Question about 2002 GMC Yukon

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Are the frost plugs threaded on 2002 Yukon GMC 5.3 engine block

I want to install a block heater on 2002 GMC Yukon.The vehicle is from southern US and never had 1 installed.I live in Manitoba,Canada,and need a block heater!!I picked 1 up and it has a threaded end,and before I start,need to ensure that's correct!

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  • Ed Friesen Nov 29, 2014

    It is a gas engine!



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As far as I know, it has regular knock in freeze plugs. I recently used a block heater that installs in lower radiator hose. Easy to install and use. I ordered it from autozone. It is available in a few different hose diameters.
Otherwise you will have to drill and tap existing freeze plug
Hope this helps

Posted on Nov 29, 2014


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Can someone plz tell me were the block heater is an how hard is it to put on 03 fl60 mbe 900 made the mistake of buying a southern truck lol an i live up north no winter provisions

there are circular inset flat plugs on the block of your motor,you have to drain the antifreeze from your vehicle,knock out that plug and replace with the block heater

Dec 17, 2016 | Cars & Trucks

1 Answer

Can I install a block heater where the three quarter threaded plug is just above the starter left side

My answer is no, block heaters normally install in a frost plug hole of engine, unless you have some special kind!

How to or install block heater

Jan 22, 2016 | Cars & Trucks

1 Answer

I need to install a block heater on my 2002 Yukon as there isn't a factory block heater installed. Where on the block do I install,and does it matter which plug location I use??

Gasoline or diesel? Not all vehicles have a block heater provision. There is a generic heater that you can install in the lower radiator hose.

Nov 12, 2014 | 2002 GMC Yukon

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How to install block heater on 97 chevy tahoe

The frost plugs that block heaters go in are along the sides of the engine block. About midway up from the bottom of block where the oil pan mates to the top block deck. 3 or 4 on each side, 1 to 2 inch diameter round metal plugs just slightly recessed in the block. Look below the exhaust manifold, behind the exhaust pipe on the block. Frost plugs are easy to punch out as long as you can get to them.
Punch in one side, and the other side will start to come out-then grab with pliers or vice grips to remove the plug.

When you buy a block heater for your Tahoe, it will come with an instruction sheet, and a diagram of the preferred or recommended frost plug hole to use the heater in. It will also usually show the positioning of the heater element in the block-how to orient the heater into the opening so the element does not touch the block anywhere, but is placed in so the element is exposed in the water jacket of the engine. That make sense? You do not need a sealer, as the block heater has its own O-ring rubber seal. When inserted and tightened down (small wrench or socket, about 3/8 inch or smaller size, do not over tighten-follow sheet instructions), the o-ring should not leak. Be sure and clean that recess well that frost plug was in- get all the rust and scale off with rags or emery cloth (sandpaper).
Not hard at all to install a block heater once the frost plug is removed. Getting access to the frost plug is the devil to deal with. If you are unsure, have it installed for you.

Jan 06, 2014 | 1997 Chevrolet Tahoe

1 Answer

Where is the plug for the engine to keep it warm during winter

That could vary greatly with what type of car it is and possibly what engine option you have (v-8, 6, or 4 cylinder). Also, most heaters now days are called a frost-plug heater. But, there are also other types which would also matter. Try looking for a cord end between the grille and the header behind it, or with the hood up, check the left side as you're facing the engine. Something else to consider if you just bought the car ..... it may have never had an engine heater installed. Even here in Minnesota we occasionally come across a vehicle that doesn't have one. They were either kept in a warm garage all the time, or they were from the southern states. Good luck!

Nov 05, 2013 | Cars & Trucks

1 Answer

Where is the block heater cord in my 2008 sierra gmc

Block heater should be under exhaust manifold on passenger side of vehicle in place of one of the frost plugs. trace the wire coming out of this to find the plug if in fact you do have a block heater. It may be an option on your truck.

Nov 24, 2010 | 2008 GMC Sierra 1500

2 Answers

How to repalce a knock sensor on my 2004 gmc yukon

Hi welcom to fixya. A defective knock sensor may cause engine detonation or reduced spark advance and fuel economy. When a knock sensor is removed and replaced, the sensor must be tightened to its specified torque. If the knock sensor is installed tighter than it should be, it may become too sensitive and provide an excessively high voltage signal, resulting in more spark ****** than required. When the knock sensor is installed looser than it should be, the knock sensor signal will be lower than normal, resulting in engine detonation.
To replace the knock sensor:
  • Disconnect the knock sensor wiring connector.
  • Then, unscrew the sensor.
  • Remove the knock sensor.
  • Reverse the procedures to install the part.
  • 15 ft.lbs.torque
  • hope this helps.Thank You for using fixya..iluv2fish.. Ray..

Jul 09, 2010 | 2004 GMC Yukon

1 Answer

Where is the block heater cord located?

If this vehicle came from the southern States or was not purchased with this option, then there is not one. I had to have one installed after market and it was not cheap.

Dec 08, 2009 | 2004 GMC Envoy

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How do I install a block heater on my Sequoia Ltd.

Supplier of block heater ( parts store) should have a listing if not with heater in package, of which frost plug to remove, as well as positioning of heater. Make sure engine cool, drain coolant via plug in block or rad, and instructions should tell you which frost plug & what position. I normally clean hole surface well with steel wool or scouring pad, then wipe clean with cloth, and add a dab of vaseline or similar grease to surface where "O" ring will sit. Insert plug, Tighten screw, run cord in a safe route away from exhaust etc, zip tie as necessary, and remember to plug in . Add coolant back in to system, heater on to bleed air out and let it run long enough with cap off, to help bleed air out. Check to insure no leak.

Oct 25, 2009 | 2003 Toyota Sequoia

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