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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Driving with old fuel?

I haven't used my car in a while. The last time I refueled was back in December. I've used it a couple of times but nothing very significant, so I have over 30% of a tank left. Yesterday I drove it &...
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Carburetor not drawing fuel from tank

So the title is kind of generic, but I am facing a bit of a weird situation. I am going to explain it first, but I also have some pictures at the end that might help. I have bought a cheap 2 stroke ...
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1 vote
1 answer
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Do you need to bleed the fuel system after a filter change?

I put a new fuel filter on my car (2002 Citroen Saxo, 1.1 petrol engine) yesterday - pretty simple, just unclipping the lines from the old one and putting the new one in the same place. It's located ...
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1 answer
32 views

My car engine turns off while driving

I have Tata Tiago 2017. I am facing a problem specially in summer. When I drive more than 100 km car engine automatically turn off after 1-2 hickups. If you try to start again it works but again after ...
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3 votes
1 answer
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Briggs and Stratton Stalls after Sea Foam Treatment

I have an older 2cyl 16hp Briggs and Stratton engine on my old garden tractor. I inherited it with my property purchase, so I have no idea how it's been maintained. I put new gas in and changed the ...
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2 votes
2 answers
58 views

What would cause multiple frequent fuel pump failures?

1986 Ford F-150 with a brand new fuel tank and fuel lines has gone through 4 mechanical fuel pumps in a couple of months. I put a sock on the pickup tube (was originally missing), an extra fuel filter ...
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13 votes
6 answers
4k views

Ford Focus hard to start after fueling

I own a 2014 Ford Focus, with a 4-cylinder turbocharged engine. A few years ago, it developed a rather interesting issue. After I put gas in the tank, it gets hard to start, and is hard to keep ...
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My fuel gauge is not reading my fuel level accurately

1998 suburban c1500 replaced fuel gauge with a known working gauge, installed a new fuel pump assembly. when you turn the key on the gauge jumps like normal and truck runs great what can i check next?
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Erratic running with smell of gasoline, then dies

Spits sputter smell of gasoline when it happened and then dies. Restart car and does same. Check engine light is on now. 2013 Ford Fusion Turbo SE 2.0L Ecoboost 76,000 miles. While idle it starts to ...
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1 vote
1 answer
25 views

Quirky starting

I'm the one who asked the question Monday about gas fuel pump situation. Well fast forward to today 3 days later. Car starts sometimes other times dead.not even a click. Last night started right up . ...
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2 votes
0 answers
36 views

Engine modifications when using waste vegetable oil

I'd like to ask what engine modifications is needed for converting a car from B7 diesel to used vegetable oil (uvo) ? I have an old BMW from 2013 and has bought filters to externally clean the uvo ...
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2 votes
1 answer
43 views

Corolla EVAP Canister Location

i’ve recently have problems with filling up my fuel tank because the pump keep shutting off early. Most youtube videos point to the evap charcoal canister to see if it’s clogged up. But I can’t see ...
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1 vote
1 answer
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Hard Starting when Warm

I have a 2001 Ford Explorer, 4.0L V6 and It likes to hard start after running. If I start it up in the morning it has no problems if it sits for 3-4 hours when its cold outside it starts up no problem....
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1 vote
1 answer
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Mercedes S205 sometimes I smell fuel

In my Mercedes C180 T sometimes I smell fuel. I can reproduce it with the following steps: when the engine is stopped after a route and become cold first time when I open trunk door or only I press ...
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2 votes
0 answers
47 views

How to arrive to an instantaneous estimation of fuel consumption using OBD2 ELM327 parameters [closed]

Problem details Hi my friends, i'm working on a project in vehicles field, and i want to make a system to estimate number of fuel litters consumed in each second or any time unit, using the OBD2 ...
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3 votes
1 answer
54 views

Fuel Pressure Build-up Question - Honda CRV 2005 as reference

I'm troubleshooting my 2005 CRV - not starting. I had replaced the fuel sending unit as it was dead. The new one spun up and I put the fuel pump assembly back in. I understand the pressure should be ...
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100 views

2005 Suzuki katana 600 carburetors not delivering fuel

I have a 2005 katana that was given to me I cleaned the carbs and it ran ok. I was riding it for a few weeks then overshot a corner and crashed, the damage wasn’t too bad scratched some plastics and ...
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48 views

old American car started stalling on idle after long maintenance in a shop. What could be the causes?

