Question about 2003 Ford F250 Super Duty Crew Cab

1 Answer

2003 Ford F250 superduty diesel 7.0L ,no start in cold

Truck will only start in cold weather if it is plugged up...Hooked it up to computer at auto parts store...altenator..replaced , fired right up..drove a few miles turned it off..wouldn't crank. Had to get a jump off ...then barely made it into my driveway before lights dimed...dash lights gone, radio gone and ABS light flashing..coasted in. plugged ti back up..took the alternator off..returned to store...checked out fine....my original then checked out fine. Replaced both batteries... put alternator back on...replaced glow plug relay switch, because it wasn't staying on long enough..Now truck won't even crank! No lights still...What can I do next?

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Genius:

    An expert who has answered 1,000 questions.

  • Ford Master
  • 1,075 Answers

I would say your F250 has a {short circuit}going by all the facts you tell me there has to be a loose or faulty electrical connection in the ignition circuit.get it rechecked also check the main earth strap it could be broke/corroded.also check the main voltage regulator as this can cause this problem.hope this helps.adrian

Posted on Feb 25, 2009

2 Suggested Answers

DAD5bbbbg
  • 111 Answers

SOURCE: ford f250 superduty turbo diesel 7.3L Will not crank

Charge the batteries. take a Reading to make sure that you are getting almost 14v to both batteries. If it is not charging then take the alternator back off and have them check it. you might have bought a bad one. There is a way to test the glow plus with out taking them out. ( Take a piece of wire long enough to reach all the glow plugs from the battery. unplug the glow plug wire.If you touch the end of the glow plug with the hot wire it should make a little spark. if no spark then the glow plug is bad. do this to each one, but one at a time)

Posted on Mar 02, 2009

tneubauer
  • 437 Answers

SOURCE: replce cornering light? 2003 ford f250 superduty

Rear Assembly

Front Assembly

Right from Ford

Posted on Jun 01, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

03 ford superduty 6.0L diesel starts then dies only after sitting all night


You probably have an air leak in the fuel line. Air bubbles rise to the top-most area of the tubing and form a "vapor lock" . Find the leak, stop the problem! IT's probably a loose connection somewhere.

Jan 04, 2013 | 2003 Ford F250 Super Duty Crew Cab

1 Answer

93 ford f250 7.3 ltr diesal hard to start in cool or cold weather often run battery down have to recharge battery to start. new glow plugs installed 3 years ago. once started good for the day. warm weather...


This engine 'loves' glow plugs! One goes and the others try to handle the amps. Change them and you will have no probs! Other than that, I feel this is about the best diesel truck made!

May 21, 2010 | 1993 Ford F250

1 Answer

No crank/no start


try adding some fuel additive for cold weather starting

Mar 11, 2010 | 2003 Ford F250 Super Duty Crew Cab

1 Answer

F250 Diesel engine won't start in cold weather


check your glow plug relay! located on the right side head

Dec 27, 2009 | 2003 Ford F250 Super Duty Crew Cab

1 Answer

Ford f250 superduty turbo diesel 7.3L Will not crank


Charge the batteries. take a Reading to make sure that you are getting almost 14v to both batteries. If it is not charging then take the alternator back off and have them check it. you might have bought a bad one. There is a way to test the glow plus with out taking them out. ( Take a piece of wire long enough to reach all the glow plugs from the battery. unplug the glow plug wire.If you touch the end of the glow plug with the hot wire it should make a little spark. if no spark then the glow plug is bad. do this to each one, but one at a time)

Feb 25, 2009 | 2003 Ford F250 Super Duty Crew Cab

1 Answer

I have a ford f250 superduty 2003 diesel. It started to run rough when ideling. also slow reponse when you take off. I have just changed the oil, air filter, both fuel filters, and drained fuel for...


Sounds like an ECU issue.  check your fuses, see if you can get an error code from a scanner, they have one at most checker auto stores that you can use for free.  Could be a Intake Air Temp sensor or a Throttle Position Sensor.  Thats what I would start with.  Good luck.

Jan 23, 2009 | 2003 Ford F250 Super Duty Crew Cab

1 Answer

1992 Ford F250 7.3 Diesel hard to start


It is possible that some of the glow plugs might not be working. This will cause a hard start and smoking condition especially in cold weather.

Dec 21, 2008 | 1992 Ford F250

1 Answer

Heater motor


Test the circuit cold. (when the motor is not working) If power and grounds are good, replace the motor. When you have the blower motor out,check for any debri that has accumulated in the case.

Aug 28, 2008 | 2002 Ford F250 Super Duty SuperCab

1 Answer

Ford F250 Superduty Diesel Will not start


the crank position sensor on the front of the engine has been the most problematic parts. that is where i would start

Aug 26, 2008 | 2002 Ford F250 Super Duty SuperCab

Not finding what you are looking for?
2003 Ford F250 Super Duty Crew Cab Logo

389 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts

yadayada
yadayada

Level 3 Expert

61168 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Fordexpert

Level 3 Expert

5331 Answers

Are you a Ford Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...