Volvo Symptom D12D US02 Service Manual page 88

Group 20
Check cylinder balance.
Check cylinder compression.
Check start and warm-hold function.
"Step 4: Component and Function Checks" page 85
"Engine Speed Surges Under Load or in Normal
Operating Range" page 73
84
D
Cylinder balancing, Check
Cylinder Compression, Test
Warm-Hold Function, Test