Reasons behind Chevrolet Silverado 1500 Fuel Pump Errors
Although your Chevrolet Silverado 1500's fuel pumps are engineered to provide a longer service life, they are still susceptible to all sorts of damages overtime. These problems may range from engine stalling to gas gauge malfunction. If you doubt your fuel pump's efficiency, then better pop up the hood and perform some troubleshooting. Listed below are some of the common errors encountered with Chevrolet Silverado 1500's fuel pumps and the reasons behind them:
Engine misfiring or stalling
When you try to start the Chevrolet Silverado but the car refuses to run, check the fuel pump's pressure level. Engine stalling is usually the cause of an imbalance in the fuel pump's pressure. Luckily, there is a wide range of options and tests that you can perform on your pickup truck to diagnose a fuel pump pressure defect. You can use several tests like the dead head pressure test to detect the auto's pump pressure. Your local car shop should have several diagnostic instruments and also their respective manuals as how to use them.
In addition to the fuel pump's pressure, a low fuel volume may also be the reason behind engine misfiring or stalling. You see, if the fuel pump is not delivering enough fuel, then the Silverado will run inefficiently or may not even run at all. Fortunately, low fuel volume is easily detected by inserting a fuel flow gauge into the car's fuel supply lines.
Gas gauge malfunction
Sometimes when your vehicle's fuel pump malfunctions, the gas gauge also malfunctions. This problem is often attributed to the use of bad gas. You see, this is easily tested by simply running your vehicle. Sometimes, when a fuel pump uses bad gas, the vehicle's gas gauge will stop working. The car will run out of gas without you noticing because the gauge is still showing fuel. When this happens, you'd better change your fuel pump right away to avoid further repairs.
Other troubleshooting tips
When troubleshooting for fuel system errors like the fuel pump, be sure to perform the diagnosis in a well-ventilated area and away from appliances with open flames. Failing to do so can cause fatal accidents.
Chevrolet Silverado 1500 Fuel Pump Buyer's Guide
- The fuel pump is a mechanism located inside the gas tank that initiates the fuel delivery process.
- This part is responsible for drawing out fuel from the tank, filtering out residue, and pressurizing the fuel.
- Chevy Silverado 1500s are fitted with an electric fuel pump located inside the gas tank.
- OEM replacement parts are sold individually and typically cost anywhere between $50 and $1,100.
- Common signs of a faulty fuel pump include unexpected stalling, check engine light warning, and whirring noises.
The Chevy Silverado 1500 made an impressive feat by bagging Motor Trend’s 2007 ‘Truck of the Year’ and ‘North American Truck of the Year’ awards less than a decade from its debut. Its history may be shorter than trucks from Ford and Dodge, but Chevrolet’s focus on innovating performance and design elements makes it a worthy competitor in the segment. To learn more about this truck, let’s go deeper into one of its components—the fuel pump.
What is a fuel pump?
The fuel pump is a mechanism that initiates the fuel delivery process. This module is found inside the fuel tank of a Chevy Silverado 1500. Its primary role is to deliver pressurized gas to the fuel injectors in the car engine.
The fuel pump module is made up of components housed in a plastic canister. A fuel pump sensor is attached to the module which communicates fuel levels to the truck’s gas gauge and empty level lights on the dashboard. The only way to access the fuel pump on the Silverado is by removing the gas tank.
How does a fuel pump work?
Automotive fuel pumps work in two ways—they either push or pull fuel towards the engine. This part is responsible for drawing out fuel from the tank, filtering out residue, and pressurizing the fuel for combustion.
Electric fuel pumps
Chevy Silverado 1500s are fitted with an electric fuel pump located inside the gas tank. Unlike mechanical fuel pumps, which pull fuel towards the engine, an electric fuel pump injects fuel into it. Here’s how it works.
The electric fuel feed pump siphons gas from the fuel tank and pushes it through the fuel filter to remove any tank residue. The fuel is delivered to the metering pump which spins it around to pressurize it. Once it reaches the right amount of pressure, it flushes the fuel out of the pump and pushes it into the fuel line.
Finding the right fit
There have been three generations of the Chevrolet Silverado 1500, each with parts of varying sizes. To help you find the right fuel pump for your truck, simply input your truck’s year, make, and model into our website’s search engine.
How much does a replacement Chevy Silverado 1500 fuel pump cost?
The cost of replacement fuel pumps varies depending on your truck’s year and model. OEM replacement parts typically cost anywhere between $50 and $1,100. These are sold individually and may come with or without a fuel sending unit and a pressure sensor. Replacing your truck’s fuel filter is also recommended every time the fuel pump is replaced.
Extreme caution is needed during the replacement of this part. Due to its location inside the gas tank, there is a risk of igniting fuel and causing a fire hazard. Accidental dumping of fuel on organic material may also pose health and environmental risks. We strongly recommend going to a trusted mechanic to have the part safely replaced.
