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Geo

Faulty Indicator Lights and Blower Fan Operations

Some 1990 GEO Storm vehicles may exhibit a condition in which more than one of the indicator lights on the instrument panel either remain on after the vehicle is started or do not come on during the bulb check mode prior to start-up. The owner may also comment that the heater/AC blower fan will not operate after the engine is warmed up, or that the blower fan comes on as the key is turned on prior to start-up.

SERVICE INFORMATION:
Affected vehicles are originally equipped with either a Delco or Nippondenso alternator. If alternator replacement is necessary, use the Nippondenso alternator listed under the "Parts Information" section below.

When replacing a Delco alternator with a Nippondenso alternator, the alternator belt must also be replaced. Use the belt listed under the "Parts Information" section below.

SERVICE PROCEDURE:
Contact Olympic for specifications for the Nippondenso alternator.  For alternator and belt removal and replacement procedures, refer to the 1990 GEO Storm Workshop Manual.

NOTE: The instrument panel lamp connector on a Delco alternator, as shown in Figure 2, must be removed with the alternator. This connector is not needed when installing a Nippondenso replacement alternator, because an instrument panel lamp connector is provided on the Nippondenso alternator.

PARTS INFORMATION:
Part # 97027568= Alternator 186-0545
Part # 94137478= Alternator Belt 141-1305
Model: NIPPONDENSO 10211-7050

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