Chevrolet 4500 HD 2023 Manual page 134

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Symptom
Oil pressure is low
Not enough engine power
Brakes not effective
Cause
Improper engine oil viscosity
Engine oil level too low
Engine inner components are
faulty
Meter, indicator/warning lights
or switches faulty
Parking brake not fully
released
Brake dragging
Air cleaner clogged
Fuel filter clogged
Engine control system faulty
Common rail system faulty
Engine faulty
DPF clogged
Air in brake fluid
Brake system failure
Driving and Operating
Corrective Action
Change to an oil with proper
viscosity
Add engine oil
Make sure it is fully released
133
Reference
See Engine Oil 0 242
See Engine Oil 0 242
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4500 xd 20235500 hd 20235500 xd 2023

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