Common signs of a faulty fuel pump
An electro-mechanical component like the fuel pump is bound to wearing and failing over time. When this happens, you may experience problems that affect the drivability and fuel economy of your truck. If you’ve experienced one or more of the following signs, we recommend getting your truck checked by a professional.
A common sign of a faulty fuel pump is a sudden loss of power, specifically when driving uphill or while hauling a heavy payload. This happens when the fuel pump is unable to meet an increased demand for fuel. As a result, the engine will shut down under stress. Replacing the fuel pump will ensure that the amount of fuel delivered to the engine is consistent and its pressure is properly regulated.
Check engine light switches on
Your truck’s engine requires the right balance of air and fuel to function efficiently. As the fuel pump degrades and fails to work properly, the amount of fuel pushed into the engine may no longer be proportional to its air intake. When this happens, the check engine warning light will switch on.
Unusual noises and engine sputtering
As the fuel pump pressurizes fuel, you should hear a quiet hum from your truck. Whirring noises and sputtering could be a sign that there’s something wrong with the fuel pump. Sputtering at high speeds could be a sign that the stream and pressure of the fuel injected into the engine is not consistent. It could also be caused by damaged components in the pump module or contaminated fuel inside the system.
Tips to Keep Your Chevrolet Silverado 1500 Fuel Pump in Top Shape
Crafted to provide optimum performance for your Chevrolet Silverado 1500, the fuel pump is built to supply enough fuel to run the off-road truck on whatever terrain you wish. However, the fuel pump is not immune to wear and tear. So as a result, it may lead to several sorts of problems to your rugged pickup truck. You see, your Chevy may stall or may not even function. To make sure that your fuel pump will deliver efficiently, follow these maintenance tips:
- Regular checking schedule
- Ideally, it is best to check your Chevy Silverado's fuel pump at least once in a week or two. Doing so will help diagnose fuel pump issues so you can address them quickly. When servicing the fuel pump, check for hairline cracks or brittleness. If this is the case, it is best to find a replacement to the stock fuel pump right away. Failing to do so could lead to more fuel system repairs and costs.
- Never let the car run low or run out of fuel
- To keep your Chevy Silverado's fuel pump in top shape, never let it run low or run out of fuel. In fact, the fuel inside the pump acts as its lubricant. You see, fuel not only propels the vehicle but also keeps the pump in good shape so it is important to keep the pump loaded. If left to dry, the fuel pump may wear at a faster rate.
- Polish pump lever surface
- As a maintenance tip, polish the surfaces on the fuel pump lever. You see, the pump lever that rides on the cam can wear easily and may reduce the fuel pump's efficiency. By regular maintenance, you ensure the Chevy Silverado always goes the extra mile.
- Change filters once in a while
- The fuel filters' condition affects the fuel pumps' efficiency. If left unmaintained, the filters can get contaminated and become clogged. This could damage the pumps and leave your vehicle thirsty for fuel. So to keep your pumps in shape, schedule a regular cleaning or changing of the filters. This helps your auto run more efficiently.
Frequently Asked Questions
How can a problematic fuel pump affect the performance of a Chevrolet Silverado 1500?
A problematic fuel pump can definitely affect the ride quality and drivability of a Chevrolet Silverado 1500. Some of the effects of a bad fuel pump include high current draw, fuel pressure drop, rough engine running, rough idling, and lean air-fuel mixture. In addition, there can be fluctuations in the fuel pressure, excessive noise, spluttering at high rpm, and hard starting. A replacement of the said component is necessary in order to restore the vehicle's engine power, system pressure, and smooth running.
What causes the fuel pump on a Chevrolet Silverado 1500 to wear fast?
Although a fuel pump is seldom a problem in cars, a deteriorated one can still be a major inconvenience. Premature wearing of a Chevrolet Silverado 1500 fuel pump can be due to a missing or dirty filter, moisture in the fuel that leads to corrosion, and contamination in the fuel system. It is necessary to be conscious of the performance of the engine in order to diagnose the early signs of fuel pump deterioration. Generally, a fuel pump can circulate as much as 30 to 35 gallons of fuel per hour. If the numbers are below this range, a vehicle's fuel pump has worn and needs replacement.
What is the sign of a failing Chevrolet Silverado 1500 fuel pump?
One common symptom of a failing fuel pump on a Chevrolet Silverado 1500 is related to the type of sound heard when the engine is started. A screeching sound during engine engagement is present, but it will be gone after a while. There can also be engine sputter from time to time, especially when the temperature starts to climb above the normal level. Also, a bad fuel pump creates problems with starting and acceleration. Insufficient fuel supply to the engine causes slow acceleration, inability to start, and power loss when ascending steep roads.
Where is the fuel pump located on a Chevrolet Silverado 1500?
The fuel pump on a Chevrolet Silverado 1500 is located under the driver's side, attached to the frame rail. It is just easy to locate this component in most cars, and this usually requires tracing the fuel lines.