Early 90s Buick, car has not stalled in a long time. After extensive maintenance which fixed injection issues, suddenly acquired distinct stalling on idle behavior. Starts ok in traffic, but still ...
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6 votes
4 answers
2k views

Engine start is OK but dies when applying throttle

Triumph Tiger 900 (1994) The engine starts fine and idles with choke. When I reduce choke and try throttle it just dies. Regardless of choke position, when I throttle, the engine dies. Thus, I cannot ...
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1 vote
2 answers
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Help diagnosing an O2 code - running rich, bad sensor or bad cat?

I've been (increasingly frequently) occasionally getting an O2 high voltage code for Bank 1, sensor 2 on my vehicle - P0138 (2009 toyota matrix, 1.8L). The code would often resolve itself within a ...
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2 votes
3 answers
61 views

'16 Mazda CX-5 failing HC-PPM emissions test?

I have a 2016 mazda cx-5 with 25K miles that has to go through a yearly inspection. The vehicle's in good shape, plus I take it the mazda dealer for maintenance. I took it to the the inspection center ...
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1 vote
2 answers
69 views

Fuel Filter Bypass Valve Opening Pressure Differences

What is the consequence of using a fuel filter with a higher-spec'd bypass valve opening pressure ? Currently have a UFI ‎31.833.00 / 6Q0201051C on my 2008 City Golf - rated at 4.0 bar. Considering a ...
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0 answers
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Opel Corsa 1.7dti utility 2005 Fuel Delivery Problem

I have an opel corsa 1.7dti utility 2005 model. I serviced my car recently and after I serviced the car it wouldn't start. It turned over but it wouldn't start. I primed the diesel filter by pouring ...
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0 votes
2 answers
169 views

Does 2002 Ford Escape have a fuel pressure sensor?

I've watched some videos and on their engines the fuel pressure sensor is at the end of the fuel rail close to the coolant reservoir and AC ports. My engine looks identical but I have no sensor there. ...
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0 votes
1 answer
64 views

Bajaj pulsar RS200 shuts off while trying to slow down or stop the vehicle

I have been a owner of pulsar RS200; ODO- 24,650, idling RPM-1.5, never touched FI system for servicing, just gone a round trip of about 400kms, by start of the ride filled tank, while returning while ...
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0 votes
1 answer
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Why does my mechanic suggest me to press the clutch when spark plugs tend to flood?

I'm quite a novice when it comes to mechanics of a car. I had a problem recently in my car where it wouldn't start. The mechanic explained that the plugs are flooding and maintenance is needed (a ...
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0 votes
0 answers
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JD 6415 diesel engine not starting after fuel injector replacement

This tractor has an inline 4 cylinder fuel injected turbocharged diesel engine. The injectors are pencil-stick style. The original reason why the fuel injectors were replaced is due to excessive fuel ...
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1 vote
2 answers
40 views

How to decide which check engine reading is faulty?

03 Honda CR-V. Check engine light just came on. O’reilys scanner gave a long list of readings... wondering if I should try bring it in or figure out a way to narrow it down beforehand.
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1 vote
1 answer
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Diesel engine fuel return pressure -- how high above the engine can the fuel tank be

This is specifically regarding an inline six cylinder direct injection, external injectors, and injection pump. Circa 1998. Just a stock standard Diesel motor.... But in general also. The bush camp ...
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1 vote
2 answers
107 views

What kind of rubber hose to use with fuel vapor line?

I need to replace a fuel evaporation rubber hose and the OEM hose is no longer made. I was looking through McMaster Carr and saw that there were hoses specifically for fuel and specifically for air. ...
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1 vote
2 answers
119 views

What are these parts? Underside of Mercedes Sprinter close to fuel tank

These are from underside of Mercedes Sprinter close to fuel tank. One goes to the engine, the other to a diesel heater. I think they're too small to the fuel filters or pumps. What are they?
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1 vote
1 answer
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Fuel Resistant Plastics

The environment inside the fuel tank sounds pretty bad when considering saturated petrol vapour. In tank electric pumps are common these days. What sort of plastic should the wire be made from? What ...
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0 votes
0 answers
27 views

Mitsubishi Outlander extended crank

Why would I have an extended crank after replacing all of my injectors and also have rich bank 1&2 codes? Have double checked timing and vacuum,all seems ok. If I shut it off and start it right ...
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2 votes
0 answers
43 views

Hard warm start + low long-term fuel trim (mixture too rich) DTC. How to diagnose?

