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Questions tagged [fuel-pump]

The pump or pumps in a vehicle fuel system that move fuel from the tank to the engine and that may also provide fuel pressure in gasoline engines. This pump may also be called the lift pump to distinguish it from the injection pump of a diesel engine.

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Fuel tank pressure - leaking gases and gasoline

Hi! A pleasure coming to this site, hope I knew about it before! I own a VW Golf 4 R32 (euro), which from time to time, starts leaking gases and fuel from the fuel tank's cap. The amount of fuel ...
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2009 Mini JCW low oil does this cause carbon build up?

End of Nov 2018 I took the Mini for tire rotation and told the garage I was taking a road trip and to check all fluid levels including the oil. When I picked it up they confirmed this was done. The ...
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VW Golf 4 V6 loses all power on strong acceleration or uphill, only on half tank

I have a weird problem with my Golf 4 V6 2.8L 4motion, 1999. On exactly half tank (correct by gauge, distance and volume refilled), the car brutally loses all power if going uphill or accelerating ...
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2010 Ford Focus - engine stalls with AC on

Year: 2010 Make: Ford Model: Focus SES Transmission: 5 Speed Manual Engine: 2.0L I-4 Mileage: 79K Last summer my Focus stalled while climbing a hill with the AC on. It was a hot day and I had ...
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1answer
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Engine lean issues

Vehicle is a 2006 Ford Courier, started having hesitation/loss of power after fill up at a gas station that I'd never been to before. I depend on it for transport so I'm forced to still drive it, ...
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155 views

Can't remove fuel line connector from fuel pump

I am trying to replace the fuel pump of my Volvo V70 I 2.4 (106kW, 1998, manual), but can't remove the fuel line connector from the pump assembly. The return line seperated easily, but the other one ...
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1answer
55 views

Fuel pump can't pump after few days stopped

I have a 1995 Nissan Sentra with a carburetor and a mechanical fuel pump. After being parked for a couple of days, the car doesn't start because no fuel reaches the carburetor. At most it, will start ...
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Priming fuel system from fuel tank?

Mechanic changed my Focus 2014`s diesel fuel filter, then because he didn't know the correct method to bleed the system, instead he pressurized the fuel tank with compressor. Car ran fine. But the ...
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How can I start my lpg toyota Yaris with a broken gasoline fuel pump so I can bring it to the specific repair shop? [closed]

My gasoline fuel pump no longer works so the gasoline no longer arrive at the engine. I’m only 2Km away from the repair shop which broke my pump, so I’m unwilling to spend more than 100€ in towing ...
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118 views

No power to the fuel pump

I have a 2006 Toyota Isis and it had a problem where it idled well, but when you press gas the engine started to stall and when you lift your feet then it idled well again. I took it to have it ...
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Dodge Ramvan B250 starts after 10-15 seconds crank - where is the fuel?

I have a 1989 Dodge Ram Van B250 TBI 5.2L 318ci engine. It takes about 10-15 seconds of cranking to start the engine. After it gets hot sometimes it never starts. I'm getting afraid of taking it ...
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1answer
59 views

Fuel Pump Failures

I have a 2015 Hyundai Accent with 45,000kms. The tank fuel pump has failed twice and the high pressure fuel pump once. Anyone know what would cause such failures?
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Car shakes upon startup, dies. Other times gas pedal does not respond

I'm pretty uneducated when it comes cars but im hoping you guys can help me. I have a 99 Ford Ranger that upon startup (not every time) shakes extremely hard and then dies. Other times when driving I ...
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1answer
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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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Is common-rail unreliable by nature?

After having a common-rail diesel car with low mileage who broke 4th injector, and one year after the 1st injector, I tend to be suspicious about the system. It features a deposit where fuel is at ...
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Mercedes ML320 fuel pump stops after 3-4 seconds

The fuel pump in my 98 Mercedes ML 320 died last summer. I replaced it then, but now it's having issues. When I turn the key slowly, I can hear the pump kick in, but when the starter kicks in it ...
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1answer
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Kia Spectra fuel pump won't turn on

Car drove fine the previous day. Today it would crank but not start. First thought was that the fuel pump gave out, as everything else seemed fine, and I did not hear the fuel pump priming when the ...
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1answer
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Dirty tank or bad fuel pump

I have 2000 c240. I've been struggling with starting problem for the last 5 days. The story began when I couldn't start the car after driving for 5 minutes. I turned on and off 4-5 times after which ...
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Any stable alternatives for Z22YH (GM Ecotec GDI engine) high pressure fuel pump?

the main problem with these pumps (part number 815049) are: 1. Expensive: about 400€ for a new one, very hard to find a working old one. 2. Membranes: the membranes used in these pumps get broken ...
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2answers
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Ecu problem on my 1997 toyota corolla

I have now traced the wire that renders my fuel pump powerless. The wire runs from the ECU to the fuel pump relay. It must carry a - charge in order to work the pump. But unfortunately, it is not ...
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1answer
351 views

How to disassemble Pierburg electric fuel pump

I've recently replaced my fuel pump on my W202. The one I replaced seems to be the one that was installed in the factory as it has the MB logo and is made by Pierburg. The new one is from Bosch. In ...
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How Carburetor/FI will handle fuel supply in high inclination angle

Lets consider, we are going in inclination. (ex:some where > x Degrees). At this time, how carburetor will pump the fuel into the cylinder. Since of high inclination, it is very difficult for the ...
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Do I have a fuel pressure or injector problem Part 2

This is a continuation of my previous fuel pressure / injector question. So the missing part for my fuel pressure gauge came in and I was able to do a few more tests. The first thing I think is that ...
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Why are there separate Fuel Pressure Regulator and Maximum Fuel Pressure Tests?

