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SYMPTOM
REMEDY
Hot air tlow is low.
Blower motor runs, but one or more
speeds are inoperative.
Follow the flowchart (see page 21-9).
Blower runs propetly.
Check for the following:
. Clogged heater duct
. Clogged heater outlet
. Incorrect door Position
No hot air tlow
Blower motor does not run at all.
F o l l o w t h e f l o w c h a r t { s e e p a g e 2 1 - 1 1 }
Blower motor runs.
Check for the following:
. clogged heater duct
. Clogged blower outlet
. Clogged heatet valve
. Faultv air mix door
. Heater valve cable adjustment lsee page 21-27].
. Air mix control cable adiustment {see page 21-27)
. Faulty thermostat (see section 10)
. Clogged evsporator (with air conditioning)
. Frozen evaDorator (with air conditioning)
Mode control motor does not run, or one or more mooes are
inoDeratave.
Follow the flowchart (see page 21-14).
Recirculation control door does not change between FRESH
and RECIRCULATE.
Follow the flowchart {see page 21-17).
Troubleshooting
Symptom Chart
NOTE: Check the engin€ coolant level and allow the engine to warm up before troubleshooting'
21-8
v
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Table of Contents
Troubleshooting
