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  #1  
Old 02-13-2008, 05:55 PM
JBG JBG is offline
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Block Heater--how long before warm?

Did something crazy and ran 150+ feet of extension cord from my 2nd floor apt down to my wagon, which is now covered and surrounded in about 1 foot of "snow" (mostly ice and water, some snow underneath....horrible stuff).

Anyway, I'm trying to get the block warm enough to see if it'll start. It got above freezing today, barely, and shouldn't be too much colder in a few hours. My question is, how long should I wait before trying to turn over the engine? How long does it take the block to warm up? I seem to remember reading something like 3 hours, maybe less.

Thanks,
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Old 02-13-2008, 06:03 PM
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Wait atleast an hour. If you turn on the car and the needle comes off the line you are good.
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Old 02-13-2008, 06:25 PM
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An hour should be plenty.
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Old 02-13-2008, 08:29 PM
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I know there's no point in going over 2.5 hours, it won't get any warmer.
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Old 02-13-2008, 08:43 PM
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i've done as little as 30-40 minutes in 10-20 F weather (this past week in OH). started on the first crank.
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Old 02-13-2008, 08:46 PM
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i would guess it is best to plug it in when the engine is warm, as to help maintain temp
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