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Spark Plug Replacment - 07 Avalanche

Rob1

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Rob1 Enthusiast

Rob1

Posted
Posted

Hello all,

 

Just wondering how hard it is to replace the spark plugs in my 07 Avalanche (5.3)? I have never really done any major engine work but looking at the engine it looks like I will be able to reach them all.

 

Anyway - is there anywhere I can can find info on the torque settings or is it just the normal "half' turn to tighten? Also need the gap size.

 

What plugs do you guys recommend?

 

I'll assume the truck still have the original plugs (104K Miles)... anything to watch for when removing?

 

Cheers

MS3DALE Senior Enthusiast

MS3DALE

Posted
Posted

2007 Chevrolet Avalanche - 4WD | Avalanche, Escalade, Suburban, Tahoe, Yukon VIN C/K Service Manual | Document ID: 1707539

--------------------------------------------------------------------------------

 

Spark Plug Replacement

Removal Procedure

 

Remove the spark plug wire from the spark plug.

1.1. Twist the spark plug wire boot a 1/2 turn.

 

1.2. Pull only on the boot in order to remove the wire from the spark plug.

 

Brush or using compressed air, blow away any dirt from around the spark plug.

Remove the spark plug.

If removing more than one plug, place each plug in a tray marked with the corresponding cylinder number.

 

Installation Procedure:

Inspect the spark plug gap. Adjust the gap as needed.

Spark Plug Gap

1.02 mm

0.040 in

 

Hand start the spark plug in the corresponding cylinder.

 

Tighten the plug to 15 N·m (11 lb ft).

 

Install the spark plug wire to the spark plug.

Inspect the spark plug wire for proper installation:

5.1. Push sideways on each boot in order to inspect the seating.

 

5.2. Reinstall any loose boot.

Rob1 Enthusiast

Rob1

Posted
  • Author
Posted
2007 Chevrolet Avalanche - 4WD | Avalanche, Escalade, Suburban, Tahoe, Yukon VIN C/K Service Manual | Document ID: 1707539

--------------------------------------------------------------------------------

 

Spark Plug Replacement

Removal Procedure

 

Remove the spark plug wire from the spark plug.

1.1. Twist the spark plug wire boot a 1/2 turn.

 

1.2. Pull only on the boot in order to remove the wire from the spark plug.

 

Brush or using compressed air, blow away any dirt from around the spark plug.

Remove the spark plug.

If removing more than one plug, place each plug in a tray marked with the corresponding cylinder number.

 

Installation Procedure:

Inspect the spark plug gap. Adjust the gap as needed.

Spark Plug Gap

1.02 mm

0.040 in

 

Hand start the spark plug in the corresponding cylinder.

 

Tighten the plug to 15 N·m (11 lb ft).

 

Install the spark plug wire to the spark plug.

Inspect the spark plug wire for proper installation:

5.1. Push sideways on each boot in order to inspect the seating.

 

5.2. Reinstall any loose boot.

 

 

Excellent !!

 

Thanks

taylormade Enthusiast

taylormade

Posted
Posted
2007 Chevrolet Avalanche - 4WD | Avalanche, Escalade, Suburban, Tahoe, Yukon VIN C/K Service Manual | Document ID: 1707539

--------------------------------------------------------------------------------

 

Spark Plug Replacement

Removal Procedure

 

Remove the spark plug wire from the spark plug.

1.1. Twist the spark plug wire boot a 1/2 turn.

 

1.2. Pull only on the boot in order to remove the wire from the spark plug.

 

Brush or using compressed air, blow away any dirt from around the spark plug.

Remove the spark plug.

If removing more than one plug, place each plug in a tray marked with the corresponding cylinder number.

 

Installation Procedure:

Inspect the spark plug gap. Adjust the gap as needed.

Spark Plug Gap

1.02 mm

0.040 in

 

Hand start the spark plug in the corresponding cylinder.

 

Tighten the plug to 15 N·m (11 lb ft).

 

Install the spark plug wire to the spark plug.

Inspect the spark plug wire for proper installation:

5.1. Push sideways on each boot in order to inspect the seating.

 

5.2. Reinstall any loose boot.

 

 

Excellent !!

 

Thanks

 

 

 

And as a seriously dumb addition (since it mentioned doing more than one) - do them one at a time (one plug, one wire), pulling all the plugs, and all the wires, and then trying to get the wires back in correct order is a PITA, unless they do something on the newer ones that I'm unfamiliar with.

frupp Enthusiast

frupp

Posted
Posted

If you use platinum or iridium tip plugs they are per-gapped and you should not try to adjust the gap. Do a search for spark plugs and/or look at the links below:

 

http://www.gm-trucks.com/forums/index.php?...=spark+plug+gap'>http://www.gm-trucks.com/forums/index.php?...=spark+plug+gap'>http://www.gm-trucks.com/forums/index.php?...=spark+plug+gap'>http://www.gm-trucks.com/forums/index.php?...=spark+plug+gap

 

http://www.gm-trucks.com/forums/index.php?...=spark+plug+gap

Nytemare Senior Enthusiast

Nytemare

Posted
Posted
2007 Chevrolet Avalanche - 4WD | Avalanche, Escalade, Suburban, Tahoe, Yukon VIN C/K Service Manual | Document ID: 1707539

--------------------------------------------------------------------------------

 

Spark Plug Replacement

Removal Procedure

 

Remove the spark plug wire from the spark plug.

