Campaign - A/C High Side Service Fitting: Overview

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Bulletin
88-POL-3

Date
Jan., '89

Ref. No.
88-269-POL

Corp. Ref. No.


SUBJECT:
AIR CONDITIONING HIGH SIDE SERVICE FITTING

MODELS AFFECTED:
1988 SKYHAWK WITH AIR CONDITIONING


General Motors has determined that some 1988 Skyhawks equipped with air conditioning are missing the high side service fitting. This effects diagnostics of the air conditioning system if service is required.

Buick's concern in this instance is not with the operation of the air conditioning or with any other vehicle system. Rather, this bulletin addresses procedures dealer service technicians will follow when diagnosing random air conditioning complaints in the future.

CONDITION

For 1988 Skyhawk production, the orifice tube in the air conditioning system was moved; however, the High Side Service Fitting was not relocated on early built vehicles with the consequence that both the High Side and Low Side Service Fittings were on the low pressure side of the orifice tube.

If analysis of an air conditioning refrigeration complaint requires reading high side pressure in early built 1988 Skyhawks with 2.0L (VIN Code "K") engines, it will be necessary to replace the Hose Assembly - A/C Compressor and Condenser, with a new assembly, Part Number 22545477. The new assembly incorporates a Shrader-type valve fitting for reading the high side pressure.

SPECIAL-POLICY ADJUSTMENT

General Motors will replace the Hose Assembly - A/C Compressor and Condenser at the time first use of the High Side Service Fitting is required to diagnose an air conditioning refrigeration complaint. This special policy adjustment is effective through the last day of September, 1994.

This "Special Policy" bulletin should be filed in the three ring binder previously furnished to the dealer by General Motors.

VEHICLES INVOLVED

1988 Skyhawk models with Air Conditioning built from the start of 1988 model year production through and including VIN JK418980.