Questions tagged [fuel-system]

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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votes
3answers
3k 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 ...
0
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0answers
31 views

Power to fuel pump drops on engine crank

I have a Mk1 Golf with the injected engine. I have not been able to get the car to start due to no fuel reaching the engine. I have tested the fuel pump with a multimeter and have noticed the volts ...
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0answers
958 views

Why does my 2015 Ford Fusion not want to start after putting gas

The last couple of months my car has a hard time starting when I put gas in it. It doesn’t matter if it’s half tank or almost empty. It started with sputtering and hesitation and now it just tried to ...
5
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1answer
20k views

Car can't speed more than 100km/h

Last few weeks I get back from my hometown which is 200km in distance. For the 1st hour I travel using federal lane where I only speed less than 90km/h because of traffic and to avoid speed trap. As ...
2
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0answers
73 views

USA vs Europe fuel injector differences?

This question is out of curiosity as I didn't find any specs or datasheets after plenty searching. What would the differences in the fuel injector be for Europe vs USA markets? I've compared ...
1
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1answer
46 views

What are the consequences of using a relay that seems to cause the fuel pump to be on all the time?

The fuel pump relay in my Mk1 Golf (1.8lt, injected) died. To get home I swapped it with the Load Reduction relay. The car worked fine, except that now when I turn the key to Accessories the fuel pump ...
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0answers
75 views

How fuel gauge works?

Can any one help me to understand the working theory for this fuel gauge. Is this similar to old type or does it has a digital sensor? This sensor belongs to Man-vehicle, its labeled as man tx-d683. ...
1
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0answers
184 views

High concentration fuel detergent effects on oil

I just did an oil change. I was planning on putting some fuel detergent in the tank and run in through before the oil change but forgot. Can I still put it in now without having negative effects on ...
3
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2answers
197 views

No acceleration until depressing gas pedal some more, OBD shows P0170

My Mercedes CLK230 (1997, 4 cylinder) has the following issue: when I depress the accelerator pedal, (almost) nothing happens until a certain angle (not too much but clearly noticeable), and after I ...
3
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4answers
12k 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 ...
2
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0answers
104 views

Crystals forming on fuel filter after removal

I recently replaced my fuel filter on my Mitsubishi Mirage (1994, 4G13, 95000Km). After having replaced it crystals (white, <2mm) had formed on both the inlet and outlet pipes. It was ~10°C at the ...
2
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0answers
62 views

Car keeps breaking fuel injectors?

Ok so i'm having quiet a strange issues with one of my cars (08 X5 E70 4.8L V8) that may be worth discussing. It seems to keep "blowing" through injectors on only one bank. Suddenly i noticed CEL and ...
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0answers
39 views

Engine dies after running for 30sec

so I have an old Renault 4 cylinder inboard boat engine here. it's older than I am and has a carburettor which you initially fill with gas by pumping it manually from an external tank using one of ...
2
votes
1answer
71 views

How long is a fuel cell expected to last?

How long is the fuel cell used in cars (like the Hyundai Tucson Fuel Cell or the Toyota Mirai) expected to last in terms of mileage or time? What kind of loss of performance is expected, like lower ...
6
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6answers
16k views

Add 2 stroke oil to a 4 stroke petrol engine during burn-in period

I'm planning to get a new petrol (gasoline) car soon. A friend of mine, who worked as a motorbike mechanic when he was young, told me he puts a small quantity (125 ml / 4 oz) of 2 stroke oil in the ...
8
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2answers
9k views

What is this pipe coming out of the petrol tank under the seat

Sorry, this is a newbie question, but what is this pipe coming out from the petrol tank under the seat? The bike is a 1989 Kawasaki ZZR 250:
3
votes
1answer
2k views

What is a replacement Fuel Injector for a 1985 Mustang SVO?

I am trying to buy a set of "Brown Top" fuel injectors, which are supposed to have come from a 1985 SVO 2.3 L Turbo. They (obviously) have a brown colored top section and a pintle. I can't see any ...
16
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5answers
77k views

Can I use lower octane fuel at high elevation?

