FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM
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Car repair manuals for everyone.
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Mercury
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1999
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Cougar V6-153 2.5L DOHC VIN L SFI
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Repair and Diagnosis
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Engine, Cooling and Exhaust
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Cooling System
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Testing and Inspection
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Component Tests and General Diagnostics
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Thermostat
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Thermostat Test
Thermostat Test
The thermostat should be replaced only after the following tests have been carried out.