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09 Sierra Gmc - Block Heater

Biireal

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Biireal Enthusiast

Biireal

Posted
Posted

OK, I bought this truck back in Delaware and recently moved to Eielson AFB, Alaska.

 

I need to get this truck winterized and so far this block heater is a freak'n pain. I saw a post on how a guy did it on his 2007, but it looks completely different under here.

 

As I look up, straight above my oil filter, I see an assembly where two coolant lines attach. Right above this assembly it appears I've found the plug with an allen wrench fit. However, the space given to me looks ridiculous and I'm not sure this is the correct location. I might have been given the wrong block heater. Has anyone got any information on how to install a block heater on an 09??

 

Tomorrow I'll try and get some pictures of what I'm seeing.

 

 

Thanks,

Breal

MS3DALE Senior Enthusiast

MS3DALE

Posted
Posted

Yes,what engine do you have,The heater goes in the side of the block..On the 4.8/5.3 the heater goes towards the rear of the block,on the 6.0/6.2 it goes towards the front of the block.

The two coolant lines you see are actually oil cooler lines.

It sounds like you found where it goes because you do have to remove a 17mm hex plug to install it,On my '04 I removed the front driveshaft to make it easier to gain access to the plug.

You may have to remove the oil cooler lines you noticed also in order to gain access,just make sure you have a new gasket before you remove them (Its GM part#12611384)

bbb Enthusiast

bbb

Posted
Posted

I thought that the early production trucks in 07 had the b/htr in the rear and then it was moved to the front hole mid year...when i replaced mine cuz it was leaking and the cord was burnt off we needed to figure out which one it was cuz the cords are not the same length.

MS3DALE Senior Enthusiast

MS3DALE

Posted
Posted
I thought that the early production trucks in 07 had the b/htr in the rear and then it was moved to the front hole mid year...when i replaced mine cuz it was leaking and the cord was burnt off we needed to figure out which one it was cuz the cords are not the same length.

 

Thats very possible,My truck was built March 5th of '07 and has it on the front,I thought the 4.8/5.3's had it in a different location than the 6.0/6.2's,but I could be wrong on that,I'll have to do some digging in the service manual and check.

I know on the GMT800 trucks they were all in the rear.

Biireal Enthusiast

Biireal

Posted
  • Author
Posted

Sorry about that. I have the 5.3L

 

I'm going to take pictures tomorrow. I think my truck will be fine the next couple of days hasn't been colder than -20.

MS3DALE Senior Enthusiast

MS3DALE

Posted
Posted

OK,I just looked in SI (Service Information in GM Global-Connect) The 5.3 has the heater in the rear,The 6.0/6.2 has it in the front.

The 6.0 in the HD's (RPO LY6) also has the heater in the rear.

MS3DALE Senior Enthusiast

MS3DALE

Posted
Posted
I think my truck will be fine the next couple of days hasn't been colder than -20.

 

You just keep those cold temperatures up there will ya'? :lol:

Biireal Enthusiast

Biireal

Posted
  • Author
Posted

Yeah sadly it gets around -50 up here... Just trying to get this done before then.

 

The space between those coolant lines and where the heater would go seems to be impossible. Like I said I'll post some pictures tomorrow.

 

Thanks for the help so far!

Biireal Enthusiast

Biireal

Posted
  • Author
Posted

OK finally I got some pictures. However, NAPA is telling me that it should be in the front of the block. I don't know if they know what they are talking about.

 

 

block1.jpg

This is the coolant assembly above the oil filter

 

Now below you can see the assembly and how close it is to the plug. Not a lot of space...

block4.jpg

MS3DALE Senior Enthusiast

MS3DALE

Posted
Posted

Those are oil cooler lines,It may have to go in the front side of the block,you see the '07/'08 4.8 & 5.3 V8's did not offer an engine oil cooler,however for '09 a H.D. cooling package became available,and obviously it looks like your truck has it.

If you post me the last 8 digits of your VIN I can confirm this.

Biireal Enthusiast

Biireal

Posted
  • Author
Posted

9G213419

 

Yes I do have a H.D. cooling pack apparently. I just googled it and I'm coming up with a few results stating that it was included in the 09 All Terrain pkg.

MS3DALE Senior Enthusiast

MS3DALE

Posted
Posted
9G213419

 

Yes I do have a H.D. cooling pack apparently. I just googled it and I'm coming up with a few results stating that it was included in the 09 All Terrain pkg.

 

Yep,You have it,Its actually part of the 6-spd.transmission pkg.

If you look in your glovebox on the SPID label you will see the following RPO codes on it.....

K5L - H.D. COOLING SYSTEM

KC4 - EXTERNAL ENGINE OIL COOLER

KNP - EXT TRANSMISSION OIL COOLER

MS3DALE Senior Enthusiast

MS3DALE

Posted
Posted
I'm guessing I'll have to remove my skid plate to look for it in the front.

 

Yes,The plastic one in the very front for sure,and possibly the steel one under the oil pan also.

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