How to replace a spark plug on GMC Sierra 1500 Classic?

The first step for Spark Plug replacement begins with turning the boot of the Spark Plug wire a 1/2 turn counterclockwise before removal and pulling on the boot itself rather than the cable or using a specialized tool. After turning the Spark Plug 1 or 2 rotations you should brush away dust in the area or use air blast methods before removing the Spark Plug. Multiple plugs need separate trays where the correct cylinder number marks each container. The correct placement of the Spark Plug washer must be confirmed during installation while you should check and adjust the Spark Plug gap to 1.524 mm (0.060 in) when needed. Fitting the Spark Plug into the specified cylinder requires hand-tightening to 15 n.m (11 lb ft) for used heads while new aluminum heads require 20 n.m (15 lb ft) torque and new iron heads need 30 n.m (22 lb ft).

OEM GMC Sierra 1500 Classic Spark Plug

Ignition Spark Plug

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GMC Sierra 1500 Classic Glow Plug Part Number: 12639701
$25.20 MSRP: $45.00
You Save: $19.80 (44%)
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Product Specifications
- Other Name: Glow Plug, Glow; Diesel Glow Plug; Glow Plug, Spark Ignition
- Replaces: 97364968
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007 GMC Sierra 1500 Classic | Denali, Hybrid, SL, SLE, SLT, WT | 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS

GMC Sierra 1500 Classic Spark Plug

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GMC Sierra 1500 Classic Spark Plug Parts Questions & Experts Answers

Glow Plug
12639701
Q: How to replace a spark plug on GMC Sierra 1500 Classic?
A:
The first step for Spark Plug replacement begins with turning the boot of the Spark Plug wire a 1/2 turn counterclockwise before removal and pulling on the boot itself rather than the cable or using a specialized tool. After turning the Spark Plug 1 or 2 rotations you should brush away dust in the area or use air blast methods before removing the Spark Plug. Multiple plugs need separate trays where the correct cylinder number marks each container. The correct placement of the Spark Plug washer must be confirmed during installation while you should check and adjust the Spark Plug gap to 1.524 mm (0.060 in) when needed. Fitting the Spark Plug into the specified cylinder requires hand-tightening to 15 n.m (11 lb ft) for used heads while new aluminum heads require 20 n.m (15 lb ft) torque and new iron heads need 30 n.m (22 lb ft).