Notices
1997 - 2003 F150 1997-2003 F150, 1997-1999 F250LD, 7700 & 2004 F150 Heritage
Sponsored by:
Sponsored by: Auxito

Starting issues

Thread Tools
 
Search this Thread
 
Old Jun 28, 2012 | 02:17 PM
  #1  
cajun1965's Avatar
cajun1965
Thread Starter
|
Junior User
Joined: Jun 2007
Posts: 57
Likes: 0
Starting issues

2000 2WD 4.6L
I was trouble shooting why the truck will not start after it has run for awhile then sits for about an hour. I was checking the connections on the solenoid switch on the fire wall when my wrench slipped and touched both terminals on the solenoid and the engine starter kicked in. I tightened the connection then tried to start the truck with no luck. so I tried leaving the key in the "ON" position and jumped the two terminals and the truck started. Does this tell me I have a bad solenoid switch?
 
Reply
Old Jun 28, 2012 | 05:30 PM
  #2  
Bluegrass 7's Avatar
Bluegrass 7
Lead Driver
15 Year Member
Joined: Sep 2006
Posts: 7,907
Likes: 143
More probable the ignition switch.
In start position a circuit to the solenoid is completed so it cuts in the starter.
In run, that circuit is not involved.
You just by passed it at the solenoid with the igniton in run.
As soon as the crank sensor detects crank movement the PCM will apply the rest of the ignition and fuel so the motor will start.
Good luck.
 
Reply
Old Jun 28, 2012 | 09:05 PM
  #3  
cajun1965's Avatar
cajun1965
Thread Starter
|
Junior User
Joined: Jun 2007
Posts: 57
Likes: 0
Well I took a chance and changed out the ignition switch, no luck. The battery is good the Alt. is good, I checked all fuses and they are good, is it possible that the solenoid is bad?
 
Reply
Old Jun 30, 2012 | 11:09 AM
  #4  
cajun1965's Avatar
cajun1965
Thread Starter
|
Junior User
Joined: Jun 2007
Posts: 57
Likes: 0
Alright, Trying to track down the issue. when key is put in the start position the engine will not turn over I hear the relays making contact under the dash by the steering wheel. With the key in the run postion I can start the truck by jumping the solenoid on the firewall. I believe this is telling me that all circuits are closing allowing the truck to start. Could the solenoid be bad?
 
Reply
Old Jun 30, 2012 | 02:24 PM
  #5  
Bluegrass 7's Avatar
Bluegrass 7
Lead Driver
15 Year Member
Joined: Sep 2006
Posts: 7,907
Likes: 143
The start 'circuit' is not being 'extended' to the start relay.
You already have proven the start relay will function because it was able to close with your shunting action, the same as the start circuit is supposed to do and cranks the motor.
Use voltmeter on the lead coming from the start circuit and see if it is missing.
You can also remove both leads from the start relay and ohm it. If open it's faulty, to answer you question.
Good luck.
 
Reply
Old Jun 30, 2012 | 04:19 PM
  #6  
cajun1965's Avatar
cajun1965
Thread Starter
|
Junior User
Joined: Jun 2007
Posts: 57
Likes: 0
FIXED!

My hunch was right, pulled the solenoid, did not ohm test it, did not need to. when i pulled it I could hear something rattle inside. put in new solenoid and now it cranks everytime.
 
Reply
Old Jun 30, 2012 | 04:52 PM
  #7  
Bluegrass 7's Avatar
Bluegrass 7
Lead Driver
15 Year Member
Joined: Sep 2006
Posts: 7,907
Likes: 143
You are making us all work overtime on such an easy problem.
Good luck.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Azidan
1973 - 1979 F-100 & Larger F-Series Trucks
27
Apr 20, 2019 09:42 PM
JSMskater
1973 - 1979 F-100 & Larger F-Series Trucks
49
Jan 16, 2018 11:29 AM
markeyd
1961 - 1966 F-100 & Larger F-Series Trucks
6
Feb 21, 2016 07:32 PM
Maine_Lobsterman
1987 - 1996 F150 & Larger F-Series Trucks
1
Mar 3, 2015 09:38 AM
89ford00
1997 - 2003 F150
19
Aug 4, 2010 12:16 AM




All times are GMT -5. The time now is 10:36 AM.