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Could changing the fuel pump caused air in the fuel pipes? If so how would i get the air out? Thanks

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You must bleed the system after opening the fuel pipes.

Posted on Nov 24, 2014


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Hi all just changed the fuel filter in my 2008 lancer now wont start i suspect the fuel pump is this common cheers phil

is this a diesel? if so you have got air in the system there is a bleeding system you should follow after filter change which normally involves switching ignition on/off 6or 8 times with few secs in between with ign on to bleed air from system if it got a electric fuel delivery!. or if its mechanical a vacuum prime pump is needed which may be a dealer bit of kit which ever it is dont try and start until the air has been removed. you must not get air in to tha high pressur side. i suspect @2008 it will be common rail system and can cause major probs if you get air in the high pressure side not easy to advise you dont say what engine you have. if its petrol then changing the fuel filter should not cause a prob if fitted correctly,if its common rail diesel and you have got air in the high pressure side you have to slacken the high pressure pipes and keep cranking the engine to exclude the air after 1st bleeding the low pressue side of the system then retighten the pipes. but any high pressure pipes loosened should be renewed they are normally one use only and could leak if not good luck

Dec 17, 2016 | Cars & Trucks

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Well not start without easy start if turned off for more than 10 mins

If it the pre 651 engine then this will apply you will have a high pressure fuel pump mounted on the front of the cylinder head, The plastic fuel pipes that feed this pump have " o" rings that deteriorate and let in air causing poor start, The answer is new plastic fuel pipes between the fuel filter and high pressure pump.

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1 Answer

2003 s-19 4.3l engine slow to fill fuel tank

By pass pipe crimped or blocked, most tanks have a pipe from the top of the tank to the neck of the filler to allow air to escape from the tank as the fuel is put in. If the pipe gets blocked, air has to come back up the filler pipe and it bubbles the fuel and backs it up to the filler causing the pump to knock off. Hope that helps.

Dec 27, 2013 | Cars & Trucks

1 Answer

Hi I have a 2002 Toyota Corrolla D4D and it has lost approx. 70% of its power. I have change the filters, replaced the oil, EGR valve, drained and cleaned the diesel tank and replaced with fresh diesel but...

If u disconnect pipe at engine end do u get a good flow of fuel from pipe if just dribbling u may have a blocked pipe u need to blow through with air line make sure u take of fuel cap or u will blow out ur tank, if that's ok check ur fuel pump if faulty replace pump

Oct 29, 2013 | 2002 Toyota Corolla

1 Answer

What causes a 2005 dodge neon to completely stop while driving?

there could be many issues why such as loss of fuel, air not getting into tank causing fuel starvation. ingition managment system may be defective, the air filter is blocked, or the exhaust pipe is blocked.
causing air starvation. for the engine to run it needs fuel, air and ignition.
if any one of these is missing the engine will stop.

to check fuel, open your filler cap, if you hear the air rushing in as you open it this could be the problem, with the cap removed try to start the engine. also check to see if fuel is being pumped into the engine, either the fuel managent system or the fuel pump needs to be looked at if this is not happening.

for the ignition, check you are getting a good spark, and that your plugs are clean. if they are wet or coated in white this may mean your fuel mix is not correct.

i hope this was useful.

Sep 02, 2012 | 2005 Dodge Neon

1 Answer

My 95 oldsmobile cutlass supreme keeps cuttin off and i changed spark plug, coil pak, wires, fuel pump, fuel filter and it still loses power when it wants to

Sounds like you will have to look into your O2 sensors which will be located on the exhaust pipe, as well as your MAF (Mass Airflow Sensor) This will be located on your intake pipe somewhere between your throttle body, and your air box. Those are the only two things I know that can cause intermittent shut down. I sometimes take a can of brake cleaner and spray the sensor on the INSIDE of the intake pipe and it will clean it. Let me know what you find.. Thanks.

Mar 20, 2011 | 1995 Oldsmobile 88

2 Answers

Obd code of p0411 on a 1999 ford mustang 3.8 v-6 what do I check to correct

That's s failure of the secondary air pump. It'll have to be changed. It's an emissions component meant to help with cold start emissions. It won't cause engine running trouble but at inspection time you'll fail for smog. Change it before then and you'll be fine.

May 16, 2010 | 1999 Ford Mustang Cobra

2 Answers

Car is choking out and dying. Reads P 0411 code. How do I know if its the motor or just the solenoid valve? How can I check to narrow down what actually is causing the problem? It's on a 2000 VW jetta VR6


if (window.showTocToggle) { var tocShowText = "show"; var tocHideText = "hide"; showTocToggle(); } 16795/P0411/001041 - Secondary Air Injection System: Incorrect Flow Detected Possible Symptoms
  • Malfunction Indicator Light (MIL) ON
Possible Causes
  • Fuel Pump Relay (J17) faulty
  • Hoses/Pipes to/between Components faulty/clogged
  • Secondary Air Injection Pump (V101) faulty
  • Secondary Air Injection Pump Relay (J299) faulty
  • Secondary Air Injection Solenoid Valve (N112) faulty
Possible Solutions
  • Check Fuel Pump Relay (J17)
  • Check Hoses/Pipes to/between Components
    • Check Secondary Air Injection Hoses/Pipes for Carbonization
  • Check Secondary Air Injection Pump (V101)
  • Check Secondary Air Injection Pump Relay (J299)
  • Check Secondary Air Injection Solenoid Valve (N112)

Apr 28, 2010 | 2000 Volkswagen Jetta TDI

1 Answer

R reg discovery taking a long time to start. i have changed the glow plugs , the battery is quite new .fuel filter is new. any ideas?

check the fuel lift pump does it pump fuel (remove outlet pipe and operate pump lever check to see if inlet pipe has not cracked and allowing air to enter the fuel system

Aug 02, 2009 | 1998 Land Rover Discovery

1 Answer

Black smoke

black smoke and lack of power guessing its a diesel can be a cause of some simple items such as dirty/blocked air filter, dirty fuel filter if you check the air filter for cleansliness then change youre fuel filter and you then have the same symptoms you need to investigate injector/injection pump problems
ps check the air pipes to and from the airbox make sure they havent collapsed

Feb 17, 2009 | 1994 Isuzu Trooper

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