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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Why is a volume test necessary when diagnosing fuel delivery problems?

I suspect my fuel pump causing intermittent driveability issues. I checked the fuel pressure at the fuel rail and it seems like the pressure is fine: ~2.4 bar at idle, 3.1 bar at engine off (3.09 bar ...
5
votes
1answer
72 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 ...
2
votes
3answers
110 views

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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2answers
835 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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3answers
100 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
77 views

Motorcycle petcock leaking around bolts to tank

My petcock is leaking I originally thought it was internal do I took it apart inspected all the gaskets and seals and have it a good cleaning after reassembly it was still leaking and after a better ...
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1answer
82 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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3answers
65 views

03 Chevy Suburban Fuel Pump Failure

A few days ago, my dad's Suburban was running while sitting on a steep driveway with a low level of fuel in the tank, and the fuel pump suddenly cut out. Knowing that fuel pumps can wear out from heat ...
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1answer
46 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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1answer
233 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
56 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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1answer
50 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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2answers
117 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
171 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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votes
1answer
74 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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0answers
60 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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1answer
285 views

2001 Infiniti QX4 rough idle - leaking fuel damper vacuum port

I have a bit of an involved problem, so I’ll break it down a bit and try to provide as much detail as possible. My main problem: I have a rough idle on my 2001 Infiniti QX4. It’s not extremely ...
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votes
1answer
586 views

Why is there a hissing noise when I open my petrol cap?

When I fill up with fuel, there is often a loud hissing noise, as if you are opening a bottle of fizzy drink or something whenever I unscrew the petrol cap. It also seems like there are vapours ...
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0answers
111 views

Replace 2009 Cobalt LNF Fuel Tank Pressure Sensor and Shroud

How difficult is it to replace the fuel tank pressure sensor and shroud on a 2009 Chevrolet Cobalt (LNF/SS)? The shop just quoted me over $200 for this. From what I can tell, the parts should be ...
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0answers
47 views

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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votes
2answers
88 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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vote
0answers
16 views

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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vote
1answer
73 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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2answers
35 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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2answers
105 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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votes
1answer
80 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 ...
3
votes
1answer
107 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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2answers
81 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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votes
2answers
436 views

Sputtering and jerking while driving

I have a 2003 Ford Focus and it started sputtering a month ago. I've put gas treatment in and if I keep a full tank it's fine, but once it gets around half a tank it sputters. Now it sputters the ...
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votes
4answers
1k views

How critical is it to match the stock fuel pressure regulator pressure when replacing it?

My fuel pressure regulator needs replacing, however the original part from the manufacturer is outrageously expensive. While looking for less financially painful alternatives I've seen much cheaper ...
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votes
3answers
2k views

What is the Fuel Tank Ventilation Valve?

Asking this for a friend. Their mechanic says the fuel tank ventilation valve is broken. What is the fuel tank ventilation valve? What does it do? Is it an important part? If yes, Why? EDIT: In ...
2
votes
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 ...
2
votes
1answer
106 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
242 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 ...
2
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0answers
46 views

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.
4
votes
2answers
188 views

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 ...
5
votes
2answers
715 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 ...
2
votes
3answers
387 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 ...
3
votes
1answer
71 views

Fuel line leak - can't separate disconnect

('04 Cavalier) I have a leak in the (steel) fuel return line, just where it mates with the plastic line from the tank. I have released the latch on the 'quick' disconnect, and, with effort, I can ...
2
votes
1answer
1k 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 ...
2
votes
1answer
193 views

Why aren't fuel pumps powered by drivebelt?

I was reading about fuel pumps, which are electric powered. I was trying to understand why they wouldn't be part of the drivebelt assembly and my guess was that they need steady pumping rather than ...
2
votes
1answer
100 views

How do I troubleshoot a P1443 code for a Chevy Equinox

I have a 2012 Chevy Equinox LT that started reporting code p1443, and has started to die from time to time. This happens when the Equinox is at rest, either in gear or in "Park," then begins moving in ...
5
votes
1answer
56 views

Fuel rail pressure port size on 1985 Porsche 911

What fitting do I need to attach my pressure gauge (female 1/8" NPT) to the port on the fuel rail? I know the port is metric but I'm not sure of the size.
2
votes
1answer
455 views

Is it possible to check if the fuel filter on a Yamaha XJ600 is getting clogged?

Right after buying an used Yamaha XJ600N, I found that the rust in its fuel tank had clogged the fuel filter causing the motorcycle to lose power and until the engine died. The service station cleaned ...
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votes
2answers
7k views

I accidentally fueled my car with E10 (10% ethanol). What should I do next?

So I have a 2000 Honda Civic LX that is around 130k miles now. In Las Vegas, I put E10 (I hadn't known what it was before this...), and had to get it fixed. The engine light had started blinking and ...
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votes
3answers
1k views

2001 Maxima starts but won't stay running

I have a 2001 Nissan Maxima 3.0L V6 that starts no problem but dies almost immediately. If I give it gas as I start it and hold the idle around 1500-2000 for a few seconds, then ease off, it will stay ...
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0answers
63 views

no fuel pressure after changing fuel regulator

I own a 2001 blazer 4.3lt 4 door 4wheel drive. I was having a hard starting problem several attempts to start before it would run on a few occasions it would back fire through the intake manifold. ...
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votes
1answer
259 views

Will a 95 4AFE engine work on Euro 4 gasoline?

I am hearing news in our country that they might upgrade our fuel from EURO 2 gasoline to EURO 4. I am worried that it might damage the engine on my 95 corolla, which I still plan on keeping for at ...
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vote
1answer
128 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 ...
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0answers
9 views

2004ToyotaTundra sitting 10 months [duplicate]

my 2004 Toyota Tundra (8 cyl) has been sitting for 10 months with about 7 gallons of gas in fuel tank. Should gas be removed before starting truck?