Sediment, rust and debris from the pump can get into the tank and kill the fuel pump. This video is sponsored by Carter.
How do modern gas gauges stay still when the gas in your tank moves around? This video is sponsored by Carter.
How do I test the wiring for the fuel pump on a vehicle? What are the symptoms of a clogged fuel filter? What are the signs of E85 contamination? What should I do when I install the new pump and it doesn’t work? Get the answers to these questions and more in this Fuel System FAQ.
The Chevrolet Blazer and GMC Jimmy are popular GM vehicles, and in 1998 they were equipped with a number of vehicle options that make determining the correct fuel module for either application confusing. These vehicle applications could potentially offer three different fuel modules to fit.
Fuel pump replacement comebacks can be costly and can hurt your reputation. One of the leading causes of failure is the tank. If a vehicle gets 20 miles to the gallon, then more than 5,000 gallons of gas (from many stations) will go through the tank in 100,000 miles. During this time, sediment, rust and debris from the pump can find its way into the tank. Removing all contaminates is critical.
Import Specialist Contributor Gary Goms discusses how contaminated fuel can mimic the symptoms produced by defective fuel pumps, fuel injectors and fuel control components like mass air flow (MAF) sensors. Although cases involving contaminated gasoline are relatively rare nowadays, they still occur. In many cases, the technician has replaced the fuel pump or MAF sensor to address a P0171/P0174 “lean-condition” DTC with no result.
In this study on the causes for foul fuel finding its way into your customer’s vehicle tank, we find that there are normally three reasons – refinery mistakes, poor
Gary Goms discusses the mechanical challenges of restoring a truck that he began maintaining when he went to work in a gas station – back in 1957!
The most common diagnostic procedures for fuel pumps in the past were analog and hands on. Most fuel pump-related problems could be solved with a pressure gauge and voltmeter. Today, the scan tool is the most important tool when diagnosing a fuel supply problem.
DeLorean owners and enthusiasts know to be wary, a car left sitting that long and havoc ensues with the sensitive fuel system of a 25-year-old DeLorean. In fact, any car, left sitting for a lengthy period of time will eventually encounter fuel problems. One specific problem to note would be the need for a new fuel pump. Cars left sitting, and even daily drivers, can fall victim to fuel pump failure. Over time, debris and contaminants build up in the fuel tank.
Solving cranking, no-fuel or insufficient-fuel driveability problems on late-model imports can be challenging, especially if a technician doesn’t take into account the way that modern fuel systems operate. Some vehicles, for example, limit vehicle speed by deactivating fuel injectors. In some rare cases, a miscalculation in vehicle speed can cause an insufficient fuel condition.
First introduced as a family back in 1990, these engines have been upgraded and improved to provide good torque for the necessary applications, reasonable fuel economy and a reputation for durability and appropriate performance.