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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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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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1 answer
181 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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‘09 Honda Accord Not Starting after going into limp mode

Good afternoon! I have a 2009 Honda Accord EXL 3.5L V6. Earlier today while driving it down the highway, it sputtered and went into limp mode so I pulled over and turned it off. It threw no engine ...
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1 answer
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Replacing metal fuel line with braided hose - Need 1/2 and 7/16 fittings for pump and carb

I changed a fuel pump (mechanical mounted below the alternator) on an IH V-345 motor with a 2bbl carb. The carb has a 7/16 inlet and the fuel pump has a 1/2 inlet, both are female. EDIT: Here is the ...
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1 answer
71 views

Issue with fuel injection pump?

I had been driving a TATA Indica Vista quadrajet 1.3L turbocharged (diesel) yesterday over a total distance of around 250kms. We had like a few stops in between at 5 or 6 places. After stopping it ...
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I changed the fuel pump on my F350 Ford. Now it won't start and receiving code 1DTC

I replaced fuel pump on my 2005 Ford F350 gas engine. Now it won't start and receiving code 1DTC.
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1 answer
112 views

2 fuel pumps dying due to electrical issues?

I bought a 95 240sx se as a project car with a blacktop sr swapped in it. I bought it knowing it didn't run. It cranks but no fuel pump prime. So I replaced the fuel pump and it started up. After ...
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1 answer
156 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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1 answer
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Fuel pump on a Subaru Outback

Hello can anyone tell me where the fuel pump is located in a Subaru Outback 2003 model? Thank you in advance
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1 answer
844 views

My 1.4 corsa looses power and judders

I have a 2018 corsa with 89000 on it is just looses power when am driving like it’s going into limp mode but doesn’t. And when I’m at a stop it judders and cuts out but starts straight back up no ...
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1 answer
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2006 kia Sedona van was driving home and it cut off and had to get it towed home will crank over but wanted start

After getting home I checked the spark and got good spark but was getting no fuel so we pulled the plug wires off the fuel pump and not getting any power what do I need to do
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Fuel pump on the car not working as the fuel cuts off

I have a Tata Indica 1.4 the car has a new fuel pump inside. When I drive the car cuts electrical power to the pump; then there is 0 volts. After about 20min, the car starts and runs again for about ...
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2 answers
186 views

Fuel Pump efficiency and life span

Does the weight of petrol in your tank help Pump to work better by pushing against/through pump so the Pump not having to pump so hard the Petrol?
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Four fuel pumps in one month?

Since December 25 of 2023 to date I have replaced four fuel filters in my Dodge 1500 hemi. I don’t understand why they keep failing. The last one literally lasted a week, no sorry wasn’t even a week ...
6 votes
1 answer
636 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 ...
2 votes
1 answer
290 views

Can revving the engine cause damage to the fuel pump?

I have a 2009 Dodge Ram 1500 and someone was revving my engine while they had the vehicle in park. The vehicle broke down on them losing all power to the engine not too long after. I’ve had some ...
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1 answer
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New fuel pump, but car didn't start until tank was about half full

Replaced the fuel pump on Dodge Intrepid 2001, 2.7L engine. Before dropping the fuel tank, drove it until about 1/8 full, so that it would be lighter. Installed the new fuel pump, strapped the tank ...
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2 answers
88 views

Fuel pump burned out

Can me taking my truck (2003 Chevy avalanche) mudding burn out my fuel pump? If not what are things that can burn it out?
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1 answer
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Lincoln Continental 2000 fuel pump connector loses 12v when connect fuel pump

I have a Lincoln Continental 2000 and had changed the fuel pump one time and it worked for about a month and after a month the fuel pump failed again and confirmed it failed by applying 12v and ground ...
4 votes
1 answer
996 views

Why does the fuel pump buzzing sound go away after a couple of seconds?

In every fuel injected car that i drove that had electric fuel pump, i always hear the fuel pump buzzing sound after turning the ignition on however after a couple of seconds the buzzing sound goes ...
1 vote
2 answers
770 views

Switching fuel pump from "in tank" to "in engine bay"

Here are some mildly related questions about the pros and cons of moving a fuel pump from being in the tank to in the engine bay: In Tank Fuel Pumps Pros and Cons Is an "engine bay" fuel ...
89 votes
13 answers
102k views

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 ...
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Is an "engine bay" fuel pump substantially louder than an "in tank" one?

In the mechanics book I was reading, it says that one of the main reasons that fuel pumps were moved from being in the engine bay to in the tank was because the sound was much more muffled when ...
2 votes
1 answer
135 views

Fuel injected car behaved as if gas-flooded on startup, just once

2013 Toyota Corolla wouldn't start, just one time, then returned to normal. Battery was fine, starter turned over but no ignition. After about 10 or 20 seconds of intermittently trying the starter, ...
5 votes
2 answers
1k views

Does electric fuel pumps run at constant or variable speed?

