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Discussion Starter #1
When changing the glowplugs on my 2000 Excursion 7.3L PSD, is it better to warm up the engine before attempting to take out the old plugs? I was told that I could break the old plugs if I didn't warm up the engine first. Is that true?
 

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never heard tell of that one, just take them out and put the new ones in
 

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i've never had one break off,pulling them out hot wouldn't be fun because there under the valve covers.
 

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I have a 2000 f550 with a 7.3 powerstroke.I was told I have a plenum heater rather than glowplugs.
???? shouldn't have plenum heater instead of glow plugs,will have a air inlet heater for after eng started but will still need to heat cylinders.
 

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if you have a 7.3 you have both an intake plenum heater, that is the big wired connection coming from what looks like a GPR to the intake y shaped plenum air intake and glow plugs individually inserted int each of the eight cylinders.
 

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looking more like the garret 38r
 
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