Full fuel tank the car uses about 2 gallons of gas then quits?
full fuel tank the car uses about 2 gallons of gas then quit. Some people say it is the fuel sending unit in the tank, some say it is the fuel sending unit under the dash. what could it be?
My car has 240000 miles.
My car has a manual transmission.
Experienced mechanics share their insights in answering this question :
If your fuel pump stops pumping fuel when you only use two gallons then you need to remove the fuel pump from the tank to verify the fuel tank is full except the two gallons used. If tank is still full then your fuel pump is leaking on the assembly and begins sucking in air. Inspect the fuel module and replace it if it is damaged and leaking. If the fuel tank is real low on fuel then replace the fuel sending unit so it indicates the correct amount of fuel.
How to Identify and Fix Common car Problems ?
Our sources include academic articles, blog posts, and personal essays from experienced mechanics :
Gas pumps are mechanically designed to automatically stop pumping gas as soon as the tank is full. The nozzle valve shuts automatically once the gasoline blocks the air in the Venturi tube.
The fuel pump may be starting to go bad, when you get below half a tank, the pump does not submerge in fuel as much to keep it cool and it will seize up and stall the motor. You will need to replace the pump and check inside the bottom of the tank for small metal bits that almost look like shiny sand.
The Honda Civic has a 12.4-gallon gas tank in each version of the sedan.
A key reason race teams often go with two pumps is the backup or redundancy factor. If one fuel pump should fail or get damaged, the second pump can keep the vehicle on the race track. This is especially true in endurance racing where the car or truck may run at nearly full throttle for up to 24 hours at a time.
Also, unburnt fuel will result in excessive hydrocarbon pollution. If a vehicle is filled at full capacity and parked on an inclining or declining surface may result in leakage, which can be hazardous as fuel is a highly inflammable substance.
If the fuel pump stops working for any reason, the flow of fuel to the engine stops and the engine dies. Fuel pump failures tend to be sudden and unpredictable, with few symptoms to warn the motorist that trouble is brewing. And the higher the mileage on the vehicle, the greater the risk of a fuel pump failure.
Less petrol in the tank means more evaporation (in theory)
The basic thinking behind it is that when the fuel tank is half full, there is more air in the tank which means the fuel evaporates faster. The quicker it runs out, the more trips you will need to make to keep filling up.
The fuel tank capacity of Honda Civic is 47 litres. For more information, Kindly visit specifications.
Honda Civic mileage starts at 16.5 and goes up to 25.35 kmpl. The mileage of Civic Petrol is 16.5 kmpl and the mileage of Civic Diesel is 25.35 kmpl.
The two main dual fuel pump designs are series and parallel. A series design places two fuel pumps inline in a common fuel line. A parallel system has pumps working in two separate fuel lines that commonly merge farther up the fuel system at a `Y` connec- tion.
Stage 2 Bucketless Fuel Pump:
This Low-Pressure Fuel Pump delivers more than double the flow of a stock fuel pump and is capable of running 100% E85. It is a drop in replacement and requires no major assembly nor any screws to be turned.
The average tank can carry between 45 to 65 liters of fuel. However, the average tank is in turn carried by the average car, which is a sedan. As for trucks and SUVs, they have much bigger tanks while for Nano cars or miniature vehicles, the tank size is also smaller in turn.
Help avoid an emergency
Having a full tank of gas prevents you from being stranded or getting stuck in an accident or traffic jam without a means to keep your vehicle running. You can also avoid having to call a tow truck or roadside assistance.
Engine misfires: When running on empty, your car`s fuel pump can start to take in air, which means the engine isn`t consistently getting the gas it needs. This often results in engine misfires. To you, this will likely feel like your engine has a loss of power, hesitation or vibration.
A faulty fuel pump can cause all kinds of engine problems. This is because the fuel pump is responsible for the fuel delivery from the tank to the engine. The average lifespan of a fuel pump is 100,000 miles; most pumps last longer than that.
Required fuel pressure can vary depending on your vehicle`s engine and fuel system. Carbureted engines may require as little as 28 kPa (4 PSI), while modern multipoint fuel injected high-performance engines can require as much as 414 kPa (60 PSI).
A small pipe called a venturi runs alongside the gas nozzle. When the end of the venturi pipe becomes submerged with the rising gas, it chokes off the air pressure that holds the nozzle handle open and shuts down the gas flow.
Overfilling: A Waste of Money
If you fill your tank past the first click, this system can suck in gas you just put in — and paid for — and could also damage the pump`s vapor control system. Overfilling can also cause gas to splash out, pouring a little more of your money onto the ground.