Here in Colorado, gas stations sell "regular" gasoline which is rated at 85 octane ((M+R)/2). In most of the rest of the US, 87 octane is the lowest grade available. (As noted previously, higher ...
8
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4answers
8k views

Is it okay to run aviation fuel (100 low-lead) in a dirt bike?

I'm wondering if it will be okay to run 100 octane low-lead aviation fuel in my 2007 RM250 motocross bike (two-stroke). Half of the people I've asked say yes, while the other half say no. Will it be ...
1
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3answers
117 views

Fitting secondary fuel filter

My 2005 Daihatsu Copen has a "lifetime" fuel filter, inside the fuel pump housing, located in the fuel tank. I am wary that, over time, crud will get sucked up by this filter and saturate it. What ...
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0answers
42 views

2005 Chrysler Town and Country: engine is little choking once started

I recently bought this van with only 100K miles second hand (meaning from the previous owner, not from the dealership). He was an older guy, probably didn't really had time to keep the vehicle up to ...
5
votes
1answer
67 views

Gas filled my engine

I'm a little puzzled on my 33 I have a 302 ( stroker 363 )) Dart block with brodex heads with a small blower. after blowing up my power glide I pulled the engine and just now reinstalled it. after ...
10
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2answers
18k views

Power loss in truck - triage options?

I've asked at least one question about my specific situation earlier, but at this point, I'm looking for information on how to operate in triage mode, my primary goal is to get my truck working well ...
35
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11answers
11k views

What is in fossil fuels that we can't mass produce?

Since fuel is made up of different molecule chains, my question is what is the reason we cannot create the same molecule structure and be able to reproduce the same structure in a lab so we don't have ...
2
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1answer
33 views

'92 Lumina needs throttle input to stay running

My 1992 Chevy Lumina 3.1 starts very rough; you have to press on the throttle to start it and it sputters - almost dies - in gear. I put a new fuel pump in a couple months ago and today I put a new ...
2
votes
1answer
404 views

Evap vent valve normally open - fuel vapors don’t leak out?

I’ve been reading up on general evap system operation and apparently the canister vent balance is normally open to the atmosphere and closes during leak testing and when vapors are being pulled into ...
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3answers
2k views

Gas pedal floored yet the car can't reach maximum speed

I'm running a manual Opel Corsa 2005 Sedan (engine code: C16SE, 1600cc). The problem I'm encountering is that the car won't reach its maximum speed of 200km/h as similar cars do. Instead, it stops ...
6
votes
7answers
67k views

Racing Fuel (100 Octane Rating) - Better than Premium?

Earlier today while driving out East on Long Island I stopped to fill my tank with gas, and at the station, all the pumps had the usual Regular, Mid, Premium on one pump, but on the 2nd pump which ...
17
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2answers
6k views

how to optimize fuel consumption by changing the rear differential ratio?

Is it possible to improve the fuel consumption (decrease it) in my van by changing the rear differential ratio? I would like to optimize it for low-speed driving about 40 km/h (25 mph). Is it true ...
0
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1answer
21 views

no fuel to carburater on new Kohler CH668 engine

I installed brand new Kohler CH 668 in my mower. Motor does not start, fuel comes to carburator, but no fuel sprays into it. When pouring small amount of gas into carburator, it will run for a few ...
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1answer
40 views

Fuel Pressure Relief Procedures - Evaluating Different Approaches

Relieving fuel system pressure is obviously an important prerequisite to many repairs and maintenance tasks. However, it seems as if there are a variety of recommendations to relieve the fuel pressure....
2
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1answer
1k views

Engine starts but almost immediately cuts out 3 or 4 times when starting

I have a Golf Mk1 that has been sitting a while and I am fixing up. When I start the car the engine catches but then dies almost immediately. I have to restart the car 3 or 4 times like this until the ...
1
vote
1answer
295 views

Why does my car have very poor acceleration?

