Showing articles & questions for topic
fuel system

Related articles

How to Troubleshoot a Gas Cap Cover That Won't Open
Gas cap covers, or fuel doors, get stuck closed and won't open if there's a faulty internal spring or lever, lack of lubrication, or bent fuel door.
Symptoms of a Bad or Failing Fuel Filter (Auxiliary)
If your car is hard to start, developing engine performance issues, or has the Check Engine Light on, consider replacing the auxiliary fuel filter.
How Far Can You Drive Your Vehicle on Empty?
Knowing how many miles you can drive on an empty gas tank prevents getting stranded. Nissan Altimas can go the farthest when the low fuel light is on.
How to Know What Type of Gas to Use
Your vehicle is propelled by a combustion engine. That means that fuel is injected into the engine’s cylinders in some fashion, where it combusts, or burns, to...
How to Replace a Fuel Filler Cap
A good fuel filler cap safely seals the fuel tank. Signs of a failing fuel cap include the smell of gas, stripped threads, or a cracked cap.
How to Tune and Adjust Your Carburetor
While all modern cars use computer-controlled fuel distribution systems, there are still many vehicles on the road that...
How to Figure Out Which Type of Fuel Gets the Best Mileage
We all want our car to go longer on a single tank of gas. While all vehicles come with a mileage or mpg ranking, mileage can actually vary...
How to Use a Fuel Injection Cleaning Kit
Dirty fuel injectors are a common problem for many vehicles in this day in age. With the exception of direct injected and carbureted vehicles, the vast majority of cars on...
How to Replace a Fuel Gauge Sender
The fuel gauge has a sender that goes bad when it says that the fuel level is different lower or higher than it actually is.
P2187 OBD-II Trouble Code: System Too Lean at Idle DTC
P2187 trouble code definition The P2187 OBD-II fault code means the vehicle’s on-board computer has detected a lean fuel mixture at an idle in either Bank 1 or Bank 2 (the...
How to Buy Fuel Treatments
Adding a fuel additive to your gas tank when you fill up is one way to clean vital engine parts of deposits, improve the performance of your engine,...
How to Replace a Fuel Rail Sensor
The fuel system has a fuel rail sensor which fails when the engine operates erratically, has difficulty starting, or the Check Engine Light comes on.
How to Replace a Fuel Pump Shut Off Switch
The fuel pump shut off switch may be faulty when the Check Engine Light comes on or if the engine suddenly turns off while driving.
How to Clean a Throttle Body
A throttle body needs cleaning when the engine idle is rough, the engine stumbles through acceleration, or the Check Engine Light comes on.
How to Flush a Fuel Injector
Clean fuel injectors help keep your engine running smoothly and efficiently. Clogged fuel injectors result in reduced fuel economy and loss of power.
How to Replace a Fuel Pump Relay
The fuel pump has a relay that fails when there is no audible humming sound as the ignition is turned and when the car cranks after longer than usual.
How to Replace a Fuel Meter Assembly
The fuel gauge assembly indicates your fuel level. The fuel gauge will no longer work if there is an application of reverse charge or corrosion.
How to Replace Fuel Injection Lines
Fuel injection lines transfer fuel from the fuel tank to the car engine. Now made of plastic, fuel lines don't rust and hold up to 750 psi.
How to Replace a Carburetor on Most Cars
A carburetor replacement involves the air cleaner, vacuum hose, car fuel line, and a number of other parts. This complex procedure varies by vehicle.
How to Replace Fuel Injector O-Rings
Fuel injector o-rings prevent fuel vapors from entering the car engine. O-rings for fuel injectors hold up to 750 psi and keep fuel from igniting.

