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7.3L IDI Diesels (Not Power Strokes) Technical discussion of topics related to vehicles powered by the 7.3 Liter In-Direct Injection Navistar engines.

 
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post #1 of 7 (permalink) Old 11-13-2012, 09:08 AM Thread Starter
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glow plug connector

Have a 94 F-350 and want to check the glow plugs for resistance. The connectors at the tip are a brittle plastic and am worried about breaking them while trying to remove them. New glow plugs installed by my local Ford dealer about 8 months ago, so they have been off recently. Is there a trick to removing them safely?
I keep blowing the fuse that controls the wait to start light and think a shorted glow plug may be the culprit. Fuse blows after each turn of the key, and now they immediately blow after the truck is running if I insert one after starting. Any suggestions???
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post #2 of 7 (permalink) Old 11-13-2012, 09:13 AM
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The wiring from the controller to the GP's should only carry current when the GP's are energized. If a fuse keeps blowing, I would suspect the wiring leading up to the controller first, then the controller itself.

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post #3 of 7 (permalink) Old 11-13-2012, 10:00 AM
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Glow plug connectors

I have the same question on removing the GP connectors as mine seem awfully tight on the GP stem too, so how are they removed without breaking them?
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post #4 of 7 (permalink) Old 11-13-2012, 10:08 AM
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They pull off. If the insulation is brittle and falls apart, you can replace the ends with bullet connectors and cover with shrink tubing.

1994 F-350 7.3 IDI Turbo, crew cab, E4OD,4:10 L/S, LB, Dually Photos
ATS Turbo upgrades: 3" DP with 3" exhaust Magnaflow XL muffler: Pictures Here
2012 Copper Canyon 273 FWRET w/2 slides, Air Lift 5000 bags
Pillar pod: Autometer C2 Series gauges: pyro,trans, boost, water, oil pressure
Hypermax Cowl induction, K&N air filter, flex-a-lite 26K trans cooler with fan,Tekonsha prodigy
Train Horns: Pictures here

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post #5 of 7 (permalink) Old 11-13-2012, 09:07 PM Thread Starter
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problem solved. The wiring harness for cruise control was shorting at the shift lever and was killing the fuse as it interlocks with the tranny sensor I guess. Thanks for the help.
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post #6 of 7 (permalink) Old 11-13-2012, 09:12 PM
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Glad you got it fixed.

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ATS Turbo upgrades: 3" DP with 3" exhaust Magnaflow XL muffler: Pictures Here
2012 Copper Canyon 273 FWRET w/2 slides, Air Lift 5000 bags
Pillar pod: Autometer C2 Series gauges: pyro,trans, boost, water, oil pressure
Hypermax Cowl induction, K&N air filter, flex-a-lite 26K trans cooler with fan,Tekonsha prodigy
Train Horns: Pictures here

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post #7 of 7 (permalink) Old 11-14-2012, 07:29 PM
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I have replaced about half of mine with female bullet connectors.

They fit just fine.
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