In websites I have seen that fuel pumps have a pressure range of say 30-95 psi. Why do they give a range of pressure? I had read that these pressure values refer to the unobstructed flow pressure ...
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1 answer
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Replace Old fuel filter or Fuel Pump | Dilemma

The mechanic today diagnosed my car rail pressure with roughly around 15 psi (1.5 bars) and it should be around 30-40 psi (2.5-3 bars). He told me that it could be fuel regulator, fuel pump or fuel ...
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107 views

Inline fuel pump loses prime only when engine is running

I'm working on a boat (malibu responise LX) with a small block chevy engine, EFI, and an inline fuel pump. After much diagnosis, I replaced the (inline) fuel pump on the premise that a seal had failed ...
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Royobi BP42 took off carb cleaned and new fuel lines now starts idols then shuts off but restarts again ould it be gasket where vacuum hole is

Removed carb cleaned reassembled with new fuel lines starts runs for awhile and dies but restarts gasket vacuum hole may be leaking
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3 answers
5k 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 ...
2 votes
1 answer
488 views

Ford TDCi sluggish until turbo kicks in

I have a 2010 Ford S-max 1.8 TDCi with 70K miles. The engine starts most of the time, sometimes I have to try 2-3 times. If it happens to not start, the engine barely runs, maybe for a second if at ...
2 votes
2 answers
2k 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 ...
3 votes
1 answer
631 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 ...
1 vote
1 answer
76 views

Cant find the exact fuel pump i need for my 04 mercury mountaineer please help

04 mercury mountaineer needs fuel pump and im having trouble finding the one with my exact connector. I keep getting one with 3 holes in the connector and I need 4 holes
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2 answers
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Is there a temporary fix for Jeep Grand Cherokee Dodge Durango power pump relay recall v62?

FCA in November 2019 issued a second recall for 2011-2014 vehicles, but has still not devised a fix and all dealers will turn away customers seeking a fix because there is no direction from FCA and no ...
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2002 Ford Escape sputters at and accelerates slowly from stops

I ran two cans of sea foam through it. I replaced the fuel filter, I cleaned the MAF and idle air control, and I put a new air filter in it. All that made it a little better but the problem is still ...
0 votes
1 answer
394 views

Can inline plunger mechanical injection pumps pull through the fuel?

I know that they have lift pumps that bring the fuel towards the plungers so that the plungers can push and pressurize the fuel towards the injectors but i was wondering if lets say we removed the ...
1 vote
1 answer
546 views

Audi 3.0 TDI HPFP replacement - original vs aftermarket

I have an Audi A6 3.0TDI from 2010 with very low mileage (65000 miles, 105000km) and no apparent engine problems. I got a note from service about suspicious sound coming from the high-pressure fuel ...
1 vote
1 answer
492 views

Why did some old cars use both electrical and mechanical fuel pumps at the same time?

I was researching the Ferrari 250 GT Lusso and realized that it has an electrical pump at the fuel tank and it also has a mechanical fuel pump driven by the engine. The electrical pump feeds the ...
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959 views

Audi A4 Going Into Limp Mode

I have an Audi A4 B7 and as soon as I bought it off the lot, it started going into limp mode around 3k RPM. it doesn't go any higher than that even when I rev it. I have replaced the cam follower I ...
1 vote
2 answers
2k views

Just what is vapor lock, does it have anything to do with the fuel pump?

Just what is vapor lock and how do I fix it? I have a 2005 Nissan Altima SL 2.5l and after replacing a leaking radiator, hoses, clamps and thermostat it's still running hot! Someone said it was vapor ...
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1 answer
161 views

Are Lift Pumps used in Bosch Kugelfischer mechanical plunger pump injection system?

I know that Diesel Mechanical Inline Plunger injection pumps have a lift pump that supplies the main injection pump. Is it also the same case on Bosch Kugelfischer mechanical plunger injection pumps ...
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3 answers
158 views

Fuel pump problem

My daughter's car, a Honda Jazz, have not been used for more than 3 weeks. We replaced a new battery as the engine failed to start. Even with new battery, the engine still failed to crank. We took it ...
1 vote
4 answers
17k views

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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47 views

Does the electric fuel pump get damaged?

The lorry was working just fine, and suddenly it stopped on its own. We did the checks including wiring, and finally, we discovered that it was a blown fuse which was no longer supplying power to the ...
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Why does my 1980 Fiat Spyder keep cutting out?

I have a 1980 Fiat Spyder. It starts fine, but occasionally it cuts out - just dies. I can re-start it again OK. We had a new relay installed, but even the mechanic is out of ideas.
3 votes
1 answer
363 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 ...
1 vote
1 answer
438 views

Why is there no power going to my fuel pump?

2003 Kia Spectra, here's the backstory : I recently changed the spark plugs and soon after doing so I tried to turn the car on and it only cranked. The owner before me probably try to work on the ...
3 votes
2 answers
378 views

1996 Nissan Sentra won’t start after refueling

I’ve had this car for about a month, and never had a single problem starting up. This morning, after filling the gas tank, I turn the key and absolutely nothing. No electronics or anything. I tried to ...
1 vote
0 answers
222 views

High frequency noise from fuel pump persists after replacement, what could it be?

So recently I've been noticing a high frequency noise coming from the rear right side of my Volvo where the fuel pump is located. I took it to a mechanic where they agreed that the noise was indeed ...
2 votes
1 answer
4k views

Can I mix RON 97 fuel with RON 95 fuel in my car? [duplicate]

sorry for asking a noob question. My car uses unleaded petrol car. I have been using RON 95 fuel in my car. It is half tank full. Now I got £2.80 discount on Shell V-Power. Can I pump RON 97 fuel (...