Does it hurt to leave your truck plugged in! - Dodge Cummins Diesel Forum
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post #1 of 15 (permalink) Old 01-23-2013, 07:23 AM Thread Starter
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Does it hurt to leave your truck plugged in!

I have my truck stored in my unheated Pole Barn and I have been leaving it plugged in the last couple days because its been real cold 0 degrees here (It starts faster then my new car) just wondering if I should leave it plugged in or ??? I like to go out and start it everyday or so and let it run for 15-20 minutes.... will it hurt?? anyone else do this??

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post #2 of 15 (permalink) Old 01-23-2013, 07:56 AM
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I'd be ok with leaving it plugged in but I wouldn't start it an let it idle. Don't bother starting unless you're going to run it.

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post #3 of 15 (permalink) Old 01-23-2013, 09:33 AM
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When I do decide to plug in, I use a timer that runs the bock heater two hours before I wake up for work. When the idea came to me, I thought I was being original, but it looks as if a lot of others use them as well. That's an option for you.

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post #4 of 15 (permalink) Old 01-23-2013, 09:35 AM
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Won't hurt anything but the electric bill. They take a lot of power and it's a terrible waste if you're not using it.

Steve g

91 D-250 LE Bone stock so far 615,000 kms and everything working just like the factory intended with no POTS, pans, string, jumper wires or ball point pen springs.
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post #5 of 15 (permalink) Old 01-23-2013, 09:40 AM
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Won't hurt a thing, except you wallet..
We have contractors that leave machines plugged in 24/7 from the first freeze to mid fall. I'm sure they are not worried about the light bill tho.

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post #6 of 15 (permalink) Old 01-23-2013, 09:40 AM
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If two hours before start up seems to make it start easy, that's fine. I also agree that starting it and idling the truck for 15 min every day, does more harm then good. Cummins says you should only warm up via idle till the idle speed smooths out, then continue warm up with low rpm driving due to the fact Cummins dissipate heat so well. So don't start it if you aren't gonna drive it

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post #7 of 15 (permalink) Old 01-23-2013, 10:41 AM
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Originally Posted by Steve g View Post
Won't hurt anything but the electric bill. They take a lot of power and it's a terrible waste if you're not using it.

Steve g
Someone did a huge review on here about that awhile ago I think and they said it really doesn't affect you electric bill much at all. They had a bunch of calculations and other crap. Not sure how true it is, but sounded legit.

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post #8 of 15 (permalink) Old 01-23-2013, 11:28 AM
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all heaters are a dead short and use alot of amps/watts/money, when you plug one in and it's cold enough to make it come on you can hear and see an arch whitch means there are quite a few amps beeing turned on.

i love pluging mine in the night before i drive it when it's cold, you have instant heat and the ol cummins is sooooo much happier.

if it costs an extra 30.00 a month during the cold months it's worth it just in saving ware and tear on the engine.

Dar

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post #9 of 15 (permalink) Old 01-23-2013, 12:54 PM
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I agree with these guys, shouldnt hurt overnight. 24/7 seems pointless, I use a timer to flip it on 2 hours before I leave work work in the morning.
Though I have heard storys about them melting the plug off the cord on the block side, the kid had it plugged in 24/7 because his cooling system was all water....
ch

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post #10 of 15 (permalink) Old 01-23-2013, 01:02 PM
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Quote:
Originally Posted by mthomp1 View Post
When I do decide to plug in, I use a timer that runs the bock heater two hours before I wake up for work. When the idea came to me, I thought I was being original, but it looks as if a lot of others use them as well. That's an option for you.
Where did you find a timer that would handle the heater?

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post #11 of 15 (permalink) Old 01-23-2013, 01:08 PM
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Where did you find a timer that would handle the heater?
Walmart. Generic rotary-style timer that has the ground prong on it. Hasn't failed me on 2 different trucks over the last ~5yrs.


+1 on not starting the truck unless you are going to actually drive it. At an idle all you are doing is somewhat warming the motor. Great recipe for generating condensation and carbon buildup, and even a little bit of cylinder washdown.

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post #12 of 15 (permalink) Old 01-23-2013, 01:13 PM
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I have a couple Walmart timers but they are only 2 prong 1875 watt, I'll have to check again next time i'm there.

92 D250 parted out

97 2500 4X4 auto, 8 fuel plate, BD converter

96 F250 4x4 with 92 Cummins zf5
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