Chevrolet Low Cab Forward 2023 Manual page 127

126 Driving and Operating
Symptom
Oil pressure is low
Air pressure is low
Not enough engine power
Cause
Improper engine oil viscosity
Engine oil level too low
Engine inner components
faulty
Meter, indicator/warning
lights, or switches faulty
Air compressor faulty
Air leaking from pipes and
hoses
Air governor faulty
Parking brake not fully
released
Brake dragging
Air cleaner clogged
Fuel filter clogged
Engine control system faulty
Engine faulty
DPF clogged
Corrective Action
Change to an oil with proper
viscosity
Add engine oil
Make sure it is fully released
Reference
See Engine Oil 0 197
See Engine Oil 0 197
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