How to replace spark plugs safely and effectively on Chevrolet HHR?

Always let the engine cool down so you do not risk damaging the Spark Plug threads or Cylinder Head. Remove the ignition coil housing at the start and clean out the Spark Plug holes with compressed air to get rid of any water and contaminants. Remove the spark plugs after that and see if there is any damage. Don't use anti-seize compound on the new spark plugs to make sure you don't overtighten and hurt the Cylinder Head threads. Look at the gap with a wire type Spark Plug gap gage, and set the spark plugs, tightening them to 20 n.m (15 lb ft). At last, put the ignition coil housing in position again.

OEM Chevrolet HHR Spark Plug

Ignition Spark Plug

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Chevrolet HHR Spark Plug Part Number: 12681658
$9.22 MSRP: $16.46
You Save: $7.24 (44%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Spark Plug Assembly-Gasoline Engine Ignition; Spark Plug,Glow
- Replaces: 12617309, 12590701, 12620540
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008-2010 Chevrolet HHR | SS, SS Panel | 4 Cyl 2.0 L GAS
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Chevrolet HHR Spark Plug Part Number: 12681663
$9.22 MSRP: $16.46
You Save: $7.24 (44%)
ADD TO CART
Product Specifications
- Other Name: Spark Plug Assembly-Gasoline Engine Ignition; Spark Plug, Spark Ignition; Spark Plug,Glow
- Replaces: 12598004, 12625058
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2011 Chevrolet HHR | LS, LS Panel, LT, LT Panel | 4 Cyl 2.2 L FLEX, 4 Cyl 2.2 L GAS, 4 Cyl 2.4 L FLEX, 4 Cyl 2.4 L GAS

Chevrolet HHR Spark Plug

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The Spark Plug of Chevrolet HHR vehicles is vital in the process of burning the air/fuel mixture that is in the engine through creating a spark. This component comprises of electrode which is usually made of metal such as steel, a terminal and an insulating material that is made of ceramic which is enclosed by steel shell. Copper core, platinum, iridugs, and double platinum are the types of spark plug used depending on the ignition system and the engine. Spark Plug Heat range, Thread size, number of reaches are designed according to its applications to give it that perfect heat range and durability. Replacing or servicing Spark Plugs is crucial in avoiding such problems as check engine light, rough running, and low fuel economy, which are vital to proper running of any vehicle.

Chevrolet HHR Spark Plug Parts Questions & Experts Answers

Spark Plug
12681663
Q: How to replace spark plugs safely and effectively on Chevrolet HHR?
A:
Always let the engine cool down so you do not risk damaging the Spark Plug threads or Cylinder Head. Remove the ignition coil housing at the start and clean out the Spark Plug holes with compressed air to get rid of any water and contaminants. Remove the spark plugs after that and see if there is any damage. Don't use anti-seize compound on the new spark plugs to make sure you don't overtighten and hurt the Cylinder Head threads. Look at the gap with a wire type Spark Plug gap gage, and set the spark plugs, tightening them to 20 n.m (15 lb ft). At last, put the ignition coil housing in position again.