Excessive engine coolant consumption
- Make
- Lancia
- Model
- Thesis Factory Service Manual
- Year
- 2002–2009
- Section
- Consumption / leaks / wear › Excessive engine coolant consumption
Fault diagnosisExcessive engine coolant consumption
EXCESSIVE ENGINE COOLANT CONSUMPTION
The engine coolant consumption is excessive.
| STEP | OPERATIONS TO BE CARRIED OUT | TEST RESULTS | ||
|---|---|---|---|---|
| 0 | PRELIMINARY CHECKS | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
| Carry out a preliminary visual inspection of the cooling system to check that there are no coolant leaks | Move on to Step | Presence of leaks | Continue following the instructions in table X010 Continue following the instructions in the table X10 ENGINE COOLANT LEAKS | |
| 1 | COOLING SYSTEM LEAKAGE TEST | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
| Connect the test equipment replacing the expansion tank cap, pressurize the system and check that the pressure is maintained at the correct value and there are no leaks | Move on to Step | 1. Pressure incorrect without leaks | Move on to Step | |
| 2. Pressure incorrect with leaks | 2. Continue following the instructions in table X010 Continue following the instructions in the table X10 ENGINE COOLANT LEAKS | |||
| 2 | CYLINDER HEAD CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
Remove the head.Check:
| Move on to Step | 1. Cylinder head plane defective | 1. Regrind the cylinder head plane | |
| 2. Cylinder block plane defective | 2. Regring the cylinder block plane | |||
| 3. Planes correct, head gasket faulty | 3. Change the head gasket | |||
| 3 | CHECK ON CORRECT OPERATION | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
| Check that the fault is no longer present | ||||
Parts & tools for this job For 2002 Lancia Thesis
- PARTEngine gasket setSearch: Lancia Thesis 2002 engine gasket set
- TOOLTorque wrenchSearch: 3/8 inch torque wrench
- TOOLFeeler gauge setSearch: feeler gauge set
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