A small pipe called a venturi runs alongside the gas nozzle. When the end of the venturi pipe becomes submerged with the rising gas, it chokes off the air pressure that holds the nozzle handle open and shuts down the gas flow.
Gas pumps shut off at $100 because of security measures on credit cards. If you pay with cash, you can avoid this.
For the specification we must consult service-data, but the system should hold some pressure for about five-minutes. In the example above, from a late-nineties model Jeep, it should hold at least 30 PSI for five-minutes. If the system maintains the pressure, a third test is in order.
Overfilling: A Waste of Money
If you fill your tank past the first click, this system can suck in gas you just put in — and paid for — and could also damage the pump`s vapor control system. Overfilling can also cause gas to splash out, pouring a little more of your money onto the ground.
For the specification we must consult service-data, but the system should hold some pressure for about five-minutes. In the example above, from a late-nineties model Jeep, it should hold at least 30 PSI for five-minutes. If the system maintains the pressure, a third test is in order.
Relevant Questions and Answers :
the most relevant questions and answers related to your specific issue
Full fuel tank the car uses about 2 gallons of gas then quits?
ANSWER : If your fuel pump stops pumping fuel when you only use two gallons then you need to remove the fuel pump from the tank to verify the fuel tank is full except the two gallons used. If tank is still full then your fuel pump is leaking on the assembly and begins sucking in air. Inspect the fuel module and replace it if it is damaged and leaking. If the fuel tank is real low on fuel then replace the fuel sending unit so it indicates the correct amount of fuel.
Read Full Q/A … : Full fuel tank the car uses about 2 gallons of gas then quits?
I have a 1981 e-350 with dual fuel tanks the p.o. added a third tank and 3 electric fuel pumps along with sepparate gauges and swi
ANSWER : The switch you are referring to is vended with the required electrical and fuel schematic (I just looked in the box) that answers your installation question. If you want an advance view, here is a link as well. Yes, you need a return line and just refer to the aforementioned link. If you are retrofitting back to OEM, I strongly encourage you to buy the original Factory Service Manual (FSM). There are lots of details attending this system and obviously it is difficult to recount it all here. The FSM will make your life much easier and you can then make sure your installation is perfect. Alternatively, YourMechanic can dispatch a certified mechanic and perform the whole retrofit and check out if you desire. Just request and schedule a generic service such as fuel pump service and the mechanic will come to your location and estimate the parts and labor required. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.
Read Full Q/A … : Full fuel tank the car uses about 2 gallons of gas then quits?
I have to fill gas tank everyday due to car using alot of fuel
ANSWER : Hi there. There are dozens of problems that can lead to a drop in gas mileage, some of them are serious and some can be easily corrected. Here are some of the more common issues that can affect the fuel efficiency of most cars.On newer cars like your Sonic however, unless you’re driving more than 300 miles per day, you shouldn’t have to fill the fuel tank daily. Since the dealership has attempted to resolve this issue, you might want to have an independent professional mobile mechanic complete a car is getting worse gas mileage inspection to see if they can find the source of this issue.
Read Full Q/A … : Full fuel tank the car uses about 2 gallons of gas then quits?
1996 F150 4.9 5 speed. Frt. Fuel pump quit working. Put fuel in rear tank and it sucked the fuel to the frt tank.
ANSWER : The two tanks are designed to work together and so BOTH pumps must be functioning and, as well, the related fuel system supply code, the Code P0232 that has set has to be resolved. P0232 means that the fuel pump relay is stuck on, keeping power supplied to the fuel pump even after the ignition has been turned off although another possibility is the fuel pump secondary power circuit has a short to battery voltage. The factory service manual (FSM) specifies a very lengthy diagnostic (because you have separate tanks). If you do not have the FSM, your best bet is to request a fuel pump diagnostic – dual tanks and let a certified mechanic get to the bottom of this. With regard to the other code, P0704, that code will set if the clutch switch is defective, there is worn clutch pedal lever or clutch lever bushing, shorted or open wiring and/or connectors in the clutch switch circuit, a blown fuse or burnt fusible link and/or, rarely, a faulty PCM or programming error. If you request the pump diagnostic the responding certified mechanic will get this taken care of for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.
Read Full Q/A … : Full fuel tank the car uses about 2 gallons of gas then quits?
Fuel tank is so rusty, can a sheet metal shop fabricate a fuel tank made of stainless steel and will it not rust?
