Fuel system covers the components of a car responsible for fuel delivery; tanks, pumps, filters, pipes. Questions on carburettors and injection systems have individual tags

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Oil pressure and fuel pressure formula

Can someone give me a formula to calculate Oil and Fuel pressure of a car engine? Consider a small passenger car. I have information like Total distance travelled, speed, rpm, MAF, MAP, Intake Air ...
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1answer
50 views

2002 4Runner - Smell of fuel by drivers side

I smell fuel off the drivers side wheel well of my 2002 4runner. My check engine light is on and I changed my gas cap. The lights went out and back on. I think it's the connection. It has a cover ...
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1answer
42 views

Inaccurate fuel gauge

Is there anything I can do about my inaccurate fuel gauge? Today it was at the bottom of the red zone, and I put in 9.5 litres and it went up to half a tank, but the tank is 42 litres. I have an ...
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1answer
311 views

Old gas in 2 cycle engine

I have a 2 stroked engine that sat for over 2 years. I drained the gas and can get it to turn over when I put starter fluid in the carb. it is blowing out a water substance from the muffler and cuts ...
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1answer
390 views

Does the air screw only affect the pilot jet?

I have a 2 stroke motorcycle, it's Kawasaki KR150. When I try to do some jetting on its carburetor (it's Keihin PWL26), I saw that there's an air screw. So now I've been wondering about this air ...
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1answer
35 views

Possible Fuel pump damage

My Toyota Vitz 2007 idles very rough. Sometimes it stalls if I suddenly stop after few miles drive. I took the vehicle to a mechanic and he cleaned up the fuel pump. He used compressed air to clean ...
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209 views

How do maintenance costs compare between gas and diesel engines?

Our landscaping company is going to purchase a new medium duty truck. We have diesels and had just defaulted into looking for another diesel powered truck. However the mechanic we use (and trust) said ...
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1answer
148 views

additech fuel additives - good idea or not?

When you get gas from a Wal-Mart that has a gas station you can pay extra for fuel additives. $14.99 for a "fuel system service", which is supposed to offer "complete fuel system cleaner", $2.99 for ...
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3k views

Gasoline is dripping out of a rubber tube outputting on the bottom of my motorcycle - is this normal, or is it a problem?

What bike? A BMW 650, 1996 model. What's the problem? I noticed a slow, but steady, drip of gasoline from one of two rubber tubes that output to the bottom of the bike. I think the other rubber ...
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4answers
3k views

What could be the reason and solution to a sudden drop in mileage?

Got my Suzuki Swift Diesel serviced two months back, and all of a sudden the mileage dropped from 20kmpl to 12kmpl and that is confusing! After i returned to Service shop, the guy said that there is ...
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3answers
58 views

Leaking gas tank from rust - needs sealed. What materials should I use and how should I do it?

I have a gas tank that is leaking a few drips at a time. It doesn't seem like much of a problem except when the tank is at half full or past, and I can quickly lose 2-3 gallons overnight from the ...
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1answer
53 views

How do I check if I have bad fuel in my car?

I just brimmed my 2003 Opel Agila to the tank (35 litres) with regular unleaded from Tesco (large supermarket). On the way home, it just seemed to be completely gutless, and struggle a lot more when ...
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1answer
55 views

1991 BMW E30 - knocking when put into 1st

I knew I had a minor vacum leak, but it got worse all of sudden while at a stoplight. In trying to get through to the next block, the engine started to knock. (My guess is preignition thanks to the ...
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1answer
137 views

Cold weather and gas smell

When told the temperature was going to drop below freezing, I checked my car for antifreeze, made sure there were no liquids inside the cabin, etc. But now, when I start the car, I smell gasoline and ...
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2answers
53 views

1980 Chrysler LeBaron Failed Emissions Test

My 1980 Chrysler LeBaron (V8 318ci) just failed an emissions test. I'm coming from a state without emissions testing to a state that requires it. Specifically, the only part that failed was the ...
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2answers
2k views

Switching to a higher octane

This may be a very noob question to ask. But I recently got this car and was used with 92 octane petrol. However, to my negligence I overlooked the user manual which states to include 95 octane ...
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0answers
121 views

vauxhall vectra cdti sri 150 running problems [closed]

I recently had low fuel pressure problems with my cdti. I took it to a garage and got the high pressure pump changed. After that it started no problem but after 15mins of it running, it started ...
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2answers
80 views

Is there any protective sealant or bladder within a motorcycle tank?

