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Home >> Chevrolet >> 1992 >> Beretta Base, 2.2 4, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Miscellaneous Controls >> Chart C-12, 2.2L, Cooling Fan >> Diagnostic Aids

Diagnostic Aids

If an overheating condition is suspected, verify if it is due to an actual boilover. If gauge or light indicates an overheat condition and boilover is not evident, inspect gauge circuit for malfunction.

If vehicle is overheating and gauge or light indicates so but cooling fan is not coming on, check coolant sensor temperature using a "Scan" tester. Sensor may have shifted out of calibration and should be replaced. If engine is overheating and cooling fan is on, check cooling system.

Fig 1: Cooling Fan, 2.2L, Schematic
G92A15933Courtesy of GENERAL MOTORS CORP.
Fig 2: Cooling Fan, 2.2L, Flow Chart
G92B15934Courtesy of GENERAL MOTORS CORP.
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