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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9answers
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Diesel vs Petrol motorcars. Pro's and cons?

I realize this may be a silly question to those of you on here who are proper petrol-heads and this may even be a repeat question, but I could not find anything on it on here, so here goes: What are ...
7
votes
3answers
3k views

Difference between high octane and low octane?

What is the difference between high octane and low octane fuel? I'm not asking if one is better than the other for my vehicle, specifically, but rather what occurs differently both scientifically and ...
3
votes
2answers
560 views

What will happen if there is something else also with petrol in car

Today someone broke my car fuel outer case and taken out fuel. I came home by driving but then i have now one doubt in my mind. What if he put something else in tank like water, sand, etc in there. ...
4
votes
3answers
4k views

Could a faulty fuel level sensor cause a vehicle to stall?

I have a 2007 Hyundai Santa Fe with just over 90,000 KMs and recently the fuel gauge started to fluctuate wildly. I had the sensor's replaced and filled the tank and it only showed half full. So one ...
0
votes
1answer
82 views

Blue smoke upon acceleration and pinking

I have a Y12 Wingroad Nissan. While driving at 100km/hr and I stop, and begin driving again, I see a lot of blue smoke from exhaust for a little while. I also get a flat spot and pinking when ...
1
vote
0answers
26 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 ...
3
votes
2answers
420 views

What is E85 gasoline and how can I avoid it?

My new mower says not to use E85 gasoline. What is E85 gasoline, why should I avoid it, and how do I know if I'm buying it?
2
votes
2answers
116 views

00 honda accord ex 3.0 coupe fuel pressure problems

My car was caught in the flood that we recently had about a week ago in west phx, az. My car starts, runs, but in the flood my car got water in the oil pan, tranny, so I gave it an engine flush ...
3
votes
1answer
1k views

1991 Chevrolet S10 - Sputtering, hiccups, stalling, bad acceleration

I'm having a problem with my pickup; It's a 1991 Chevy S10, 2WD P/U, 2.5L I4 engine with around 185,000 miles on it. It's the Iron Duke engine, a throttle body injection motor. I'm not a mechanic, ...
1
vote
0answers
136 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 ...
2
votes
2answers
136 views

Mercedes 2.7CDI C Class 2004 Hard Starts

My 2004 2.7CDI gives me a hard start when I am starting it the first time in the morning after parking it over night it but works and starts perfectly thereafter till the next morning. The fault does ...
5
votes
3answers
2k views

Car stalls when braking (VW Mk1 Golf)

I have bought a Mk1 Cabriolet that has been sitting for over a year. I am trying to get it road worthy. So far so good, but I am having an issue with the engine and braking: The engine stalls when I ...
1
vote
0answers
30 views

Diesel Engine throwing fuel from last engine pipe when engine starts

I have 2002 Hyundai Accent with diesel engine. It is throwing diesel from engine when gives speed. It sprays lots of oil from last diesel pipe. And in neutral when I start the engine. Its throws a ...
3
votes
1answer
521 views

Possible fuel filler leak in F-150 truck

I have a 2001 Ford F-150 pickup. When I refueled it yesterday, I noticed a strong gasoline smell and an oily liquid (presumably gasoline) dripping down off the bottom of the fuel tank. Only a small ...
50
votes
9answers
17k views

What are the benefits of premium (high octane) petrol?

Here in the UK it's common for petrol (gas) stations to offer both regular and "premium" unleaded petrol. The premium stuff is (naturally) more expensive, and I've often wondered what the actual ...
4
votes
8answers
10k views

When given a choice between octane 89 and 93, which should I choose?

I just recently got a 2005 Volvo S40 with a turbo engine; I want to take good care of it, so naturally, when the instruction manual recommends 91 octane fuel but says it takes a minimum of 87, I have ...
6
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3answers
23k views
6
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2answers
4k 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 ...
1
vote
1answer
48 views

What does 'M10 x 1.00' mean when referring to fuel injectors?

I need to replace some fuel lines (from the injector control to the injector) on my 93 VW Cabriolet. The site that sells the lines has 2 options for the 'Injector Size': M10 x 1.00 or M12 x 1.5. I'm ...
2
votes
1answer
1k views

Symptoms of a clogged fuel line (pump runs but engine not starting)?

I removed the in-tank fuel pump from my '93 Golf Cabriolet to fix a fuel gauge issue. I noticed a small tear in the mesh filter that goes over the intake nozzle of the pump. I replaced the pump but ...
6
votes
1answer
164 views

Why are V engines less smooth?

I'm learning how to ride a motorcycle on a Suzuki Gladius SFV650, with a V-twin engine. But I also had the chance to ride a Kawasaki ER-5, which has a parallel twin engine (550cc). I've noticed that ...
5
votes
2answers
568 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 ...
-2
votes
1answer
40 views

Fuel saving devices, working or not?

It is claimed that a small unit installed in the fuel tank can save fuel 20-30%. The basic principle is reducing loss of volatile compounds via negative charged air. I really doubt the principle. (1) ...
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vote
4answers
3k views

Why does a diesel sound like that?

My car is in the shop for a repair, and they gave me a loaner. It's a Chevy Cruze Diesel. Sitting on the driveway, my wife said, "It sounds like a truck". It does. So what exactly it is about ...
20
votes
8answers
44k views

Will higher octane fuel improve gas mileage?