There are a few different active fuel pressure tests listed in the 97 Mazda 626 GF Work Shop Manual ( European ). The first two are an idle pressure test ( 30 - 36 psi ) and a fuel pressure regulator ...
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1answer
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In Tank Fuel Pumps Pros and Cons [closed]

In-tank fuel pumps are common in cars these days. I was first aware of this in 1985 on a Ford Telstar when it was relatively exotic. I have been told that it keeps the electric pump cool and quiet and ...
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Loss of current to fuel pump

There is no current coming to the fuel pump in my 1997 toyota corolla. Only the ground wire has current. The other wire does not have current so what is the cause of this lost of current and how can I ...
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1answer
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Do I have a fuel pressure or injector problem, or am I just chasing ghosts?

I just did a fuel volume test on my 98 Mazda 626 2L GF. According Tim Giles book Automotive Service: Each injector is energized for 15 seconds... Variations of more than 5 ml calls for replacement ...
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Should I be getting fuel in my fuel filter even when the ignition is off in my 91 Firebird V8?

I have a 91 Pontiac Firebird Formula V8. Recently I changed the fuel pump, stocking, and throttle body. Yesterday, she ran like a dream. Today - nope. I notice I'm getting fuel in my fuel filter ...
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3answers
3k views

2011 Ford Mondeo 2.3L - petrol fuel pump keeps failing

I've had a 2011 Ford Mondeo 2.3L for about 18 months, and the fuel pump has failed for the third time. Each time the same story - the car drives fine, turn off the engine, leave the car, get back in ...
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1answer
520 views

Car not starting after few kilometers of driving (Chevy Cruze 1.8L 2011)

I have a 2011 Chevy Cruze 1.8L It starts fine when the engine is cold, however, after driving for a while then stopping it, it won't start. One day I drove it 25 km, stopped it, then tried to start ...
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1answer
2k views

Diagnosing fuel pump relay on 2004 Acura TSX

My wife's '04 Acura TSX began having issues starting towards the end of last summer. It would turn over just fine, but took 5-10 seconds to actually start running. The problem was intermittent - some ...
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2k views

Can't find out a correct fuel pump for my vehicle

I have a 2008 Dodge Charger SRT8 6.1l. The trick is, that I need a fuel pump replacement for that vehicle and I can't find the appropriate part. Fuel tank capacity is 72 liters (22 gallons)... On the ...
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Two Fuel Pumps died

Already having replaced 2 fuel pumps, both died. Seems to have a problem in somewhere (alternator, battery, electricity) or I have no luck for fuel pumps. The last one, last 6 months, before died ...
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2answers
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Is it bad on your fuel pump to have your tank run low? [duplicate]

Ive always been taught it was bad on your fuel pump to run your vehicle tank close to dry as it would damage the fuel pump but Ive never seen any validation to support this statement. So will running ...
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3answers
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2009 BMW 328i Crank but Won't Start

2009 BMW 328i (N91 Fuel pump) cranks but wont start, what I have checked thus far: Sprayed starter fuel inside the throttle body and it starts up. Verified proper voltage is being sent to the pump ...
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3answers
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Any huge difference between high performance and stock fuel pump?

Having Dodge Charger 2009 - I had the issues lately with a stock fuel pump which stopped working. I've bought a new one, after 5 months, fuel pump start cranking with a strange noise, and sometimes my ...
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1answer
476 views

Do worn brushes in an electric fuel pump increase fuel flow rate?

Electric fuel pump manufacturers can provide pump curves like this one below by Pierburg: I wanted to confirm my understanding of the curves when simulating the effect of worn brushes in the electric ...
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2answers
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Why is the effect of a bad fuel pump more noticable at higher speeds?

I get that the main effect of a bad fuel pump is that the engine will cut out at higher speeds, and that this is often not easily noticeable until that happens because there are little or no prior ...
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BMW E60 (525d M Sport 2005 UK). Cranking but not starting. Fuel Pump/Relay issue?

Background: Long term bad earth problem has been causing iDrive to crash and reboot for years. Bad earth seems to drain the life of the battery over a period of a few years. On my 3rd battery now. ...
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1answer
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Failure to start in frigid temperatures

RE 2001 Ford Explorer It has a new battery, coil, and wires in place. The truck will not start below -7 F despite strong cranking; in these temperatures, sound of fuel pump priming is muted or absent....
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3answers
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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 ...
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1answer
251 views

2006 Honda Civic, Automatic, Weak Start-up

My car is a 2006 Honda Civic, about 90k miles, Automatic, new battery about 6 months ago. No issues before now. Over the last week, it has been starting weakly. By that I mean when I turn the key, ...
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3k views

Should fuel pump noise be changing according to electrical load and RPM?

One thing that bugs me about my car is that the fuel pump noise is fairly inconsistent. Turning on the lights, aircon, defroster, etc. lowers the fuel pump speed and gives a lower pitched noise. It ...
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1k views

Can there be 2 fuel pumps in a petrol car?

My car is a Nissan Primera P12 (2500 cc) and recently I heard from my mechanic that there are 2 fuel pumps in the car. One closer to fuel tank, and another closer to the engine. Is this a normal ...
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Can a Crank sensor cause fuel pump failure?

I have a Nissan Primera P12 2001 (2500cc) which was working without any issues. Yesterday when I try to start, it wouldn't. Talking to the repair guy said it was the fuel pump. But later he said it ...
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Does the amount of fuel in the tank matter?

As long as there is some fuel in the tank, does the fuel level matter? In other words, is it advisable to make sure the tank is mostly full most of the time, or is this just silly? In other words, are ...