When your S10 truck begins running rough or skipping during idle, replacing the spark plugs may eliminate the skip. Chevrolet recommends that you change the spark plugs in your truck at least every 30,000 miles. Buy replacement spark plugs from an auto parts retailer. Request pre-gapped plugs to avoid the need to gap the plugs before installation. The S10 is equipped with a four-cylinder or six-cylinder engine. Despite the difference in cylinders, the replacement process is the same.
Things You'll Need
- Spark plug socket
- Dielectric grease
Raise the hood of your S10 and support it with the prop rod. Locate the spark plug wires protruding from the spark plugs. There will be four or six spark plugs, depending on the engine in your truck.
Choose a plug to start with, making note of your starting point and the direction you want to work in. Grab the rubber boot on top of the plug. Twist the boot slightly while you pull up to remove it from the spark plug.
Remove the plug from the S10’s engine with a spark plug socket and ratchet. Insert the new spark plug, threading it by hand to avoid cross threading it. Tighten it with the socket and ratchet.
Insert dielectric grease in the boot of the plug wire. A dime-sized amount of grease will suffice. Push the boot onto the plug, twisting until it clicks in place.
Repeat the process for each of the remaining plugs, one at a time. Removing more than one plug and wire at a time can cause you to confuse the plug wires, which can cause your S10’s engine to run poorly. Close the hood before starting the engine.
- “2003 Chevrolet S10 Factory Service Manual”; General Motors Corporation; 2002
- Photo Credit NA/AbleStock.com/Getty Images
How to Change the Spark Plugs on a 2.2-liter S-10 Pickup
Chevrolet produced two different variations of the 2.2-liter S-10 pickup. One model type used the typical spark plug and wire system that...
How to Replace Spark Plug Wires
Changing spark plug wires are fairly easy and usually requires no tools. Each spark plug wire is connected to a spark plug,...
How to Replace Spark Plugs in a GMC Sierra
The GMC Sierra is available in 1500 and 2500 models. The spark plug replacement process on both of these GMC Sierra models...
How to Change Spark Plugs on a 1997 Chevrolet Blazer
The spark plugs on a 1997 Chevrolet Blazer perform the same function as they do on any engine; they provide the spark...
How to Replace Chevy Cavalier Spark Plug Wires
Changing the spark plugs on your Chevy Cavalier can improve your fuel economy, correct misfires and increase the performance of your engine....
How to Change the Spark Plugs on a 2003 Chevy Impala
A spark plug detonates the mixture of air and gas in the cylinder of an internal combustion engine, causing an explosion that...
How to Change the Spark Plugs on a 2002 Chevy Blazer LS
The spark plugs in the 2002 Chevrolet Blazer LS's 4.3-liter Vortec V-6 engine provide the electrical spark that ignites the compressed fuel/air...
How to Replace Spark Plugs
Using the right tools, almost anyone can deal with this maintenance item. Spark plugs should be changed every 30,000 miles, usually when...