2003 Ford F-150 F-150 won't Start

Tiny
FI1268
  • MEMBER
  • 2003 FORD F-150
Electrical problem
2003 Ford F150 Two Wheel Drive Automatic

I have a 2003 F150 that won't start. It makes a clicking sound and headlights are very dim. After I try to start it there is a clicking sound in the dash for a few seconds. I have replaced the starter relay and this did not sove the problem. It appears to be some sort of relay problem but which one?
Do you
have the same problem?
Yes
No
Friday, December 4th, 2009 AT 12:47 PM

9 Replies

Tiny
BUDDYCRAIGG
  • EXPERT
With the head lights being dim, I'm inclined to think of a weak battery, or poor electrical connections.
Was this
answer
helpful?
Yes
No
Friday, December 4th, 2009 AT 6:35 PM
Tiny
FI1268
  • MEMBER
Battery is 1 year old and is reading 12.9 volts with a Voltmeter. When I try and start the car the lights go dim and the speedo and tach go crazy + the theft light and seatbelt light flash + I get the clicking sound from one of the relays. Could it be the ignition switch, would that cause the headlights to be dim when I turn them on or could it be the voltage regulator?
Was this
answer
helpful?
Yes
No
Friday, December 4th, 2009 AT 7:19 PM
Tiny
BUDDYCRAIGG
  • EXPERT
That all still sounds like a bad battery or a poor connection
Was this
answer
helpful?
Yes
No
-1
Saturday, December 5th, 2009 AT 2:45 AM
Tiny
FI1268
  • MEMBER
I have changed the relay and replaced the battery (Advance Auto Parts said battery was bad). It started 1 time and is now back to the clicking sound.
Any suggestions?
Was this
answer
helpful?
Yes
No
Sunday, December 6th, 2009 AT 11:49 AM
Tiny
BUDDYCRAIGG
  • EXPERT
Use a volt meter and take readings on the battery cable terminals (NOT THE BATTERY POSTS) while you have a friend crank the engine over.

With the info you have given, it still sounds like the electrical system is not getting enough power.
Was this
answer
helpful?
Yes
No
Monday, December 7th, 2009 AT 12:49 AM
Tiny
FI1268
  • MEMBER
I have replaced the starter relay, ignition switch, starter and the battery. Truck now will start, but I have burned up 2 starter motors as the starter motor continues to run after the truck starts. It idles very high when you first start it, so I did not hear the starter motor continuing to turn. Any suggestions? Is there another relay somewhere?
Was this
answer
helpful?
Yes
No
Wednesday, December 9th, 2009 AT 5:48 PM
Tiny
BUDDYCRAIGG
  • EXPERT
Was a burnt up starter the cause of your first problem?
Was this
answer
helpful?
Yes
No
+1
Wednesday, December 9th, 2009 AT 6:58 PM
Tiny
FI1268
  • MEMBER
I am now assuming that was the problem, even though the vehicle did almost start once. As stated before, I have now relaced the battery, starter relay, ignition switch and starter. What else could make the starter run after the the vehicle starts? I am on my 3rd starter and I can't even start the vehicle to get it to a repair shop, because it will burn up the staarter and I'm afraid of frying other components.
Was this
answer
helpful?
Yes
No
+1
Thursday, December 10th, 2009 AT 7:35 AM
Tiny
BUDDYCRAIGG
  • EXPERT
I've only seen 2 causes for a starter to stay engaged against the flywheel after the engine was started.

I once saw on a 1988 91 Dodge Shadow, the ignition lock didn't turn freely and it partially held the switch in between being in the CRANK and ON position.

And I've seen 2 instances on GM V8s (like old school 350s) that the starter was not shimmed correctly.

Fords don't use shims, so i'm leaning towards an ignition switch or lock problem ( or possible something wrong with the linkage between the 2)
Was this
answer
helpful?
Yes
No
Thursday, December 10th, 2009 AT 10:32 PM

Please login or register to post a reply.

Recommended Guides