I have a 2009 Peugeot with the 308 cc THP engine. The car has poor acceleration. Here are the codes: P2191 P2261 P2262 P0243 P0299 What do these mean?
2
votes
1answer
628 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 ...
1
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0answers
77 views

What do I do after adding extra oil/gas mixture into the car, which now won't start?

The car, (Toyota 4Runner), won't start after we put some old oil/fuel in. We had read that it's fine to do with unneeded oil. We topped off the tank with regular gas to dilute it, but still not ...
2
votes
3answers
505 views

how do I clean 4 qts of 10W30 out of the cooling system,

By mistake, I put 4 qts of 10W30 engine oil in my radiator. How can I clean it out? I've seen suggestions for using dish washing detergent. Is that safe? I am thinking of using DAWN because it ...
12
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1answer
1k views

Do I need any special maintenance plan for a car only driven a every couple of weeks?

I work from home, so I seldom need to use my car. It's kind of nice that it can stay cleaner in winter, too. I could probably get away with almost never driving it winter, but I haven't prepped it ...
3
votes
1answer
233 views

How does EVAP interact with a vehicle?

I have an EVAP system (mandated by California) on my Yamaha FZ-07, but only a minimal idea of how it works. First of all, it looks like my fuel tank has a separate "breather" hose separate from any ...
5
votes
1answer
300 views

Car stumbles and stalls after adding fuel additive

I have recently replaced the fuel filter and added a fuel additive of my Cayenne, both are bought from Porsche company, but the very next day I drove my car and it starts to stumble and stalls. Would ...
0
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1answer
35 views

Fuel Economy Calculation

There are 2 possible routes in the morning. A 19 Mile route (which is mainly motorway). Average speed is 60 Mph and the average mpg is 45. Or a 11 route, flat ground but it's mainly city so the ...
3
votes
1answer
2k views

Corolla gives me a P0170 code

I had an issue when sometimes my 2000 1.8L Corolla stalls if I roll in reverse. A few weeks later, I got a check engine code pointing to Bank 1 Sensor 1 as an issue. I replaced it, cleared the codes ...
6
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0answers
211 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 ...
15
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6answers
37k views

How exactly does running fuel-lean increase the temperature of ignition?

I learned in this question that running an engine fuel-lean will increase the temperature of ignition, among other things such as causing problems with the catalytic converter. I have no idea how or ...
24
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4answers
366k views

Symptoms of Lean or Rich carb settings on a motorcycle

I have a 1981 Yamaha XS650. I recently put in K&N stock replacement filter (ie, they are in the airbox and conform to the size of the original), however they may be leading to a leaner mixture ...
1
vote
0answers
271 views

Mazda Demio fuel gauge not working

Everytime I fill up it runs out quite quickly and I’ve just recently tried to fill up again and the reading hasn’t moved at all... help me? it’s a Mazda demio 2010 I haven’t had it for very long but ...
2
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1answer
99 views

What causes a code po300

2003 chevy Silverado has check engine light on but it flashes and won't go solid. It use to happen when it was wet or raining out but now its all the time. Could it be a ground issue
10
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3answers
4k views

Cleaning fuel injectors?

I took my car (2006 Honda Civic) to firestone to get an oil change and they told me I should get the fuel injectors cleaned. I was in an Advanced Discount Auto Parts store the other day and I noticed ...
0
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1answer
3k views

Engine shuts off while driving

My classic 350CC is 4 days old. I have experienced an issue that I am riding the bike the engine cuts out. The fuel tank has close to 6 liters of fuel and set the fuel knob to ON. I immediately ...
2
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0answers
60 views

Went thru puddle now says im out of gas?

I have 13 Ram 1500. I recently replaced fuel pump and sensor and battery. Last night i filled up my tank . i wound up going through a huge puddle as we had flooding. Next thing i knew my gas light ...
6
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2answers
24k 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 "...