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Home >> Volvo >> 2003 >> XC90 T-6 >> Repair and Diagnosis >> Accessories & Equipment >> Exterior Lights >> Electrical - Symptom Related Diagnostic Procedures - 1 Of 2 >> Checking Air Leakage, Combustion PREHEATER Module (CPM) (2003-2014) >> Checking Air Leakage, Combustion PREHEATER Module (CPM) >> Fault-Tracing Information

Fault-Tracing Information

NOTE: This symptom troubleshooting only applies to vehicles with Combustion preheater module (CPM).

If a customer has problems with the fuel heater not working optimally, it may be due to air leakage.

Probable symptoms in case of air leakage:

Use mechanical troubleshooting to search for air leakage, see link below.

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