Spark plugs removal

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

Let me know if you need anything else.

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

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.

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.

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)

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.