The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.
Over time serpentine belts stretch, crack, and the ribs that ride on the accessory pulleys being to wear smooth. A squealing noise that increases with engine speed or as engine driven accessories are turned on may be noted. The noise is caused by the belt slipping on the pulleys, insufficiently driving them. Ineffective air conditioning, a battery warning light, or intermittent power steering assist can result from this.
The first indication of a defective fan clutch is a healthy cooling system that runs below or above the normal temperature range. This is due to the fan running too fast or too slow. Also, a seized cooling fan will cause a loud roaring fan noise from under the hood every time the accelerator is pressed, and the engine will feel as if it lacks power. In this situation it would be very difficult to turn the engine cooling fan by hand, of course when the vehicle is off. Finally, if the clutch fails the fan will either turn very slowly, and not respond well to engine speed.
The bad thermostat can cause two different sets of problems, depending on whether it's stuck open or stuck closed.
A thermostat that is stuck open can cause the engine to run colder than normal and turn on the check engine light. It may also cause poor fuel mileage and the heater to blow cool air.
A thermostat that is stuck closed will cause the vehicle to overheat. If a new thermostat doesn't resolve engine temperature problems, the cooling system needs to be checked for other issues.
» LEARN MORE: Signs of a bad thermostat, and how to fix it
When the engine coolant temperature sensor fails, it will send inaccurate information to the vehicle’s computer, causing the computer to react to false operating conditions. This will cause the engine to consume more fuel than normal, depleting fuel mileage, and causing black, sooty smoke from the engine under moderate to heavy acceleration. The check engine light will illuminate, and on-board diagnostic trouble codes may be stored for exhaust and emission system failure, fuel delivery system failure, and engine cooling system failure. Overheating may also occur, as the coolant sensor may be leaking fluid out of the engine, creating a an air pocket in the system.
To effectively diagnose the non-working radiator fan in your 1999 Ford Explorer, begin with a systematic approach that prioritizes simpler checks before delving into more complex issues. Start by inspecting the fuse associated with the radiator fan; a blown fuse is a common and easily fixable problem that can prevent the fan from operating. If the fuse is intact, proceed to examine the relay, as it plays a crucial role in supplying power to the fan. Testing or replacing a faulty relay can often resolve the issue. Next, test the fan motor directly by applying power to it; if it fails to turn on, the motor may need replacement. Additionally, check the temperature sensor, which is responsible for activating the fan when the engine reaches a certain temperature. A malfunctioning sensor can lead to the fan not engaging when needed. Don’t forget to inspect the wiring for any signs of damage, loose connections, or corrosion, as these can disrupt the electrical flow. Lastly, ensure that your coolant levels are adequate, as low coolant can lead to overheating and affect fan operation. By following this diagnostic approach, you can efficiently identify and address the root cause of your radiator fan issues.
When dealing with a non-functioning radiator fan in a 1999 Ford Explorer, it's essential to consider several common problems that could be at play. One of the primary culprits is a faulty fan motor, which may require replacement to restore functionality. Additionally, a blown fuse in the fan circuit can disrupt power to the fan, so checking and replacing any blown fuses is a straightforward first step. Another potential issue is a malfunctioning temperature sensor, which may fail to signal the fan to activate when the engine reaches a certain temperature; replacing this sensor can often resolve the problem. It's also crucial to inspect the wiring for any damage or loose connections, as these can impede the fan's operation. Lastly, ensure that the coolant level is adequate, as low coolant can lead to overheating and affect the fan's performance. By systematically addressing these common causes, you can effectively troubleshoot and potentially fix the radiator fan issue in your Ford Explorer.
Addressing the repair of a non-working radiator fan in a 1999 Ford Explorer is of utmost urgency due to the critical role the fan plays in maintaining engine temperature. When the radiator fan fails, it can lead to severe overheating, which poses significant risks such as warped cylinder heads and blown head gaskets, potentially resulting in catastrophic engine failure. Ignoring these symptoms not only jeopardizes the vehicle's performance but can also lead to costly repairs that could have been avoided with timely intervention. Furthermore, an overheating engine can diminish fuel efficiency, impacting your overall driving experience. Therefore, it is essential to prioritize this repair to ensure the safe operation of your vehicle and to protect against further damage to the engine. Taking action promptly will help maintain the health of your Ford Explorer and prevent more serious complications down the road.
See what others are asking about their Ford Explorer. Get answers from RepairPal's community of auto experts and enthusiasts.
Read about related problems experienced by other Ford Explorer drivers like you.
