Miscellaneous Component Or System Checks

WARNING: This page does not describe the selected car, but rather 30 other vehicles, including the 2003 Mercury Sable, 2003 Mercury Mountaineer, 2003 Mercury Marauder, 2003 Mercury Grand Marquis, and 2003 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.

Ensure all accessories, A/C and defroster are off, and engine is cooled (so cooling fan would not normally come on). Start engine. Check electric or hydraulic cooling fan. If cooling fan runs continuously, check cooling fan ACPSW or ACP circuits. Perform the following:

On ZX2 and Mustang 4.6L, go to TEST X: CONSTANT CONTROL RELAY MODULE , step 80) under SYSTEM TESTS in SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE article.
On Mustang 3.8L, go to TEST X: CONSTANT CONTROL RELAY MODULE , step 82) under SYSTEM TESTS in SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE article.
On Windstar, go to TEST KF: FAN CONTROL RELAY , step 63) under SYSTEM TESTS in SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE article.
On Crown Victoria, Grand Marquis, LS, Thunderbird and Town Car, verify results of quick test. See QUICK TEST in SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE article. Visually inspect cooling fan for concerns.
On Pickups with Visctronic cooling fan clutch, go to TEST KG: VISCTRONIC DRIVE FAN CLUTCH , step 10) under SYSTEM TESTS in SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE article.
On all other models, go to TEST KF: FAN CONTROL RELAY , step 60) under SYSTEM TESTS in SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE article.

If directed back here from another article for further cooling fan diagnosis, check engine cooling system for mechanical faults. Check engine cooling system for mechanical faults. See COOLING SYSTEM TROUBLE SHOOTING under ENGINE MECHANICAL in TROUBLE SHOOTING - BASIC PROCEDURES article in GENERAL INFORMATION.