ANSWER : Hello. I do not think you will find a shop to make a fuel tank for the vehicle since the tank is very custom to fit only your vehicle. You should purchase a new one and try not to always run your fuel tank near empty. The fuel in a tank will keep the rust from forming. When you run low on fuel all the time, the top part of the tank will start getting rusted and will spread all over the tank. Also stay away from fuel stations that just got their tanks filled by the tanker. You will get excess water if you do.
Read Full Q/A … : Full fuel tank the car uses about 2 gallons of gas then quits?
I need to replace a 45 gallon aftermarket gas tank with a used on 26 gallon tank. What’s your estimated cost to do this? 2002 Chevrolet Silverado 2500HD
ANSWER : Hello – unfortunately, this is not a task YourMechanic can offer at this point. Check with a local 4×4 or off-road shop, who will be more capable for a modification such as this. Thanks for thinking of us though!
Read Full Q/A … : Full fuel tank the car uses about 2 gallons of gas then quits?
I installed a new fuel sending unit the gas tank is full and it shows empty when u take all gas out it shows full what could it be
ANSWER : It sounds like you put in an incorrect sending unit or it is defective and needs a replacement. The fuel sending unit will vary resistance from low to high resistance controlling the gauge. If the signal from the sending unit is opposite of what it should be then the gauge will work opposite of the way it should. I would recommend replacing the sending unit and make sure the new one works opposite of the one you have now. You may have to get the correct one from the dealer since sometimes the aftermarket ones do not always work. You can connect the sender and check it before installing it back in the tank.
Read Full Q/A … : Full fuel tank the car uses about 2 gallons of gas then quits?
Hunting idle speed and stalling.
ANSWER : Hi There,
It sounds like you may have an issue with your evaporative emissions control system causing the hunting idle problem and the no start issue after filling up your fuel tank. Your car has a small purge valve called a purge solenoid that controls the venting of fumes from the fuel tank as these fumes build up inside, particularly when you are refueling the car with gas. The EVAP system prevents fuel vapors from the fuel tank from escaping into the atmosphere. The EVAP system collects and temporarily stores the fuel vapors in the charcoal canister. The charcoal canister is filled with activated carbon pellets that can absorb the fuel vapors. When the engine is running, the fuel vapors are purged from the canister and burned in the engine. The vent control valve (solenoid) controls the flow of outside air in and out of the charcoal canister. The vent valve is controlled by the engine computer (PCM). Normally the vent valve is open. It closes when the engine computer tests the EVAP system for leaks. If a leak in the EVAP system is detected, the Check Engine light will illuminate on the dash and the trouble code related to the problem will be stored in the engine computer. When an air leak is present in the EVAP system, the MAP sensor will not be able to determine the air density, and the MAF sensor will not be able to determine the volume of air, entering the engine correctly. This will lead to an over fueling situation or an under fueling situation depending on the size of the air leak and engine operating speeds and load. This may eventually lead to catalytic converter problems as well as misfiring problems. I would recommend having an expert from Your Mechanic come to your location to diagnose and inspect your vehicle.
It sounds like you may have an issue with your evaporative emissions control system causing the hunting idle problem and the no start issue after filling up your fuel tank. Your car has a small purge valve called a purge solenoid that controls the venting of fumes from the fuel tank as these fumes build up inside, particularly when you are refueling the car with gas. The EVAP system prevents fuel vapors from the fuel tank from escaping into the atmosphere. The EVAP system collects and temporarily stores the fuel vapors in the charcoal canister. The charcoal canister is filled with activated carbon pellets that can absorb the fuel vapors. When the engine is running, the fuel vapors are purged from the canister and burned in the engine. The vent control valve (solenoid) controls the flow of outside air in and out of the charcoal canister. The vent valve is controlled by the engine computer (PCM). Normally the vent valve is open. It closes when the engine computer tests the EVAP system for leaks. If a leak in the EVAP system is detected, the Check Engine light will illuminate on the dash and the trouble code related to the problem will be stored in the engine computer. When an air leak is present in the EVAP system, the MAP sensor will not be able to determine the air density, and the MAF sensor will not be able to determine the volume of air, entering the engine correctly. This will lead to an over fueling situation or an under fueling situation depending on the size of the air leak and engine operating speeds and load. This may eventually lead to catalytic converter problems as well as misfiring problems. I would recommend having an expert from Your Mechanic come to your location to diagnose and inspect your vehicle.
Read Full Q/A … : Full fuel tank the car uses about 2 gallons of gas then quits?
