Question about 2003 Ford F350 Super Duty DRW SuperCab

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Engine block heater not working/truck wont start if cold

I plug in truck but the heater isnt working replaced plug/block heater/and put in new glow plugs and still same problem also the truck sounds horrible when it does crank over.
thanks for any help or suggestions

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Hi bud876 did you get a faulty block heater? if the cord and block heater are new it should work when energized double check for power, as far as glow plugs do they cycle? is the glow plug relay working properly?you would be a lot better going with a circulating heater rather than a block heater,hope this helps good luck

Posted on Nov 09, 2008

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I would recommend disconnecting your glow plug relay if you are going to use starting fluid.
With starting fluid in the engine and the glow plugs turn on it may explode the fluid and do head damage. Starting fluid and any kind of ignition source ( hot glow plug ) is like a bomb.
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If the engine is now starting and you are letting the glow plug on for the reccommended amount of time than yes i would consider getting a glow plug that has a higher temperature range on it.
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