1997 Ford F-150 Speedometer Is Not Working

The 2009-2014 Ford F-150 with automatic climate control may have a problem with frequent fan speed changes when using the heater or air conditioner. This includes F150 Harley Davidson, King Ranch, SVT Raptor, FX2, FX4, Platinum, Lariat, and STX editions. Normally, the fan speed changes only to maintain a selected temperature, but when the fan speed changes frequently and needlessly, there is an issue with the fan speed control unit. The fan speed control unit, sometimes erroneously called the blower motor resister, regulates the speed for the blower motor in order to maintain the temperature set by the driver. When it fails, the fan will run at random settings, and the climate control will be inaccurate. Note: this does not affect the temperature of the air that comes from the vents, it affects the amount of air that comes from the vents. The repair is simple, and quick. The control unit is located behind the glove box in most models, and removal and installation takes only minutes. Also note: this only applies to vehicles with single or dual automatic climate control.

Some Ford F-150 owners report experiencing issues with the "Service AdvanceTrac" warning light alongside turn signal malfunctions, indicating a problem with the vehicle's Advancetrac system, which is essential for electronic stability control. This warning should not be ignored, as it signifies a malfunction that requires prompt attention. Common causes for the illuminated warning light often involve sensor-related issues. To resolve the problem, some owners utilize a high-quality automotive scan tool to identify and correct the underlying issue, which may also allow them to reset the warning light. However, resetting the warning light is merely a temporary fix, as it disables the warning code without addressing the root cause. If the warning is suspected to be triggered in error, a scan tool can assist in resetting the light. Addressing these concerns effectively is crucial for ensuring the proper functioning of the Ford F-150's Advancetrac system and turn signals.