Just wondering what my next steps are here. Vehicle is '05 Volvo V50 2.4i. Initially had two misfiring cylinders, which was tentatively diagnosed as a blown head gasket by the shop. I changed it ...
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4 votes
1 answer
2k views

Fuel rail pressure - how long should it hold?

My factory service manual states fuel pressure should be 50 psi with the engine running at idle. This is a six cylinder 2008 Subaru 3.0R engine with a return-less fuel line to the injectors. ...
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2 votes
1 answer
112 views

Mazda 6 V6 auto rough misfiring – fuel flow problem?

2007 Mazda 6 3.0L V6 automatic with ~80k miles: Runs "rough," especially while stopped in drive – feels like what I imagine an occasional cylinder misfire would feel like, producing a sort ...
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0 votes
0 answers
26 views

Hyundai Sonata not filling up with gas all the way after fuel pump replacement

So about two months ago I replaced the fuel pump in my 2012 Hyundai Sonata gls. When I picked it up and went to get gas it filled up to one bar below full and wouldn’t take anymore gas. For the last ...
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2 votes
0 answers
89 views

2013 Jeep Grand Cherokee fuel door won't close

The latch on my fuel door housing is stuck inside the housing and the fuel door has nothing to latch onto when I push the fuel door and try to close it. I've attached a picture of my existing fuel ...
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1 vote
1 answer
46 views

Should I worry about fuel pump noises after a filter and injector change?

I recently fixed a starting problem with my 2007 VW Rabbit. I ended up replacing both the fuel filter and fuel injectors. After I was done, per the manuals directions, I flushed as much air as I could ...
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1 vote
0 answers
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I have a 2000 ford contour 2.0 runs fine but will not get any faster then 40 mph no matter how much throttle I give,

Motor runs fine transmission shits fine has full rpm range all gears but at 40 it will not run any faster no matter how much throttle you give
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05 VW Passat Turns over, won’t start

this car has been a problem from the beginning... engine light on, codes say misfire. Started overheating so I replaced thermostat. Still had hardly any power or acceleration, engine light flashes a ...
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0 votes
3 answers
49 views

2000 Ram van 3.9l overheated and now runs very rough

First, the belt came off and damaged a vacuum valve inline on the heater core hose. Valve broke and was replaced with straight half-inch pipe temp. But I still don't have heat. Then the upper radiator ...
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0 votes
1 answer
43 views

Does the fuel pressure regulator ever go out of calibration?

On GM 3800 SFI engine, does the fuel pressure regulator ever go out of calibration? My FPR does not leak, can I assume it is good? The fuel pressure rises with RPM and goes lower at idle. Is that all ...
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2 votes
1 answer
72 views

Is it possible to actually run on fumes

Regarding the phrase "running on fumes", if a tank is empty, will the engine get any power at all from fumes left from petrol (I don't mean drive it any distance), or is it just an ...
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1 vote
1 answer
75 views

I have a 1999 yamaha r1 and it bogs out really bad

So I've cleaned the carbs twice on this bike and its like it's not getting enough fuel because it will only run on starting fluid and I've cleaned the tank and got new hoses and still the same problem ...
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0 votes
1 answer
95 views

What do you think of these spark plugs?

Still trying to diagnose an erratic positive fuel trims. Next step will be making sure that the lean condition i have is caused by less fuel delivered or weak spark not a vacuum leak. I pulled spark ...
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1 vote
1 answer
32 views

Fuel System Diagnostics

If I have a fuel system problem, I'm wondering what I'd need to do to be able to fix the issue. I don't want to be replacing parts just to see if it would now work. I'd rather take diagnostic steps to ...
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0 votes
1 answer
77 views

Lowest Fuel trims achieved only in the 1200-1500 RPM range?

This car still driving me crazy. I wrote here before about getting the code P0171 and some suggested a vacuum or exhaust leak. I sprayed some flammable connector cleaner around the intake manifold, ...
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2 votes
2 answers
2k views

How many miles could you drive a diesel car with petrol before noticing?

I recently refuelled my brand new diesel engine car when it was basically empty (25 miles left) and then drove away. I drove the car for about 100 miles before noticing the standard juddering that you ...
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0 votes
0 answers
40 views

Can you tell from sound if it’s a fuel starvation problem?

Car was cutting out and mechanic told me ‘it sounds like a fuel starvation issue’. In other words he was able to get a lead from sound. Does this work and how would I be able to based on sound ...
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