What is the spark plug gap on a s10?

The typical spark plug gap for most S-10 pickups is 0.060 inches (1.5 mm). This setting applies to the common engines used in the S-10 lineup, though exact figures can vary by year, engine, and plug type. Always verify the specification for your exact model and parts in the manual or GM service documentation.

Across the S-10 generations, buyers could encounter multiple powertrains, including 2.2L and 2.5L inline-four engines, as well as 2.8L and 4.3L V6 variants. While 0.060 inches remains the standard target for these engines with typical copper plugs, some platinum or iridium plugs may come pre-gapped differently, and older or special editions might have slight variations. The following guide lays out the common gap targets and how to verify them.

Common spark plug gap for S-10 engines

Below are the typical gap targets for the main S-10 engines. If you are using a non-standard plug or a modern pre-gapped unit, always cross-check the plug's own spec and the vehicle’s service manual.

• 2.2L inline-4 engine: 0.060 inches (1.5 mm)


• 2.5L inline-4 engine: 0.060 inches (1.5 mm)


• 2.8L V6 engine: 0.060 inches (1.5 mm)


• 4.3L V6 engine: 0.060 inches (1.5 mm)

Most S-10 plug sets—whether copper, platinum, or iridium—are designed to arrive near 0.060 inches. Always review the exact part number and its recommended gap, as some premium plugs may differ or require confirmation against the vehicle’s service data.

How to check and set the spark plug gap on an S-10

Before you begin, gather the necessary tools and locate the correct plugs for your engine. The following steps provide a general method for checking and adjusting the gap to the standard 0.060 inches (1.5 mm).

1. Turn off the engine, remove the spark plug wires or coil packs, and extract the plugs with a spark plug socket and extension.


2. Inspect the plug condition and measure the gap with a feeler gauge set to 0.060 inches (1.5 mm).


3. If the gap is not within spec, carefully adjust the ground electrode with a suitable tool to narrow or widen the gap. Note: many modern platinum/iridium plugs are pre-gapped and should not be adjusted; if adjustment is required beyond capability, replace with a new plug that matches the engine's specification.


4. Reinstall the plugs and tighten to the manufacturer’s recommended torque. If you don’t have the exact torque spec, consult the service manual or a reliable repair guide for your S-10 engine.


5. Reconnect ignition components and start the engine to confirm proper operation. If misfiring occurs, re-check the gap, seating, and torque, and inspect for fouling or damaged threads.

Handle gaps and plugs with care; improper adjustment can damage the plug, the insulator, or the engine. When in doubt, replacing with a correctly gapped plug from the same part family is a safe alternative.

Summary

For most Chevrolet S-10 engines, the standard spark plug gap is 0.060 inches (1.5 mm). Always confirm the exact specification for your year, engine, and plug type via the owner’s manual or GM service documentation, and follow proper procedures when checking or adjusting gaps to maintain engine performance and reliability.

What is the correct spark plug gap for?

The gap setting is different for each vehicle but most are somewhere between 0.028" and . 060". Consult the owner's manual or Champion ® catalog to find the recommended setting for the vehicle you're working on.

What is the spark plug gap on a 1996 Chevy s10?

The correct spark plug gap for the 1996 S-10 4.3L Vortec V6 is typically 0.035 inches. Incorrect gaps can cause misfires, poor fuel economy, and rough idle.

Can I use 9 16 instead of 14mm for spark plugs?

For the majority of plugs, you need a 5/8” or 16mm socket. Some Fords use 9/16″ plugs, some newer European and Asian vehicles use 14mm plugs, and there are a few applications that use 7/8″, 13/16″, ¾” or 18mm plugs. All spark plugs are 6 sided, except some BMW engines.

What is the spark plug gap on a 4.3 Chevy?

The recommended spark plug gap for a Chevy 4.3L engine is typically 0.060 inches (1.52 mm1.52 mm1.52 mm) for earlier models, but the specification can vary, with some later versions requiring a smaller gap such as 0.035 inches (0.89 mm0.89 mm0.89 mm) or 0.040 inches (1.02 mm1.02 mm1.02 mm). Always verify the correct gap for your specific vehicle year and model to ensure optimal performance and avoid misfires. 
This video demonstrates how to check the spark plug gap on a Chevy 4.3L V6 Vortec engine: 1mSecond Hand SpeedYouTube · Apr 7, 2023
Important considerations

• Check your specific vehicle's manual: It is crucial to consult your owner's manual or a service manual for the precise gap specification for your year and model.
• Adjust for different years: While some earlier 4.3L engines with Vortec heads used a 0.060" gap, later models were updated and may require a smaller gap such as 0.040". 
• Use a feeler gauge: Use a proper feeler gauge to check and set the gap before installation to ensure it's set correctly. 
• Do not gap certain plugs: Do not attempt to gap modern iridium or platinum spark plugs, as this can damage them. If the gap is incorrect out of the box, replace the plugs with a new set that has the correct gap. 

You can watch this video to learn how to check the spark plug gap on a Chevrolet 4.3L V6 engine: 59sThe Enthusiast MechanicYouTube · Mar 18, 2022