Related questions

Question
I have a 2002 toyota camry and my car starts and turns off after about 10 mins after at first it would not crank so i got a new st
Hello, thank you for writing in. There are several reasons why the vehicle may be stalling. You should ALWAYS start by having the vehicle scanned for codes when there is an issue, regardless of a warning light being illuminated. When...
Question
My 2005 xc90 v8 just chugged as I pressed on the gas...eventually stopped an I had to restart. Is this a fuel pump problem?
Hello, thank you for writing in. Stalling like this can happen for several reasons. The fuel pump is a great assumption, but you may want to test the fuel pressure before you go ahead with replacing the pump module. You...
Question
My husbands gas guage has been messing up?
Hello, thank you for writing in. The fuel pump is part of a unit called the fuel module. The module also houses a float that raises and lowers with the level of the fuel. That movement is then translated into...
Question
My car was low on gas. Will start but won't stay on. What could it ve not the starter
Hello, thank you for writing in. There are several reasons why the vehicle would stall under these circumstances. Typically if you run the vehicle out of fuel it does hurt the fuel pump. Beyond burning out the pump, it can...
Question
2011 Audi s5 3.0 hard starting after gassing up
Hello, thank you for writing in. There are many factors to consider in these situations. If your vehicle was run very low on gas, you may have sucked up debris from the fuel tank into the fuel system. You can...
Question
1996 mercury grand marquis Crank, no start
Hello, thank you for writing in. The vehicle may be having issues with the ignition module or the fuel pump. Both are good assumptions to work with for the moment. The ignition module is typically mounted to the firewall or...
Question
honda accord will not start
Hello, thank you for writing in. In these situations always start with the basics. First, when turning the vehicle over to try and start it, a slow cranking speed may indicate you have a weak starter or battery. The starter...
Question
I changed my spark plugs due to p0300 for 2013 infiti
Hello, thank you for writing in. The vehicle originally gave you a code for a misfire. It could have been caused by the spark plugs or a fuel problem. The second code pertains to a low fuel pressure being detected....
Question
Car slows down while accelerating
You should first replace the fuel filter and road test to see if engine runs better. If problem continues then test and replace the fuel pump.
Question
No gas is getting to my engine
Hello, thank you for writing in. To start, you want to see if there is power getting to the fuel pump. This is best done with a test light or a voltmeter. If you do not get a full 12...
Question
When my car idles it sounds like its cutting off for a bit and then goes back to normal.
Hello, thank you for writing in. The code you are getting is for a pressure issue at the fuel rail. It is best to test pressure here because you know exactly how much fuel the engine is getting after having...
Question
Is there anyway to open the gas tank for refueling if the fuel gas lever failed to work?
If you remove the inside trunk side trim cover to access the back side of the fuel door you will pull on the manual release and then door can be opened. There are a few (YouTube videos for this procedure.)...
Question
Have a fuel line leak near tank. Had a leak in front of car 16 months ago. Got it fixed by dealership $500,-. Dealership says fir
This is not common at all for these vehicles to have fuel leaks. The two leaks would not be related to each other most likely. The new leak sounds like a leak at the fuel tank and may require tank...
Question
Car won't start but cranks over gas gauge is broke
Hello, thank you for writing in. All signs thus far point to the fuel pump going out. You can test the available power to the fuel pump to ensure the pump is being supplied with the proper voltage. You can...
Question
Got hit by the gas tank on a 2000 nissan maxima now axel looks bent. What else might be broken
Hello, thank you for writing in. In the area of the fuel tank and axle, there are likely fuel and brake lines to be concerned about. This is in addition to the components related to the wheel, axle, and fuel...
Question
Tainted gas repair and routine spark plugs replace, $2500, is this fair?
That seems a little extreme. It helps to know what kind of contamination you are talking about. For instance, if the car was vandalized and someone has put sugar in the gas tank, then you will probably have to do...
Question
gas gauge works but always reads as if it where full even if no gas is in the car
The fuel sender inside the tank is most likely open circuit or short circuit and needs to be replaced inside the tank on the pump.
Question
1999 Ford Ranger 2.5L. #3 and #4 cylinders are not firing, #2 sometimes doesn't fire.
You should first check the fuel pressure is within specification. Then check plugs are getting fire and then do a compression test on all 4 cylinders. If all this is normal then remove injectors to look for clogged injector inlet...
Question
My 1997 Cadillac diville will crank but dies after a few seconds even if i give it gas yet sometimes will crank and run fine
Hello, thank you for writing in. Electrical issues with the anti-theft system can mess with the functionality of the vehicle. This does not mean that this is the cause of your problems, but is worth inspecting further. If it feels...
Question
I have a Santa Fe and it has been sputtering and jerking when I come to a complete stop, shortly after dies and will not start bac
The problem sounds like you are flooding out on fuel or have a stuck open valve for the variable intake. Since the vehicle will not restart you will need to have mechanic like one from YourMechanic come to you and...

Need a mechanic?

Our certified mobile mechanics make house calls in over 700 U.S. cities. Fast, free online quotes for your car repair.

Get a quote

Post a question and get free advice from our certified mechanics.


Ask a question