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2008 Lincoln Navigator, 5.4L engine. Stalls while driving. No check engine codes or pending codes. Fuel pressure at 68psi but when issue starts to happen, pressure gauge goes crazy. Any ideas??

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  • Lincoln Master
  • 531 Answers

So you ruled out the fuel filter by changing it already?

http://www.ford-trucks.com/forums/866588-fuel-filter-change-how-and-where.html

Posted on Apr 18, 2015

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 496 Answers

SOURCE: engine stalls, check engine light, not fuel filter.

the white smoke as it stalls could be steam in the exhaust. This is caused by coolant leaking into cylinders from a leaking head gasket. You should check cylinder compression next with a compression tester.

Posted on Jan 11, 2009

  • 155 Answers

SOURCE: 2004 Lincoln navigator misfire on cylinder 8 error code p318

Replace the coil pack once more. I went through 2 new ones on my f150 on one cylinder. One worked, the other didn't (both new off the shelf). Condensation build up in the boot caused mine to misfire. Anytime you replace a coil pack, squirt a little silicone grease inside. This will prevent condensation from hitting your plug. Fords are notorius for this problem, especially if you live in a humid area. Also, make sure and clear the codes after you make the repair.

Posted on Jun 10, 2009

  • 1 Answer

SOURCE: 2003 Lincoln Navigator stumbles/bucking under mild acceleration

I have a 2003 Nav with the exact same problem. I've found it diminishes when taken out of overdrive. Also it's intermittent but more towards bucking. Sorry to post this under solutions.

Posted on Nov 06, 2009

herbalgarden
  • 344 Answers

SOURCE: 95 2.5 jeep wrangler stalls consistantly and will

I had the same issue with my 4.0, I went through all the same BS you did and in the end it was a faulty fuel pump. Pricy i know but im sure thats your problem

Posted on Nov 15, 2009

  • 1 Answer

SOURCE: po320 code and code po303 2004 lincoln navigator

Replaced a camshaft sensor still running rough & engine light still on, 2004 lincoln nav. 5.4 liter

Posted on Apr 28, 2010

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While I'm driving out of no where the truck starts shaking really loud i'll put the vehicle in park then give it some gas then it stops... Or if it's under half tank it shakes more often.


You are having issues directly correlating with CONTAMINATED FUEL. Have the fuel tank flushed if possible. Replace ALL FUEL in the vehicle, and replace the FUEL FILTER. Have the fuel system checked for proper pressure at the fuel rail, and replace the fuel pressure regulator, fuel intake strainer, and the fuel pump if necessary.
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It can be low fuel pressure issue or clogged fuel pump.Or its engine related issues,---------------
Check the help link mentioned below to troubleshoot the problem :------

Engine stalls when gas is given?

http://technoanswers.blogspot.in/2012/01/engine-stalls-when-gas-is-given.html

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Car stalls when MAF sensor is connected?

http://technoanswers.blogspot.in/2012/01/car-stalls-when-maf-sensor-is-connected.html

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Car Engine Stalls While Driving?

http://schematicsdiagram.blogspot.com/2011/12/car-engine-stalls-while-driving.html


--------------

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http://repairhelpcenter.blogspot.com/2012/01/car-stalls-and-throws-white-smoke-from.html

-------------

Stalls And Dies At Stop Sign?

http://www.howtobyme.blogspot.com/2012/07/stalls-and-dies-at-stop-sign.html

------------

GMC Sonoma Stalls and idles low

http://technoanswers.blogspot.com/2012/10/gmc-sonoma-stalls-and-idles-low.html


------------

Nissan Pathfinder stalls and bucks on Acceleration?

http://technoanswers.blogspot.in/2012/02/nissan-pathfinder-stalls-and-bucks-on.html

-----------------

1992 Chevrolet stalls and shutdown?

http://schematicsdiagram.blogspot.in/2012/04/1992-chevrolet-stalls-and-shutdown.html

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http://schematicsdiagram.blogspot.in/2012/03/stumbling-and-stalling-at-idle-after.html

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1990 mazda 323 stalls and quit running?

http://technoanswers.blogspot.in/2012/02/1990-mazda-323-stalls-and-quit-running.html

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2000 Toyota Camry: Idling and Stalling Problem?

http://whatisbyme.blogspot.in/2012/05/2000-toyota-camry-idling-and-stalling.html

---------

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http://whatisbyme.blogspot.in/2012/05/1995-toyota-corolla-stalls-sputters-and.html

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1999 Toyota Camry: Erratic stalling and high engine RPM at idle?


http://whatisbyme.blogspot.in/2012/05/1999-toyota-camry-erratic-stalling-and.html

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These details will help.
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Code p1237 on a 2004 lincoln aviator


The P1237 means Fuel Pump Secondary Circuit Malfunction.
_________
autel maxidas ds708

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Why would my 1998 Lincoln Navigator have a miss in it?


Are your sure this is an ignition related misfire, have you checked that the fuel injector is working in the suspect cylinder, does it have at least 95% cylinder pressure on a compression test compared to the highest reading cylinder? Do the testing. Also what are the fault code(s) you are showing on a scan.

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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

    98 lincoln navigator loud noise, shaking, high rpm at idle, drive


    I don't know how much oil you had to put in but it sounds like you have maybe more than opne issue and both sound major. One is engine reving and speed not picking up sounds like trans problem. Two the engine shaking and making noise and being run low on oil leans toward possible engine damage. If your mechanicly inclined check all fluids and when checking trans fluid smell it. If it smells burnt the trans has been damaged. Check oil pressure and make sure coolant is full.You may have to take it into the shop.

    Oct 06, 2009 | 2004 Lincoln Navigator

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