Other causes of excessive current draw could be corroded or damaged wiring. Check the wiring harness that connects the fuel pump to the vehicle's electrical system. The corrosion or loose connections raise resistance, which in turn would make the pump draw more current. Damaged wiring repair or replacement costs range from $100 to $300, depending on the extent, and can restore operation to normal. Some automotive recalls, such as the 2014 model-year recall for several models of GM cars due to faulty fuel pump wiring, have shed light on the importance of electrical connections in trying to avoid excessive current draw.
The other possibility may be a failing fuel pump motor. With increasing mileage, internal wear and tear take their toll on it, increasing friction and resistance. The pump may start drawing as much as 30% more than its normal power consumption. If the motor is at or near the end of its life span-usually about 100,000 miles-then the only solution may be to replace the pump entirely. A new fuel pump would be in the region of $400-$600, which saves the electrical system from the car further damage.
Also, be sure to check the fuel pump relay. A faulty operating relay can drop voltage and the pump tries to compensate by pulling current higher. Relays are usually easy and inexpensive to replace with costs ranging from 20 to 50 dollars. This is imperative to ensure there is no erratic voltage supplied to the pump.
To learn more, go to Fuel Pump for care and troubleshooting instructions.
How to Fix a Fuel Pump That Is Drawing Too Much Current?
When a fuel pump draws too much current, this normally signifies greater resistance in the fuel system, or its pump motor has almost reached the end of its lifespan. Firstly, take the measurement of the current draw with the use of a multimeter. A good fuel pump normally draws within the range of 4 to 6 amps. If the current exceeds over this range by more than 20%, that means the motor is pulling harder than it should, thus overheating and ultimately leading to failure. A current draw above 10 amps sets off a warning of an issue in which a serious solution is needed to prevent damage to the electrical system.
One of those is a clogged fuel filter. With the fuel filter blocked, the pump must work that much harder to push the fuel through the system. Replacing the fuel filter will ease the pump's workload and lower the current draw up to 15% in some cases. In general, it's said fuel filters should be replaced every 30,000 miles, but with the contaminated fuel throughout so many areas, this may have to be shorter.
Other causes of excessive current draw could be corroded or damaged wiring. Check the wiring harness that connects the fuel pump to the vehicle's electrical system. The corrosion or loose connections raise resistance, which in turn would make the pump draw more current. Damaged wiring repair or replacement costs range from $100 to $300, depending on the extent, and can restore operation to normal. Some automotive recalls, such as the 2014 model-year recall for several models of GM cars due to faulty fuel pump wiring, have shed light on the importance of electrical connections in trying to avoid excessive current draw.
The other possibility may be a failing fuel pump motor. With increasing mileage, internal wear and tear take their toll on it, increasing friction and resistance. The pump may start drawing as much as 30% more than its normal power consumption. If the motor is at or near the end of its life span-usually about 100,000 miles-then the only solution may be to replace the pump entirely. A new fuel pump would be in the region of $400-$600, which saves the electrical system from the car further damage.
Also, be sure to check the fuel pump relay. A faulty operating relay can drop voltage and the pump tries to compensate by pulling current higher. Relays are usually easy and inexpensive to replace with costs ranging from 20 to 50 dollars. This is imperative to ensure there is no erratic voltage supplied to the pump.
To learn more, go to Fuel Pump for care and troubleshooting instructions.
Other causes of excessive current draw could be corroded or damaged wiring. Check the wiring harness that connects the fuel pump to the vehicle's electrical system. The corrosion or loose connections raise resistance, which in turn would make the pump draw more current. Damaged wiring repair or replacement costs range from $100 to $300, depending on the extent, and can restore operation to normal. Some automotive recalls, such as the 2014 model-year recall for several models of GM cars due to faulty fuel pump wiring, have shed light on the importance of electrical connections in trying to avoid excessive current draw.
The other possibility may be a failing fuel pump motor. With increasing mileage, internal wear and tear take their toll on it, increasing friction and resistance. The pump may start drawing as much as 30% more than its normal power consumption. If the motor is at or near the end of its life span-usually about 100,000 miles-then the only solution may be to replace the pump entirely. A new fuel pump would be in the region of $400-$600, which saves the electrical system from the car further damage.
Also, be sure to check the fuel pump relay. A faulty operating relay can drop voltage and the pump tries to compensate by pulling current higher. Relays are usually easy and inexpensive to replace with costs ranging from 20 to 50 dollars. This is imperative to ensure there is no erratic voltage supplied to the pump.
To learn more, go to Fuel Pump for care and troubleshooting instructions.