I am learning metal work and will one day build my own motor cycle tank. Do these have any internal sealing or bladder?
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1answer
38 views

Car radio cuts out the car will not start

I have a Mitsubishi Gallant-2004. Just recently, while driving, the car radio will cut out then come back on. After about a minute of doing this it will stop working completely. Lights do not dim, car ...
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1answer
2k views

Should I run my generator dry in preparation for storage?

I think this is on-topic after reading the FAQ, so I figured I'd go ahead and ask. I gave my gas generator its scheduled 3-month interval "workout" last night, and after letting it run for about 30 ...
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1answer
71 views

1995 Yamaha virago 535 Fuel pump problem

On my 1995 Yamaha virago 535, why does the fuel pump click 10 or so times before trying to start? I've replaced the fuel pump and fuel pump relay. It still has the clicking issue and will not start. ...
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46 views

1993 Merc 300SE always stalling soon after startup, fuel pressure tests > 50psi

From the moment car starts to the moment engine stalls, which is about 40 - 60 seconds, fuel pressure is always above 50 psi. Can I safely conclude stalling is not caused by fuel system problems? I ...
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2answers
85 views

1993 Mazda MVP gets hot only when pressing on accelerator

We have replaced hoses and water pump and have had no problem with it getting hot. In the past week it has started to get hot, not overheated. It only happens after driving on highway when pressing ...
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5answers
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Doing my own fuel induction service - how to, and how difficult?

I was recommended to get a fuel induction service for a 2002 V4 Camry, and am considering doing it MYSELF. The reasons for considering this are: My car idles a bit rough, especially when the AC is ...
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2answers
66 views

Is it a good idea to top off the gasoline with higher octane fuel in a specific case?

When topping off the gasoline in a vehicle that is rarely driven (100 miles/month), is there any advantage in topping it off with a higher octane gasoline? I've heard stories that the octane of ...
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0answers
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2000 Kawasaki Vulcan Vulcan 800 Throttle Cuts at High Speeds (85mph+) [closed]

The bike starts fine but it coughs a lot when giving throttle in first gear. Runs great 2nd - 5th but when pushing around 85 mph or more the acceleration quits. The engine is still running but feels ...
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1k views

Marine Diesel fuel filter vacuum gauge spiked — filters are new

I've got an 80-HP marine diesel engine (in a sailboat, naturally). I've got a the Parker/Racor 75500MAX dual fuel filter system with an attached vacuum gauge to monitor resistance. For the first few ...
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2009 Volvo S40 sudden thump [closed]

When at constant speed I notice a slight thump. Almost as if for a split second the car lost fuel to the engine then kicks back in. It does not register on the instruments. Also at lower speeds it can ...
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1answer
55 views

How can I determine if it is more cost effective to run premium fuel in my car?

Every Time I fuel up my car, I collect my odometer reading, fuel price, and gallons pumped. A while ago I drove my car to almost empty and put 93 octane fuel in my tank, ran it to almost empty and ...
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3answers
5k views

Slow acceleration, high fuel consumption after spark plug change

I have a 2000 Ford Ranger 4.0 L V6 4x4 model. I recently was having some problems with the truck idling too low when cold and I decided to change the spark plugs. I put in 4 out of the 6 new plugs and ...
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2answers
33 views

The Ford Emission Control System light remains steady

I drive a 2008 Ford Escape. The Emission Control System Light turned on because I was running out of fuel. I was able to reach a gas station and put some gas but the light remains. Any thoughts about ...
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1answer
14 views

Fuel pipe on 2014 Accord

Had an auto body shop replace rear quarter panel. Gas hose nozzle keeps getting stuck. Seems body shop cut off the top of the fuel pipe, then reinstalled by crimping tabs they somehow created to ...
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2answers
73 views

