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Diagnostic Aids

WARNING: This page is about a different car, the 2002 Pontiac Montana, 2002 Oldsmobile Silhouette, and 2002 Chevrolet Venture. However, it is still accessible from the selected car via links, so may be relevant.

Noise from a generator may be due to electrical or mechanical noise. Electrical noise (magnetic whine) usually varies with the electrical load placed on the generator and is a normal operating characteristic of all generators. When diagnosing a noisy generator, it is important to remember that loose or misaligned components around the generator may transmit the noise into the passenger compartment and that replacing the generator may not solve the problem.

Fig 1: Generator Noise Diagnosis (1 Of 2)
G01829735Courtesy of GENERAL MOTORS CORP.
Fig 2: Generator Noise Diagnosis (2 Of 2)
G01829736Courtesy of GENERAL MOTORS CORP.
Fig 3: Starter Solenoid Does Not Click (1 Of 3)
G01829737Courtesy of GENERAL MOTORS CORP.
Fig 4: Starter Solenoid Does Not Click (2 Of 3)
G01829738Courtesy of GENERAL MOTORS CORP.
Fig 5: Starter Solenoid Does Not Click (3 Of 3)
G01829739Courtesy of GENERAL MOTORS CORP.
Fig 6: Starter Solenoid Clicks, Engine Does Not Crank (1 Of 2)
G01829740Courtesy of GENERAL MOTORS CORP.
Fig 7: Starter Solenoid Clicks, Engine Does Not Crank (2 Of 2)
G01829741Courtesy of GENERAL MOTORS CORP.
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