Spark plugs removal

Good morning,

No special items to disconnect. No need to remove the battery cable as well. Here is a guide to help with diagrams below to show you how on your car.

https://www.2carpros.com/articles/how-to-change-spark-plugs

Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.

What is the spark plug gap for the 2.4L Thanks

Hello the spark plug gap is - Gap 1.0~1.1 mm (0.0394 ~ 0.0433 in.) here is a guide that will help walk you through the service.

https://www.2carpros.com/articles/how-to-change-spark-plugs

Please let us know if you need anything else to get the problem fixed.

I have a 2004 hyundai sonata with 180000 miles on it 5spd 4cyl. the problem it has is that ever time i accelerate i see electricity coming out of the plastic boot of my spark plugs. i replaced the plastic boot but now it sparks even more. What could be wrong? I appreciate any help. THANK YOU :)

Were the spark plugs and wires replaced?

No i haven't. The problem is that it arcs at the top of the plastic booth to the side of the intake.

If you mean the plastic boot of the plug wire or ignition coil, when you have a bad wire, arcing would occur. Bad spark plugs could be the cause as well.

Would you recommend changing the wires and spark plugs? I appreciate your help. :)

Do you think it could be the coils on it?

Usually the wires are the ones to ail first and Have those replaced first and retest.

i have replaced the wires but no difference i also tried other coils but it still keeps arcing and now when i turn my A/C on it starts to shake.

Have you replaced the spark plugs?

no i haven't but i took them out and they seem to be fine. but i will

Electrical problem
2003 Hyundai Sonata 6 cyl Two Wheel Drive Automatic

How much does it cost to replace the spark plugs and wires on my 2003 Hyundai Sonata?

Labor rate per hr. varies with location could range from $70-$130.00 per hr. See quote

ok

Good luck

Where are the spark plugs located on the car. How do you replace them?

Its under the coil and plug wires-see below

How do I replace the spark plugs and the spark plug boots?

You shouldn't need to replace the plug boots unless they are damaged or the wires are bad.

To replace the plugs, start at one end of the engine, pull up on the plug wire boot to remove it from the plug, then use a spark plug socket and extension to remove the plug. Examine the plug for any problems. Now check the gap on the new plug, adjust as required (the plug number and gap will be on the emissions sticker under the hood) install it into the head and tighten it down. If the boot is damaged you simply follow that wire back and remove it, select the same sized wire from the new set and install it in reverse of the way you removed it.

My car was running rough a while ago, took it to AutoZone, they said spark plug number two was the problem, changed it, ran fine.

This problem is now about a year after the first one. I took it to AutoZone to have check engine light looked at and they said they updated their software and no longer have 2002 models on it. So I do not have a code.

So, we changed all spark plugs, number two had oil on it. The car still runs rough and something is wrong. What do you think is wrong and would you have an estimate for the fix? I have an appointment at a repair place near me next week to have them diagnose it. Just wondering if I will have a really big bill.

Thanks for any information you can give.

Good evening.

The oil may be from the valve cover gasket leaking into the tube for the plug. there is a seal there that is common for leaking. the oil shows up on the plug when you remove it as you bring it through the oil on the way out.

As far as the code, there is no reason why they cannot read the code. that was inaccurate information. You can go to another parts store and they can read it for you.

As far as the miss, the first thing I hope the shop will do is a compression test to be sure there is no issue with the cylinder. that is important. if there is an issue, then work will need to be done.

Once the diagnostic is done, get a written estimate before doing anything. then get back to us with the estimate and we can go over it with you to determine the costs in parts and labor are in line.

Roy

Thank you. Your answer is very helpful. I will get back to you. I have an appointment on Monday.

Let me know if you need anything else.

Hi - I took my car to the neighborhood garage and they said cylinder two needs a coil $59.37 plus $80 labor = $139.37
Valve cover gasket $79.19 plus $80 labor = $159.19
shop supplies 8.95
Tax 21.52
Total $329.03
I told them I would let them know tomorrow morning.
Thanks for all your help. I certainly appreciate your knowledge.

Patricia Sunders

Okay, valve cover gasket and labor is good price. the coil part is okay for price.

the issue I have is they are charging you $80.00 to replace a coil that takes five minutes to replace. the other thing is they have to remove it for the valve cover replacement.

tell them they need to remove the labor for the coil since they are removing it anyway for the valve cover gasket replacement.

Roy

Thank you for your help. Patricia Sunders

My question is if there is oil on the spark plug boot in the spark plug tube, but the spark plug is dry and I just replaced the valve cover gasket, would a CEL go off if there is oil in the cylinder? Driveability and smooth operation is very good, wouldn't a random mis-fire cause rough idle and poor drivability as well as a CEL?

If there is enough oil to short out plug then it would set a code if not it won'tif there are O-rings around the spark plug tube then it could get oil into the spark plug boot area if they were missing or didn't seal because of being old.

You are welcome. We are glad to help.

2001 Hyundai Sonata Front Wheel Drive Automatic
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when i took out the spark plugs where 2 of the plugs were there was water or some other fluid in the area what could that be.

Hi sneeta98,

If it is water, then it could have been splashed on, nothing to worry about, just dry it up.

If it is oil, then the valve cover gasket needs some attention.

What would be the easiest and most economical way to change the spark plugs on 2000 hyundai sonata v6? in order to change the three rear plugs can the manifold be raised without disturbing anything else and with out messing up the gasket?
What is the best way to approach this ?

Yes, the easiest way to get to the plugs is by removing the upper intake (called an air surge tank). However, you can NOT reuse the gasket. Also, take pictures of everything before removal so you can see how things go back. Here's the procedure for removal:

AIR INTAKE SURGE TANK
REMOVAL

1. Remove the air intake hose connected to the throttle body.


2. Remove the accelerator and cruise control cables.
3. Remove the engine coolant hose.

4. Remove the P.C.V. hose and brake booster vacuum hoses.
5. Disconnect the vacuum hose connections.
6. Remove the ISA, TIPS and ATS connector.
7. Remove the surge tank stay.
8. Remove the air intake surge tank and surge tank gasket.

i would not refer this as a surge tank, this is more in line with a radiator surge tank , correct reference is a inlet plenum chamber or even just an inlet manifold, i do agree that taking a few pics or making notes as you go along is a big advantage, i still do this with something i have never work on and i have been doing this for 37 odd years.

mark (mhpautos)

could someone please tell me how to remove the plugs and wires for my 1998 hyundai sonata

TO remove the wires, just twist and pull. Using a spark plug socket, unbolt the plug, remove it, and replace the new one after you make sure the gap is correct. Make sure to do this one at a time so you don't mix up the spark plug wires. They must stay in the same order.