1.1. Twist the spark plug wire boot a 1/2 turn.

 

1.2. Pull only on the boot in order to remove the wire from the spark plug.

 

Brush or using compressed air, blow away any dirt from around the spark plug.

Remove the spark plug.

If removing more than one plug, place each plug in a tray marked with the corresponding cylinder number.

 

Installation Procedure:

Inspect the spark plug gap. Adjust the gap as needed.

Spark Plug Gap

1.02 mm

0.040 in

 

Hand start the spark plug in the corresponding cylinder.

 

Tighten the plug to 15 N·m (11 lb ft).

 

Install the spark plug wire to the spark plug.

Inspect the spark plug wire for proper installation:

5.1. Push sideways on each boot in order to inspect the seating.

 

5.2. Reinstall any loose boot.

 

 

Excellent !!

 

Thanks

 

 

 

And as a seriously dumb addition (since it mentioned doing more than one) - do them one at a time (one plug, one wire), pulling all the plugs, and all the wires, and then trying to get the wires back in correct order is a PITA, unless they do something on the newer ones that I'm unfamiliar with.

 

Its 1 plug 1 wire per cylinder...Its individual coil packs on all LS series engines no distributor. See pic below...

 

2009-Vortec-5-3L-Tahoe-XFE.jpg

Rob1 Enthusiast

Rob1

Posted
  • Author
Posted
2007 Chevrolet Avalanche - 4WD | Avalanche, Escalade, Suburban, Tahoe, Yukon VIN C/K Service Manual | Document ID: 1707539

--------------------------------------------------------------------------------

 

Spark Plug Replacement

Removal Procedure

 

Remove the spark plug wire from the spark plug.

1.1. Twist the spark plug wire boot a 1/2 turn.

 

1.2. Pull only on the boot in order to remove the wire from the spark plug.

 

Brush or using compressed air, blow away any dirt from around the spark plug.

Remove the spark plug.

If removing more than one plug, place each plug in a tray marked with the corresponding cylinder number.

 

Installation Procedure:

Inspect the spark plug gap. Adjust the gap as needed.

Spark Plug Gap

1.02 mm

0.040 in

 

Hand start the spark plug in the corresponding cylinder.

 

Tighten the plug to 15 N·m (11 lb ft).

 

Install the spark plug wire to the spark plug.

Inspect the spark plug wire for proper installation:

5.1. Push sideways on each boot in order to inspect the seating.

 

5.2. Reinstall any loose boot.

 

 

Excellent !!

 

Thanks

 

 

 

And as a seriously dumb addition (since it mentioned doing more than one) - do them one at a time (one plug, one wire), pulling all the plugs, and all the wires, and then trying to get the wires back in correct order is a PITA, unless they do something on the newer ones that I'm unfamiliar with.

 

Its 1 plug 1 wire per cylinder...Its individual coil packs on all LS series engines no distributor. See pic below...

 

2009-Vortec-5-3L-Tahoe-XFE.jpg

 

 

Do you need to change the wires as well as the plugs? Anyone have an idea on costs for wires/plugs using GM original ?

 

Cheers

Nytemare Senior Enthusiast

Nytemare

Posted
Posted
Do you need to change the wires as well as the plugs? Anyone have an idea on costs for wires/plugs using GM original ?

 

Cheers

Nope...use an ohm meter and check the resistance of the wires...anything over 5000ohm is toast...if you replace one replace them all...replacement set with lifetime warranty is usually around 50-60 bucks.

I used MSD wires on my 03, they were 68 bucks.

Wingnut Senior Enthusiast

Wingnut

Posted
Posted

After reading what's been said above...The only thing I have to add is...Replace them with what you take out. Spark plugs that last 100k miles? Sign me up for another set. I'm the same way with their brakes...The GMT-800 brakes (not sure about the GMT-900's yet) would last for over 100k miles. That's some impressive shit right there.

Nytemare Senior Enthusiast

Nytemare

Posted
Posted
After reading what's been said above...The only thing I have to add is...Replace them with what you take out. Spark plugs that last 100k miles? Sign me up for another set. I'm the same way with their brakes...The GMT-800 brakes (not sure about the GMT-900's yet) would last for over 100k miles. That's some impressive shit right there.

Yup...I never replaced the brakes on my GMT-800

and the plugs and wires....well, ACDelco plugs or NGK....thats who makes the ACDelco ones...as for the wires...I have no idea who makes em for GM

Wingnut Senior Enthusiast

Wingnut

Posted
Posted

Yeah...135-140k miles on Fred...Still on the factory pads as far as I know. And they're not even half worn. Truck stops great with zero vibration.

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