5000CS Turbo L5-2226cc 2.22L SOHC Turbo (MC) (1987)
Turbocharger Coolant Pump: Testing and Inspection
WORK SEQUENCE
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Run engine until radiator cooling fan switches ON at HIGH speed
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Turn OFF engine and wait five minutes
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After approx. five minutes, secondary coolant pump and radiator cooling fan must switch ON
NOTE: Radiator cooling tan will run on LOW speed.
If Coolant Pump And Radiator Fan DO NOT Run:
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Remove harness connector from secondary coolant pump thermo-switch and bridge terminals
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Coolant pump and radiator fan must run
IF YES:
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Replace secondary coolant pump thermo-switch
IF NO:
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Check for open circuit in coolant pump circuit using wiring diagram