2582498 - S10 ENGINE WHILSTLING / SERVICES BELT NOISY'

There is buzzing (low frequency noise) coming from the engine, whose intensity varies with the number of revs
Results of the tests
0PRELIMINARY CHECKSAll OKProblems metOperation
1.2 8vCheck the condition of the auxiliary shaft drive belt and check that the tension is correct.Check that, as the electrical loads engaged increase, the whistling remains constantContinue to Step 2Belt worn.Replace the belt Op.   1092B60 
Tension incorrectAdjust belt tension Op.   1092B64 
The whistling noise increases.Continue to Step 1
2CHECKING ENGINE EXHAUSTAll OKProblems metOperation

Check the engine exhaust system and, in particular:

  • Piping
  • Exhaust silencers
  • Catalytic converter gaskets
Continue to Step 3Pipe damagedReplace the pipe
Rear silencer damagedReplace the silencer Op.   1076B20 
Gasket worn or damagedReplace the gasket
3CHECKING CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer presentFault persistsSearch for the fault starting from another symptom'
There is buzzing (low frequency noise) coming from the engine, whose intensity varies with the number of revs
Results of the tests
0PRELIMINARY CHECKSAll OKProblems metOperation
1.9 DIESELCheck the condition of the auxiliary shaft drive belt and check that the tension is correct.Check that, as the electrical loads engaged increase, the whistling remains constantContinue to Step 2Belt worn.Replace the belt Op.   1092G10 
The whistling noise increases.Continue to Step 1
1CHECKING ALTERNATORAll OKProblems metOperation

Check the alternator is working properly in particular:

Continue to Step 2Defective voltage regulatorReplace the alternator Op.   5530A10 
Connections not correctRestore connections
1.9 DIESEL

Check the alternator is working properly in particular:

Continue to Step 2Defective voltage regulatorReplace the alternator Op.   5530A14 
Connections not correctRestore connections
2CHECKING AUXILIARY DRIVE BELTAll OKProblems metOperation
Check whether the whistling disappears when the belt is disconnected.
Do not let the engine run for long with the belt disconnected
Continue to Step 6The whistling remains constantContinue to Step 4
1.9 DIESELCheck whether the whistling disappears when the belt is disconnected.
Do not let the engine run for long with the belt disconnected
Continue to Step 3The whistling remains constantContinue to Step 4
3CHECKING AIR CONDITIONER COMPRESSORAll OKProblems metOperation
1.9 DIESELCheck the air conditioner air conditioner compressor is working properly.Continue to Step 6Air conditioning compressor faultyRepair the air conditioner compressor Op.   5040A20 
4CHECKING BELT TENSIONAll OKProblems metOperation
Check the condition of the belt tensioner bearingsContinue to Step 5Belt tensioner faultyReplace the belt tensioner Op.   1092B82 
5WATER PUMP CHECKAll OKProblems metOperation
Check the condition of the water pumpContinue to Step 6Water pump faultyReplace the water pump Op.   1088C10 
6CHECKING CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer presentFault persistsSearch for the fault starting from another symptom'