.7L LPG and CNG Injected Engines

2.7 L
Displacement
On this pageSpecsGenerator setsMaintenanceFAQ

Engine specifications

Displacement2.7 L

Generator sets powered by this engine

2

Shared across brands: General Motors, Kem/Power Engines

General Motors 5.7L LPG and CNG Injected Mobile Alternative Fueled EnginesKem/Power Engines Base Engine Assembly

Common problems

3
  • The Malfunction Indicator Light (MIL) is illuminated
    Fix: Stop the engine operation immediately and retrieve the fault code using a diagnostic scan tool. Address the issue promptly to avoid potential damage to engine components.
  • MIL illuminating
    Cause: Sensor output and/or conditions that adversely affect the emissions output of the engine. Some components include: crank sensor, cam sensor, fuel injectors, regulators, O2 sensors (pre or post), ignition system and MAP sensor.
    Fix: Connect a scan tool to determine the cause, repair the problem, clear the codes.
  • Check Engine light
    Cause: Non-emissions related issues such as high or low oil pressure and coolant temperature, various power relays operation, system voltage etc.
    Fix: Read and clear the fault code before continuing vehicle operation (after repairing the root problem). Check gauges for oil pressure and coolant temperature immediately.

Compiled from service & troubleshooting documentation across every generator set that uses the General Motors 5.7L LPG and CNG Injected Engines.

Maintenance schedule

ItemSpecCapacityPart #Interval
Air filterService the air cleaner more frequently under severely dusty or dirty conditions.—
Fuel filter—750 hr
Oil filterevery 1000 hours or 6 monthsPF-251000 hr Amazon eBay $475.00
BatteryCheck battery condition and cables frequently.—3000 hr
Belt—2000 hr
Coolant—
Oilevery 1250 hours or 8 months6.0 qts—1250 hr
Spark plug41-9932000 hr Amazon eBay $13.48

Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.

Common questions

What is the displacement of the General Motors 5.7L LPG and CNG Injected Engines?

The General Motors 5.7L LPG and CNG Injected Engines has a displacement of 2.7 liters.

Which generators use the General Motors 5.7L LPG and CNG Injected Engines engine?

The General Motors 5.7L LPG and CNG Injected Engines powers 2 generator set(s), including General Motors 5.7L LPG and CNG Injected Mobile Alternative Fueled Engines, Kem/Power Engines Base Engine Assembly.

How often should you change the oil in the General Motors 5.7L LPG and CNG Injected Engines?

The General Motors 5.7L LPG and CNG Injected Engines oil change interval is every 1250 hours.

What is a common problem with the General Motors 5.7L LPG and CNG Injected Engines engine?

A commonly reported issue on generators using the General Motors 5.7L LPG and CNG Injected Engines is: The Malfunction Indicator Light (MIL) is illuminated. Fix: Stop the engine operation immediately and retrieve the fault code using a diagnostic scan tool. Address the issue promptly to avoid potential damage to engine components..