I've heard from some people that high octane fuel will increase gas mileage. Around here, we have the basic unleaded(87), mid-grade(89), and premium(93 or 91). I've been using the basic 87 unleaded ...
1
vote
1answer
72 views

Accent diesel car battery type

My old car battery (Exide Express) is totally dead. Now I am buying a new battery. I want to know which battery is the best battery for my car (diesel 2002 model). My car model is a Hyundai Accent ...
2
votes
3answers
286 views

Is Petrol usage Proportional to Gas Pedal position

I was wondering about this the other day. Is the petrol usage in the car only influenced by the position of the gas pedal? So for example if I take my foot of the gas and coast for 30 seconds, would ...
4
votes
3answers
19k views

What would cause a car to lose power a few seconds after starting, then run normally?

I start my 2003 Honda Civic each morning and drive to work. A few hundred feet down the road, the engine will sometimes behave as though it is running out of gas and lose power momentarily. It ...
3
votes
2answers
112 views

Front info panel in VW Golf Estate Diesel 1,9 TDi 2008

I bought a couple of days ago VW Gold estate diesel 1.9 TDI Bluemotion from 2008. Unfortunately, the previous owner did not provide a manual for it and this is insanely expensive to order the ...
0
votes
3answers
40 views

My Chrysler 300

someone put sugar in my tank I had it dropped and clean but when they put it back together when you drive at 35-40 mph, it vibrates underneath the car what do you think it is?
1
vote
2answers
320 views

Does engine performance decline over time, and if so, how much?

I currently drive a FIAT Punto 1.2 Active 3dr which is just over ten years old and sits at 68,000 miles. I've had the car for four years, and it's been serviced once during that period, when I got it, ...
1
vote
2answers
394 views

P0442: Faulty EVAP System

After seeing my CEL come on in my '05 Mazda 3 (just passed 100K mi.), I used my code reader to find out that the code was P0442. So I naturally came to this website to see what I could find on the ...
2
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0answers
216 views

diesel pressure issue Fiat Punto 1.3 JTD

I have a Fiat Punto 188 1.3 JTD Multijet and an issue, that brings me a headache since 2 years. The car is from 2005 and already has 180 000 miles down. Almost every time, the I fast accelerate from ...
3
votes
3answers
960 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 ...
0
votes
1answer
70 views

Can I install nano fuel economizer for carb type toyota 3A engine?

Can I install nano fuel economizer for carb type toyota 3A engine? Will it help to improve fuel consumption of my car without any issue?
2
votes
1answer
87 views

Small Engine Storage

I get conflicting info concerning small 4-cycle engine storage and would appreciate any recommendations. My snowthrower is stored in the off season April thru Oct. The manual for the engine says run ...
0
votes
0answers
61 views

Where can i find my car's schema?(seat ibiza ST 1.6 TDI)

I have a seat ibiza ST 1.6 TDI. Where can i find a schema which shows me where is the general parts(break hydrolic container, ECU etc. )
1
vote
2answers
721 views

Car sputtering with the engine hot at start (or within ~2 minutes)

My 2004 Hyundai Sonata cold starts great (i.e. when I first get into the car for the day, morning or afternoon). The problem I have is that when I stop the car after driving around for a while it ...
0
votes
1answer
228 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 ...
1
vote
4answers
972 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? ...
2
votes
1answer
182 views

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

I have a Golf Mk2 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 ...
6
votes
5answers
9k views

Doing my own fuel induction service - how to, and how difficult?

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 on. ...
0
votes
1answer
186 views

Lancia Delta Integrale Fuel Pump

I have a Lancia Delta Integrale with a suspected fuel pump problem. I tried to start the car by spraying some Bradex Easy Start into the air intake. It fired for one or two revolutions then stopped. I ...
0
votes
2answers
72 views

Most economical acceleration range

I am designing a GPS based acceleration meter for car. I'm planning to give user some scores based on his various acceleration practices. Not going to the electronics part of GPS, i want to know in ...
1
vote
1answer
1k views

Sea Foam vs Sta-bil

Is it unnecessary to use both Sea Foam and sta-bil at the same time in two stroke and four stroke engines, or is it advantageous to take advantage of the properties of both? Both products claim to ...
1
vote
0answers
822 views

Fuel Consumption and other Fuel related data from basic OBD-II parameters

I want to know how can i obtain the values of Fuel Consumption, Fuel Economy and other fuel related information from basic OBD-II parameters like Vehicle Speed, RPM, TPS etc. I have noticed that not ...
3
votes
3answers
499 views

2003 Nissan 350 Z won't accelerate

We own a Nissan 350 Z and this morning it would not start. It would turn over but it wouldn't fire. After pulsing the gas a little bit it would start but then letting off the gas would cause it to ...
2
votes
1answer
247 views

Volume of fuel reserve in MB E200 W211 2004

I wonder how much fuel is still left in the reserve tank when the yellow fuel reserve indicator lights up in Mercedes-Benz W211 E200 Kompressor (2004).
0
votes
1answer
154 views

Fuel injection mechanism

It is hard to imagine injecting spray of fuels at several thousands rpm. How is it possible to pump liquid fuel at such high frequency?
3
votes
1answer
86 views

Bent flap inside fuel filler

I have a 2001 Ford F-150 pickup with a gasoline engine. There is a thin metal flap on a spring that is supposed to cover the opening in the fuel filler neck, which the fuel nozzle would normally push ...