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What is the fuel pump pressure for 05 Linc. Aviator? 4.6

Fuel pressure?

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Any where between 50 & 60 PSI

Posted on Nov 16, 2014


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Posted on Jan 02, 2017

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SOURCE: My 05 impala has a miss testing fuel system wont

Try taking the vacuum hose off the regulator and see if its leaking there. If not, the only way to isolate it woud be to block or pinch closed the fuel line.

Posted on Oct 28, 2009

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SOURCE: 05 Impala missfire code 301 have changed

check intake for vaccum leaks,the gasket also and egr valve, thats alot of parts to have replaced without diagnosing first, if there are no fuel leaks and you said all injectors were replaced then you have a defective fuel pump, also these engines had misfire problem because of dirty injector but you replaced them so count that out. good luck.

Posted on Nov 02, 2009

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I have 2005 lincoln aviator I st asserted to smell gas only after I drive it then noticed gas leaking from atop of the tank down the side it's a very small amount where would it be coming from?

You will need to remove the gas tank and locate the leak. I leave you with a link to youtube and a video of the gas tank removable on a 05 explorer (same vehicle as the Aviator) to access the fuel pump. While you have it out you should replace the fuel pump if the vehicle has more than 75,000 miles on it..

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2004 Lincoln aviator looses fuel pressure after it has been parked for 4-6 hrs. have to turn the ignition on (not Start ) 7-10 times then the vehicle will. start. replaced the intank fuel pump.fuel filter...

i would check the fuel pressure. see how fast the pressure goes down. most cars i have worked on it dosnt take that many key-ons to get fuel. a fuel pressure regulator could be leaking. there is a check ball in the pump to keep the fuel from draining back. since the pump is new, i would check the regulator and poss. the injectors. its poss. for an injector to leak or stick open

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Hello, i have fitted an 05 2.2 x trail with an 06 fuel pump and 05 injectors, 05 are 4 pin, 06 are 2 pin, we have 500 bar of pressure at common rail (with suction valve disconnected)but no power, the

Sorry i assume this is a diesel but its all electronic now and way above my head ,now in the good old days of a bosch or lucas injector inline fuel pump i could do anything from re-setting the injectors with a big bowl with a pump to re-calibrating the injector pump on the engine with it running but this is beyond me ,but on reading the question again then thinking ,yes i know iam old and it hurts to think but the wires to the injectors is the clue i think ,4 wires which could be running a feed information back to the computer which its not recieving ,the newer vehicle having a different software programme so you may need to change the computer for the later model then look at the pin layout of the later computer and work out what you need to leave disconnected other than this use all the original parts for this year and build vehicle .

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Changed fuel pump and still run and idlies rough then dies after about twenty mins on a late 05 Chevy gasoline 3/4 ton 4+4

did you change fuel filters ? (im just asking )look at your fuel pressure regulater and vacuum that operates it you'll find it at the end of fuel rail.

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Code p1237 on a 2004 lincoln aviator

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3 Answers

What is the correct fuel pressure at the rail for a 2004 Lincoln Aviator?

Disconnect the electrical connection to relieve the system's pressure. Start the Navigator and let the engine run until it stalls from lack of gasoline. Turn off the ignition, reconnect the pump's electrical connection and disconnect the negative battery cable.
  • Step 2 Detach the fuel pressure sensor vacuum hose. Check for fuel in the line. If there is fuel present in the line, the fuel delivery problem is likely caused by a faulty fuel pump pressure regulator. If there is no fuel in the line, reattach the vacuum hose and continue with the fuel delivery diagnostic.
  • Step 3 Twist off the fuel pressure test port cap and secure a pressure gauge to the fuel pressure valve. Reconnect the negative battery cable and start the engine. The pressure gauge needs to read 45 psi when at wide open throttle. High pressure readings indicate a malfunctioning pressure regulator. Low pressure readings indicate a clogged fuel filtermag-glass_10x10.gif or a broken fuel pump.
  • Step 4 Cut the engine. Relieve system pressure and remove the negative battery cable again so you can safely remove the fuel filter to check for clogs.
  • Step 5 Loosen the filter fittings and unhook the fuel lines from the filter. Undo and remove the bracket on the fuel filter.
  • Step 6 Inspect the filter for clogs and replace it with a new one if necessary. If there are no clogs, the fuel delivery problem is probably a faulty fuel pump.
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    1 Answer

    2005 lincoln aviator won't start it has good fuel pressure new sparkplugs sounds like it wants to start but doesnt

    Did you check the Fuel pump shutoff switch? If you hit something not too hard, or some hit you when you werent in the car, it would shut the fuel pump off.

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