starter staying engaged; glow plug system faulty; alternator circuit? - Ford Powerstroke Diesel Forum
LinkBack Thread Tools Display Modes
post #1 of 1 Old 12-31-2013, 10:22 PM
Posts: n/a
Mentioned: Post(s)
Quoted: Post(s)
starter staying engaged; glow plug system faulty; alternator circuit?

My dad's 2000 7.3. Recent head job (cracked from running out of coolant). 250000 mi. auto.

Didn't start well--glow plugs were suspected.

Didn't crank--when they started it by manually arcing the starter, a transmission clatter was heard (intermittently).

I come on the scene: Checking into it, the starter problem is related to shift lever position sensor. So that works now by jiggling the lever. Cranks but wont start (it's cold).

Interesting pieces of information for someone to put together:
no power to the gpr 'in' terminal--power on the small terminals--whether I have the ignition off or on.
gpr relay clicks.
no power to the intake heater relay (?) right beside the gpr.--ignition off or on
don't know if ihr clicks or not--there are three volts on one of the main terminals
putting power to the fender mounted starter relay cranks the engine--ignition off or on
no power on the ALTERNATOR terminal--iooo
putting power with jumper wire to the alternator terminal CRANKS THE ENGINE--iooo
putting power to the gpr relay 'in' terminal cranks the engine--iooo

I believe the megafuse is blown. Little brother changed the alternator without removing battery cables. If I replace the fuse, the starter will go all the time (my jumper wire replicated this). Visual inspection of wiring harness done. Under dash fuses checked. This is too much for my little brain-- it needs more information, like maybe a good wiring diagram (I couldn't find one online--not a good one)

All brilliant and helpful comments welcomed and sincerely appreciated.
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome