Honda Prelude Diagnostic Service Manual

ARTICLE BEGINNING
1993 AIR CONDITIONING & HEAT
A/C General Diagnostic Procedures
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 problems 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.
PREPARATION FOR TESTING
1) Attach Low and High pressure gauges.
2) Start engine and allow to warm up.
3) Set system to COOL and blower to HIGH.
4) Open car doors and hood.
5) Run engine at fast idle for 2-3 minutes.
AIR CONDITIONING SYSTEM PERFORMANCE CHECK
AIR CONDITIONING SYSTEM PERFORMANCE CHECK TABLE
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PERFORM TESTS:
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Temperature Check
* Switch to LOW blower.
* Close doors.
* Check outlet temperature.
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PERFORM TESTS:
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Visual Check
* Compressor
* Condenser
A/C SYSTEM GENERAL DIAGNOSTIC PROCEDURES
1993 Honda Prelude
For Cadi Centre Nsk CA 95051
Copyright © 1998 Mitchell Repair Information Company, LLC
Sunday, July 08, 2001 11:18AM
Quiet with no leaks
Free of obstructions
Article Text
SHOULD BE:
o
35-45 F
system and gauge readings.
SHOULD BE:
Temperature Check Is:
Too warm - Check
control lever
operation, heater
water valve, cooling
Visual Check Shows:
Noisy - Check belts,
oil level, seals,
gaskets, reed valves.
Blocked - Clean off.
Plugged - Flush or
IF:
IF: