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electrical gremlins help

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Old Feb 19, 2017 | 03:25 PM
  #1  
idi1993f350's Avatar
idi1993f350
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electrical gremlins help

trucks a crewcab long bed 93 f350 7.3 idi. I'm having some random electrical issues.
1. glowplugs do not work. new glowplugs, and swapped a extra relay/controller I had and still nothing. it is on a push button set up. I checked the ground for the switch and it is good. no power on any of the 4 posts on the relay. I followed diesel hubs guide. where do I trouble shoot next?

2.starter does not engage. when I tried to jump the fender mounted relay nothing happens. what can I check to trouble shoot? (when key is turned into the start, the dash warning lights flash for a second? such as "wif" "fuel filter" and the others that are there.) this is a new gear reduction starter, that was working prior.

3.when I reattach the batteries, the hazards and headlights flash for a little bit then stop? it goes away after a minute or 2 after having both batteries connected.
 
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Old Feb 20, 2017 | 04:44 PM
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7threeaz
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From: N. Arizona
Originally Posted by idi1993f350
trucks a crewcab long bed 93 f350 7.3 idi. I'm having some random electrical issues.
1. glowplugs do not work. new glowplugs, and swapped a extra relay/controller I had and still nothing. it is on a push button set up. I checked the ground for the switch and it is good. no power on any of the 4 posts on the relay. I followed diesel hubs guide. where do I trouble shoot next?

2.starter does not engage. when I tried to jump the fender mounted relay nothing happens. what can I check to trouble shoot? (when key is turned into the start, the dash warning lights flash for a second? such as "wif" "fuel filter" and the others that are there.) this is a new gear reduction starter, that was working prior.

3.when I reattach the batteries, the hazards and headlights flash for a little bit then stop? it goes away after a minute or 2 after having both batteries connected.
check all your grounds. Sounds like a bad ground somewhere.
 
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Old Feb 21, 2017 | 11:28 AM
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madpogue
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^^^^^ Bad main battery ground or bad main battery + connection. Also, have you LOAD tested the batteries?
 
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Old Feb 21, 2017 | 06:26 PM
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7threeaz
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Also i'll add, don't neglect the cables themselves either. Look for any missing or rubbed through insulation, damage etc.
 
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