Q: What are the right plugs and how do i know what I can tweak on the type of plug I use.

asked by on

Let me start off by telling what I have going on. So my cooling fan wasnt working, over heated engine. Fixed that but I need new spark plugs, my cats are clogged so I'm about to cut the exhaust all out and run straight pipe from the manifold. I'm going to try and use the spark plug no foulers to pull the o2 sensor out of the line of exhaust, if that doesn't work I'm going to try an electronic mil eliminator, lastly if that doesn't work I'm buying a hand held and remapping. But I want to tune it up real nice before I do that. I'm a delivery driver and really beat on it, I'm also putting in high performance coil packs. The manufacturer recommends motorcraft agsf-32n for the plug. What can you recommend. I started to look into different types of plug configurations and mororcraft model number identification charts. I'm a little lost in the forest. Anything you can explain or any advise would be appreciated. Thanks

My car has 180000 miles.
My car has an automatic transmission.

Try using the factory plugs first and use them until you get all the modifications done. Then keep checking the plugs every month to see how they are burning to see if you need a hotter plug or a colder plug if there is one made that fits this engine.

You should do a search on the spark plug number and their meanings to know what plug to look for. As far as I know Motorcraft plugs AGSF-32n is a pretty hot plug and should work for you for now. If you need help sourcing, replacing, or installing the spark plugs, a certified technician from YourMechanic can come to your home or office to perform this task.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. What are the right plugs and how do i know what I can tweak on the type of plug I use.

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


Hi there. Typically a damaged motor mount will cause extreme vibration and difficulty shifting; so it is very likely that this is the source of your Cadillac's issues. Motor mounts can break due to multiple reasons, age, aggressive driving or...

Q: Excessive oil consumption, oil in spark plug holes, normal compression

The oil getting into the spark plug holes is from the valve cover and spark plug tube seals. Replace both of these and clean out spark plug holes of oil. This will help with the misfires and coils shorting out....

Q: Freeze plug popped out. Anti-freeze mixed with oil what should I do. Scared not sure if I should change the head gasket

Hi there. It really depends on how quickly you noticed the freeze plug issue and how long the anti-freeze and oil have been mixed. If it's been more than a few days since the initial issue occurred, it's possible that...

Related articles

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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.