Q: Spark Plug Gap Issue

asked by on

I have bought NGP spark plugs to replace. The factory recommended gap is 0.043 inch or 1.1 mm. however, the stores have gap gauges that have .044 inch or 1.14 mm which is a little bit larger than the recommended gap. What should I do? Online searching didnt find any exact match. Should I keep the gap at .044 or press a little bit?
My car has an automatic transmission.

When the manufacture says .043 then a gap from .042 to .046 is okay. When we gap the spark plugs it is not an exact science and this is why we get as close to the recommended gap as possible. If you gap the plugs to .044 then you will be fine. Do not try and push it in a little since a little is not able to be measured and you may go too far on one or more plugs and not even realize it.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Spark Plug Gap Issue

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Q: Trunk Light on

You should be able to remove fuse number 20 to turn off just the trunk light. If you disconnected the trunk light switch and light still stays on then you may have a short in the instrument cluster since it...

Q: Tire making grinding noise while in motion

Hello. It sounds like you have a bad wheel bearing. Worn wheel bearings usually make a rotational grinding or growling noise that is proportional to vehicle speed. Wheel bearings are very important since they allow the wheels to rotate and...

Q: Clutch pedal sometimes sticks on the floor.

Hi there. The clutch fork could be bent or damaged. Go under the vehicle with the wheels chocked and watch what the clutch fork does as the clutch pedal is pressed down. If the clutch fork moves in but does...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...