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ford f350 glow plug problems
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nappy2
New User
Dec 19, 2008, 6:54 PM
Post #1 of 5
(10061 views)
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ford f350 glow plug problems
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I have been working on a 1999 ford f350 super duty ..with a 7.3 diesel engine. The glow plugs don't work so I tested the glow plug relay and replaced it. But the problem is when I hooked the new relay up the glow plug worked but would not shut off... also it would drain the battery very quickly . So is it a bad ground? or something else?
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Loren Champlain Sr
Veteran
/ Moderator
Dec 19, 2008, 7:15 PM
Post #2 of 5
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Re: ford f350 glow plug problems
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I know virtually nothing about diesels, but the glow plugs draw a LOT of amperage. A LOT. If the battery (ies) are not up to snuff, it'll suck that sucker (the battery) down in a heartbeat. If the battery voltage is low enough, the relay may stick closed. I've seen starters continue cranking after ignition off due to low battery voltage. Sounds impossible, but... Loren SW Washington
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Loren Champlain Sr
Veteran
/ Moderator
Dec 19, 2008, 8:53 PM
Post #4 of 5
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Re: ford f350 glow plug problems
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Hopefully, someone with diesel knowledge will jump in here. I'm thinking that it could be a faulty injector that is shorted to ground? Or, just weak battery? Loren SW Washington
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