1999 Lexus LS 400 Logo

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Anonymous Posted on Aug 07, 2014

Oil leaking by the ignition coil rubber boot

Oil is leaking around the valve cover down onto the spark plug

5 Related Answers

Anonymous

  • 73 Answers
  • Posted on Sep 12, 2008

SOURCE: Spark plugs

Who ever told you it was the Valve cover gaskets was correct. On the valve cover gasket around where the spark plug goes down though the head there is a seal made onto the valve cover gasket called the spark plug well seals. when replacing the valve cover gasket it will come with these seals and it will take care of your oil leaking into spark plug holes. Hope this has helped and if you need anymore assistance I would love to help.

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Anonymous

  • 7 Answers
  • Posted on Jan 06, 2009

SOURCE: Oil in the spark plugs

Hi, this solution will be useful to you. Your engine is burning oil. That in trurn, your engine has worn valve guide. Piston rings an engine that burns lot oil so it needs to be repaired. You have to do valve job and new set of rings.

Hasan Basha Khaleel.

Anonymous

  • 70 Answers
  • Posted on Apr 25, 2009

SOURCE: Every 3 spark plug dipped in oil.

its your valve cover gasket. they get hot and craked letting oil in.GOOD LOOK!

alicantecoli

Colin Stickland

  • 22516 Answers
  • Posted on Dec 17, 2009

SOURCE: how do i stop oil from leaking around the valve

fit a new gasket

Anonymous

  • 132 Answers
  • Posted on Oct 26, 2010

SOURCE: My 2002 lexus Is300 is

PLS DO A COMPRESION TEST THEN YOU WILL KNOW IF YOU NEED TO REPLACE YOUR PISTONRINGS OR REDUE THE VALVE SEALS AGAIN

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0helpful
1answer

Oil on coil packs and within the spark plug. When taking out the coil pack I can see oil coming from top going down into the spark plug chamber

if the coil goes into the valve covers i would install new value cover gaskets and that should take care of the oil getting on the coil packs or the coil packs are leaking and then you should change them.i looked up your vehicle and noted that the coils are separate from the valve covers,i would inspect the coils and the valve covers and replace as needed, if you find that the coils are leaking you should change it so that you don't have an ignition problem later, autozone has them for your car around 52each or 250-300a set with lifetime warranty
0helpful
1answer

How do I replace the valve cover gasket on a 2002 Saturn L200, 2.2 engine?

Disconnect the camshaft cover grounding strap.Right side of engine.
Remove ignition module, 4 bolts , and disconnect the electrical connection to it. Pull straight up to remove.
Remove 4 spark plugs.
Remove the coolant pipe bracket.
Remove the fuel line bracket.
Remove the 12 bolts holding down the cover, then pry up around the edges GENTLY to remove. You might want to use a rubber mallet at this stage, just don't overdo hitting it, its cast aluminum..
The gasket around the edge and around the spark plug holes don't need sealant, the new design does away with this.
Now would be a good time to check the wear on the Teflon timing chain shield between the camshaft sprockets.
Installation is in reverse order.
Camshaft cover bolts : Tighten to 89 INCH pounds.
Camshaft Ground Strap Bolt : 89 INCH pounds.
Spark Plugs : 15 FOOT pounds.
Ignition coil to camshaft cover bolts : 71 INCH pounds.
Coolant pipe AND Fuel line bracket bolts: 89 INCH pounds.
Good luck.
1helpful
2answers

Have oil leaking into one spark plug hole will valve cover gasket and spark plug seals fix this? this is a 2000 four cyl honda.

Yes. The valve covers have seals that seal around the spark plug tubes where the plug wires go down through the valve cover. A valve cover set should come with the spark plug tube seals. This is a common problem with Honda. I also recommend replacing the plug wires because the rubber boot can get saturated with oil and cause a misfire. Sometimes it may look like the boot is clean when you wipe it off, but the oil is still in the pores and can cause the boot to allow the spark to arc over to the spark plug tube. Most of the time the ceramic on the plugs gets messed up also. This can also cause a misfire. If the plugs have any brown or black discoloration that does not easily wipe off with a rag, then I also recommend replacing the plugs. The discoloration is caused by carbon. Carbon is highly electrically conductive. This will allow the spark to travel down the side of the ceramic to the metal base of the spark plug.
0helpful
1answer

Is there supposed to be oil on the 2,3,4 spark plugs when you change them?

If there is oil in the spark plug tubes than the valve cover is leaking. It should be changed to prevent the rubber boots from bloating and ruining the wires/coils (if its a coil over ignition). If the boots of the wires/coils are soaked they should be replaced as well. This will prevent misfire issues/poor performance in the future.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

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1answer

Where would the pvc value be on a 300 chrysler 2006? also where would the spark plugs be located?

Positive Crankcase Ventilation (PVC) Valve Removal & Installation 5.7L Engine To Remove:
    1.The PCV valve is mounted into the top/right side of the intake manifold.

    2.The PCV valve is sealed to the intake manifold with two O-rings.

    3.Free the PCV valve by rotating counter-clockwise 90 degrees until the locating tabs align with the openings on the manifold.

    4.Remove the PCV valve by pulling straight up from intake manifold and clearing the tabs.

