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A/C SYSTEM GENERAL DIAGNOSTIC PROCEDURES Article Text 1989 Volkswagen Golf For Volkswagen Technical Site Copyright © 1998 Mitchell Repair Information Company, LLC Monday, August 23, 1999 11:35PM ARTICLE BEGINNING 1983-90 AIR CONDITIONING & HEAT General Servicing Diagnostic Procedures All Import Makes & Models Diagnosis is an important first step in A/C system servicing. To save time and effort, systems should be carefully checked to identify the causes of poor performance. By using the following diagnostic charts, defective components or system damage can be quickly located. To identify problems that are specific to one system, refer to the repair section of this manual. The charts in this section apply to all systems. ALTITUDE PRESSURE VARIATIONS ALTITUDE PRESSURE VARIATIONS TABLE ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Altitude Absolute Gauge Altitude (Ft. Above Pressure of Correction Sea Level) Atmosphere (psi) (1) (psi) 0 ........................... 14.7 ............................. 0 1000 ........................ 14.2 .......................... -0.5 2000 ........................ 13.7 .......................... -1.0 3000 ........................ 13.2 .......................... -1.5 4000 ........................ 12.7 .......................... -2.0 5000 ........................ 12.2 .......................... -2.5 6000 ........................ 11.7 .......................... -3.0 7000 ........................ 11.3 .......................... -3.4 8000 ........................ 10.9 .......................... -3.8 9000 ........................ 10.5 .......................... -4.2 10,000 ...................... 10.1 .......................... -4.6 (1) - Subtract correction shown from gauge readings. ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ ALTITUDE VACUUM VARIATIONS ALTITUDE VACUUM VARIATIONS TABLE ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Altitude Absolute Gauge Altitude (Ft. Above Pressure of Correction Sea Level) Atmosphere (psi) (1) (psi) 0 ........................... 29.92 ............................ 0 1000 ........................ 28.92 ......................... +1.0 2000 ........................ 27.82 ......................... +2.1 3000 ........................ 26.82 ......................... +3.1 4000 ........................ 25.82 ......................... +4.1
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A/C SYSTEM GENERAL DIAGNOSTIC PROCEDURES Article Text (p. 2) 1989 Volkswagen Golf For Volkswagen Technical Site Copyright © 1998 Mitchell Repair Information Company, LLC Monday, August 23, 1999 11:35PM 5000 ........................ 24.92
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