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Go Back   Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum > 2002 - 2009 TrailBlazer/Envoy Tech > 02-09 General Tech Q&A > General

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  #1  
Old 02-04-2007, 02:57 PM
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Frostee Frostee is offline
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Engine Block heater

Where would the plug for the engine block heater be located? On the RPO code list for my TB, it says I have one, but have never been able to find the plug.

I'm not a big fan of plugging in a vehicle over night, but with the temperature forecast to go as low as -28*C (-18*F) with a windchill of -41*C (-42*F) , I'm thinking it may be a good idea so that the TB starts in the morning...
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Old 02-04-2007, 03:46 PM
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It's in a pouch right behind the battery When you plug it in, you should hear a ticking sound. We've never used it, but it's -18*c here w. a -30*c wind chill!!!

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Old 02-04-2007, 03:49 PM
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Quote:
Originally Posted by Frostee View Post
Where would the plug for the engine block heater be located? On the RPO code list for my TB, it says I have one, but have never been able to find the plug.

I'm not a big fan of plugging in a vehicle over night, but with the temperature forecast to go as low as -28*C (-18*F) with a windchill of -41*C (-42*F) , I'm thinking it may be a good idea so that the TB starts in the morning...
The block heater is actually an engine coolant heater. It looks from diagrams like it located under the PCM, and the 110v connection is on a cable which runs from the heater to a connector enclosed in a shroud with a two bolt flange. Can't tell from the picture where the flange is bolted. Hope this helps.
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Old 02-04-2007, 03:50 PM
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Originally Posted by ieatglue View Post
It's in a pouch right behind the battery When you plug it in, you should hear a ticking sound. We've never used it, but it's -18*c here w. a -30*c wind chill!!!
ive never used it either (obviously). but i can only imagine the hard time any vehicle is going to have tomorrow starting (unless its in a garage out of the wind)
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Old 02-04-2007, 05:30 PM
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Originally Posted by ieatglue View Post
It's in a pouch right behind the battery When you plug it in, you should hear a ticking sound. We've never used it, but it's -18*c here w. a -30*c wind chill!!!

I though that one was for trailer accessory power

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Old 02-04-2007, 08:23 PM
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well, i just discovered that my autostart has a 'cold' mode. so i set it to turn on for 15 minutes whenever it goes to -20*C (-7*F) or lower. then it keeps doing that every 2.5 hours...

its too cold to even go look for the plug
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Old 02-04-2007, 08:29 PM
ScarabEpic22 ScarabEpic22 is offline
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I though that one was for trailer accessory power

B.
Nope, that is the other red wire right below the arrow in that pic.
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Old 02-04-2007, 08:31 PM
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Quote:
Originally Posted by Frostee View Post
well, i just discovered that my autostart has a 'cold' mode. so i set it to turn on for 15 minutes whenever it goes to -20*C (-7*F) or lower. then it keeps doing that every 2.5 hours...

its too cold to even go look for the plug
Oh get out there ya wimp!!! Just messin with you. I imagine that remote start feature is a great thing to have if you live in places that get that cold.
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Old 02-04-2007, 08:38 PM
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Oh get out there ya wimp!!! Just messin with you. I imagine that remote start feature is a great thing to have if you live in places that get that cold.
is it ever! i cant imagine living without one now...

i wish the previous owner had gotten it wired to the heated seats though, because the leather remains cold for a while. that woulda been sweeeeeeeeet
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Old 02-04-2007, 08:43 PM
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is it ever! i cant imagine living without one now...

i wish the previous owner had gotten it wired to the heated seats though, because the leather remains cold for a while. that woulda been sweeeeeeeeet
Don't know about the one you have, but a few of the remote starts I have been looking at have an aux line on them for just such features. Alot of people will have it wired to the rear defrost, but I would think you could find a way to put it on the seat heaters.
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