Proper fuel type for Toyota Prius 2011

I have a 2011 Toyota Prius, and where I live there are only two types of gasoline: 90 and 95 (RON). In the refueling section in the car manual it says: "Use unleaded gasoline. (Octane Rating 87 ...
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5answers
1k views

how to increase mileage of petrol to match with diesel car

My relatives bought a diesel car and I found out that their gas mileage is better than my petrol gas mileage. Now, the price of petrol is soaring. Can I increase my mileage to match their gas mileage? ...
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1answer
65 views

How much gasoline fuel to keep in tank of low use vehicle

For a low use vehicle, it was historically recommended to keep the gas tank full. The reasons were twofold: Prevent rust from forming in the metal gas tank Prevent water from forming in the gas ...
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2answers
73 views

Car wont turn over after trying to get it out of snow

I have a 1998 Mustang V6. Last winter I attempted to get it out of the snow on an inclined driveway. I revved it apparently too hard and the engine sputtered for a moment and stopped. Since then it ...
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1answer
78 views

Burn through old gas or mix it?

Vehicle has been sitting unused for 3 months with a half tank of gasoline. Is it better to burn through that half tank of fuel, or mix it with a fresh half tank and burn through that mixture?
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1answer
146 views

Are there any modern diesel engines the require electricity to continue running?

I was reading this question about an owner checking the alternator by disconnecting the battery, which is an easy way to validate on a gasoline engine. The single answer assumes that the OP is ...
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1answer
104 views

1974 Ford Econoline E200 Van acts fuel starved after warm up

I have a 1974 Ford Econoline E200 Van with an 8 cylinder with the present symptoms: It starts and runs great, but once is warmed up, it feels like it is not injecting fuel. It loses power and slows ...
3
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1answer
683 views

My Honda Accord shuts off while on driving

Just yesterday i decided to get fuel from a place i usually don't , after driving for some hours my car just shout off , i tried accelerating but i couldn't so i parked . After some minutes i tried ...
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1answer
70 views

Checking a fuel pressure regulator that is out of the car

I happen to have a fuel pressure regulator of a petrol car lying around left by the previous owner and suspect that it might be still good, since the previous owner was just changing parts randomly ...
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0answers
192 views

Retrofit Ford 460 For Fuel Injection [closed]

I have a '78 Pioneer Jet Boat with a Ford 460 Big Block V8 as the power plant. Right now it has a Holley carb on it. We just started toying with the idea of converting it from carbureted to fuel ...
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2003 Chevy Cavalier (manual trani) stalls when coming to a stop after the car warms up

We have replaced the MAP sensor, the throttle position sensor and the fuel pump. None of these things made any difference. Also the problem is worse in warmer weather.
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Can't get gas in my truck

I have a 2004 Chevy Silverado. When I go to put gas in my truck it stops after like 3 dollars worth of fuel. Since I know it's not full, I click it again and gas shoots back out at me. What do you ...
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1answer
343 views

What causes too much fuel for my Briggs and Stratton engine?

I recently bought a generator that uses a Briggs and Stratton 17hp Vanguard engine. Before purchasing the generator, it had not ran in several years. The fuel was stale and the oil needed to be ...
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5answers
99k views

How long does it take for gas to go bad?

Approximately how long does it take for unleaded gasoline in the tank and fuel lines to become unusable in a car that is not being used? What causes this, and what can be done to prevent or remedy ...
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3answers
224 views

Is the fuel in my engine under pressure?

I have a 2008 Seat Leon FR TDi and need to change one of the fuel pipe (which has become torn slightly). The hose is ~ £50 + VAT so I am keen to do it correctly. Can anyone advise if the fuel in my ...
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1answer
257 views

How to remove air from the fuel line in a MK2 Seat Leon TDi

I have just changed two of the fuel hose (white and blue tipped ones) that lead to the fuel pump. The reason I changed them was because one of them was split and slowly leaking fuel. I have came out ...
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3answers
358 views

Replacing carburator with EFI

My car has a carburetor which I want to change to an EFI. I want to know what are the possible challenges in doing so, what I can think of are: Finding a match of an EFI which seamlessly replaces ...
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1answer
769 views

Altima 2006 2.5 S Code P0462 = Fuel Level Sensor A Circuit, Low Input Fuel Gauge Is Inop

My fuel gauge does show a full tank when filled, however as fuel is used the gauge will not read accurately. I'm getting the fault code - P0462 Fuel Level Sensor Circuit Low Input Which is ...