Question about 2005 Ford F-150

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2005 ford f150 5.4 stalled and wont start easily.

I have a 2005 ford f150 5.4 liter and it gave me trouble starting the other day, didnt really think anything of it... it was cold so i figured it was just a hard start, then later that day it stalled when i was going like 45 mph with no warning, now it wont start easily and when it does it seems to run fine, checked voltage it was fine seems to crank fine just wont fire easily sometimes not at all, thought maybe it was water in the fuel so i pulled it in the heated garage and it started right up after warming up for a while but i think it was just a coincidence because i ran almost all of the fuel out of the truck then put dry gas in and refueled and it still doesnt want to start. does anyone have any idea what is wrong? please help!!!

Posted by fiveokid on

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Bogdan Odwazny

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  • Ford Master
  • 6,158 Answers

Check crank shaft sensor and cam sensor.

Posted on Mar 24, 2017

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5 Related Answers

Anonymous

  • 1 Answer

SOURCE: 2004 Dodge Ram 5.7 liter Hemi

More than likely problem is with rear speed sensor. It is located on top of rear differential. New from dealer is about $35.00. A lot of the time you can remove the old one and give it a good cleaning. Easy to repair but just be careful that you dont break it off.

Posted on Dec 10, 2008

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Anonymous

  • 202 Answers

SOURCE: Voltage drop

The voltage regulator is having a problem. It is built into the alternator. You should take it to a local parts store that does free testing, and have it tested out.

Posted on Mar 26, 2009

Anonymous

  • 202 Answers

SOURCE: 1990 f150 transmission up shift to early

Sounds like the passing gear cable is out of adjustment. Get a shop manual and see what the specs are on how to adjust it properly. It is a pretty simple fix.

Posted on May 27, 2009

Anonymous

  • 7 Answers

SOURCE: 2005 Ford E350 Cargo Van Diesel starting problems

These International engines can be difficult to diagnose without the proper tools; namely Ford's I.D.S., or Navistar's DLC.

As for the o-ring the dealer was hinting at, they may have meant the o-ring on the fuel injection pressure regulator. I have witnessed these leak and cause difficult or no starting. This component is located at the rear of the engine below the turbo exhaust supply tubes. A specialty socket is needed to replace it (35mm 12 point socket which resembles an O2 sensor socket), although replacement is most likely unnecessary considering that your vehicle does eventually start. If this were indeed the culprit, your engine would not start. There is a test port next to this regulator to test oil pressure (bolt with allen head relief). A high pressure gauge which reads greater than 5,000 psi is necessary to test at this port. When your engine doesn't start, try checking what the oil pressure is at this port. A minimum of 3,000 psi is needed for the engine to start and 5,000 psi is prefered

Other sources of this problem could be the intake air temperature sensor, oil temperature sensor, or wiring compromises. It's a shame the dealer didn't want to spend the time necessary to pinpoint your problem. So glad I'm out of that crooked industry.


Posted on Dec 01, 2009

Anonymous

  • 1 Answer

SOURCE: 2000 Crown Vic cranks but won't start.

Check the fuel pump reset switch again, if it is popped back out then replace that little switch in the trunk, any ford one will do. it works off a magnet and a bearing to close the circuit for the fuel pump. easy fix.

Posted on Dec 20, 2009

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As a first course of action, I strongly suggest that you replace the ignition coil. If the ignition coil gets hot the car may stall or may not start right away till it cools down. The ignition coil is surely faulty and replacement is surely necessary.

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