- The car is hard to start. ...
- The engine misfires. ...
- The car gets poor fuel economy. ...
- Rough engine idle. ...
- Your car struggles to accelerate. ...
- The engine is really loud. ...
- Your 'check engine' light is on. ...
- Frequency of replacing spark plugs.
What are the best spark plugs for Hyundai? The original spark plugs installed on Hyundai equipped with the four-cylinder engine are NGK, or Denso iridium coated spark plugs.
Does Honda use Denso?
Denso is the OEM for Honda and produces many parts for other imports as well.
How often should Honda spark plugs be changed?
every 30,000 miles
What is the spark plug gap on a 2004?
Both of the 2004 Grand Prix's 3.8-liter engines -- supercharged and naturally aspirated -- use the same spark plug gap of 0.060 inches. There is a tolerance of 0.002 inches, meaning the gap may be 0.058 to 0.062 inches.
What should I set my spark plug gap to?
For most racing applications, you usually want the plug gap to be between 0.020 and 0.040 of an inch. Most engine builders seem to settle around 0.035 of an inch. Factors such as the type of ignition you run, cylinder heads, fuel and even timing can affect how much gap will work best for you.May 29, 2009