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1994.5 - 1997 7.3L Power Stroke Diesel  

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Old Aug 10, 2008 | 10:32 AM
  #1  
ford250turbo's Avatar
ford250turbo
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no glow

96 7.3 turbo,96,000 miles had truck for a year, runs great in warm weather, but when it get cooler won't start. have to plug it in to get it to start.....

figured glow plugs were gone was the problem so i took rocker cover off on the drivers side and tested all four plugs by using a test light,, not sure this is correct way, was told it was a quick and dirty way. i did get a light. turned on key and tested with lite tester at rocket cover connector on the out side....no light ... it should be wire 1 & 5,,,tested all four plugs nothing.

tested glow plug relay appears to be working two small wires one stayed on the other flashed and about a minute later it comes on. with power on still no power to glow plugs.

is there another fuse or relay, wires coming out of relay is red but wires going to gp is brown....

need help as you can tell.
 
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Old Aug 10, 2008 | 10:49 AM
  #2  
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WALJON
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From: THUNDER BAY
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Did you check the two big terminals on the relay sounds like it is doing what it is supposed to but not switching bad relay
 
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Old Aug 10, 2008 | 12:50 PM
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ford250turbo
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one stays hot the other blinks when powered on and then comes back on about 1 minute later. still no power going to glow plug...manual said something about 2 15 amp fuse on motor block can't find any fuse other the the ones in dash and in main fuse box under hood.
 
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Old Aug 10, 2008 | 01:23 PM
  #4  
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ford250turbo
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reread question two large wires....one with black and red is hot the other has two brown wires and it isn't hot ....if this one goes to glow plugs then the unit is bad.
 
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Old Aug 10, 2008 | 02:16 PM
  #5  
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Cuda_jim
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From: MICHIGAN
The PCM completes the ground to the GPR.
The 2 fusible links are located on the starter solenoid on the passenger side fender.



More info here:
https://www.ford-trucks.com/forums/a...1&d=1193410938
 
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Old Aug 10, 2008 | 03:28 PM
  #6  
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looks like it is the glow plug relay....thanks guys for the help....
 
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