Chrysler PT Cruiser Service & Repair Manual page 273

PT
ENGINE - 2.0/2.4L DOHC (Continued)
CONDITION
HOSE OR HOSES COLLAPSE
WHEN ENGINE IS COOLING
RADIATOR FAN OPERATES ALL
THE TIME
RADIATOR FAN WILL NOT
OPERATE, GAUGE READING
HIGH OR HOT
NOISY FAN
POSSIBLE CAUSE
1. Vacuum created in cooling
system on engine cool-down is not
being relieved through coolant
recovery/reserve system.
1. Malfunctioning electrical
component or circuit.
2. Check for low coolant level.
1. Fan motor defective.
2. Fan relay, powertrain control
module (PCM) or engine coolant
temperature sensor defective.
3. Blown fuse in power distribution
center (PDC).
1. Fan blade loose.
2. Fan blade striking a surrounding
object.
3. Air obstructions at radiator or A/C
condenser.
4. Electric fan motor defective.
ENGINE - 2.0/2.4L DOHC
CORRECTION
1. (a) Pressure cap relief valve
stuck (Refer to 7 - COOLING/
ENGINE/RADIATOR PRESSURE
CAP - DIAGNOSIS AND TESTING).
Replace as necessary.
(b) Hose between coolant
recovery/reserve bottle and outlet
connector is kinked. Repair as
necessary.
(c) Vent at coolant recovery/reserve
bottle is plugged. Clean vent and
repair as necessary.
(d) Recovery/reserve bottle is
internally blocked or plugged. Check
for blockage and repair as
necessary.
1. Refer to appropriate Powertrain
Diagnostic Procedures. Repair as
necessary.
2. Repair as necessary.
1. Refer to appropriate Powertrain
Diagnostic Procedures manual for
operation of the DRB III scan tool.
Repair as necessary.
2. Refer to appropriate Powertrain
Diagnostic Procedures manual for
operation of the DRB III scan tool.
Repair as necessary.
3. Determine cause for blown fuse
and repair as necessary.
1. Replace radiator fan assembly.
2. Locate point of fan blade contact
and repair as necessary.
3. Remove obstructions and/or
clean debris from radiator and/or
A/C condenser.
4. Replace radiator fan assembly.
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