    5.Check the condition of two valve O-rings.
To Install:
  1. Clean the PCV valve opening on the intake manifold.
  2. Inspect the PCV valve O-rings. Replace if suspect.
  3. Apply engine oil to the two O-rings.
  4. Place the PCV valve into intake manifold.
  5. Rotate the valve 90 degrees clockwise for installation.
6.1L Engine To Remove:
  1. The PCV valve is threaded into the right-front corner of the intake manifold.
  2. Remove the rubber hose from the PCV valve.
  3. Unscrew the PCV valve from the intake manifold.
To Install:
  1. Clean the PCV valve opening on the intake manifold.
  2. Check the condition of the PCV valve O-ring. Replace if suspect.
  3. Check the condition of the PCV valve threads and clean if necessary.
  4. Apply engine oil to the O-ring.
  5. Install the PCV valve into intake manifold.
  6. Install the rubber hose to the PCV valve.
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The spark plugs should lead to the coil pack via a spark plug wire but may be hidden by a plastic cover.

The following details the ignition coil changing on the Chrysler 300:

2.7L Engine To Remove:
  1. Disconnect the negative battery cable.
  2. Remove the intake manifold.
  3. Use compressed air to clear the area around the ignition coil and spark plug.
  4. Disconnect the electrical connector from the ignition coil.
  5. Remove the two fasteners securing the ignition coil.
  6. Remove the ignition coil.
To Install:
  1. Install the ignition coil.
  2. Tighten the fasteners to 55 in-lb (6.2 Nm).
  3. Connect the electrical connector to the ignition coil.
  4. Install the intake manifold.
  5. Connect the negative battery cable.
3.5L Engine To Remove:
  1. Disconnect the negative battery cable.
  2. Remove the intake manifold.
  3. Use compressed air to clear the area around the ignition coil and spark plug.
  4. Disconnect the electrical connector from the ignition coil. NOTE: Loosen the ignition coil fasteners by alternating back and forth. Do not lose the spacers under the coil when loosening the fasteners.
  5. Remove the two fasteners securing the ignition coil.
  6. Remove the ignition coil.
To Install:
NOTE: Tighten the ignition coil fasteners by alternating back and forth. Do not lose the spacers under the coil when installing the coil.
  1. Install the ignition coil.
  2. Tighten the fasteners to 60 in-lb (6.7 Nm).
  3. Connect the electrical connector to the ignition coil.
  4. Install the intake manifold.
  5. Connect the negative battery cable.
5.7L Engine (2005) To Remove:
NOTE: Carefully note the position of each spark plug cable before disconnecting them so they can be installed in their original positions to prevent misfire.
NOTE: The throttle body intake air duct or intake air box may need to be removed to gain access to certain ignition coils.
  1. Disconnect the electrical connector from the ignition coil.
  2. Remove the secondary ignition cable from the coil.
  3. Use compressed air to clear the area around the ignition coil.
  4. Remove the two fasteners securing the ignition coil. Bolts are retained to coil.
  5. Remove the ignition coil. Pull with a slight twisting motion to help release the boot seal with the spark plugs.
To Install:
NOTE: Apply a light film of dielectric grease to the inside of the coil boots before installation.
  1. Clean area around spark plug and coil mounting area with compressed air.
  2. Install the ignition coil.
  3. Tighten the fasteners to 105 in-lb (12 Nm).
  4. Connect the electrical connector to the ignition coil.
  5. Connect the secondary ignition cable to the coil.
  6. Install the air duct or air box if removed.
Ignition coil mounting bolts (5.7L & 6.1L engines) chry-02-57-263.gif

5.7L (2006) & 6.1L Engine To Remove:
NOTE: Each ignition coil, mounted on the valve cover, fires two spark plugs at each cylinder.
  1. Disconnect the negative battery cable.
  2. Use compressed air to clear the area around the ignition coil and spark plug.
  3. Disconnect the electrical connector from the ignition coil.
  4. Remove the two fasteners securing the ignition coil.
  5. Remove the ignition coil. Pull with a slight twisting motion to help release the boot seal with the spark plugs.
To Install:
NOTE: Apply a light film of dielectric grease to the inside of the coil boots before installation.
  1. Install the ignition coil.
  2. Tighten the fasteners to 105 in-lb (12 Nm).
  3. Connect the electrical connector to the ignition coil.
  4. Connect the negative battery cable.
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1helpful
2answers

Cause of oil in sparkplug tube?

1.your valve cover's spark plug chamber seal is leaking. Which requires removing the valve covers and replacing the gaskets and seals. 2. Excessive oil spills on to the valve cover and ignition coils when adding oil.

**This excess oil on the plug boots can cause the coils to short and eventually fail.
3helpful
1answer

How do I change the spark plugs on a BMW 523i engine and what is the correct spark gap?

The spark plug change is very straight forward. Basically, you remove the plastic valve cover trim panel, unplug the harness plugs from each of the ignition coils, remove the two nuts securing each coil, pull the coil up. The rubber spark plug connector boot should come up with the coil. You can now remove the spark plugs.

The spark plugs are not gappable. Install them as they come out of the box.

Replace the rubber connector boots at the same time, these wear out and can cause miss-fire problems.

Note that if you find oil in the spark plug wells, the valve cover gaskets must be replaced. Not only does this make a mess, but it deteriorates the boots and also causes miss-fires.

See the DIY article in the Spring 2005 issue of the Bavarian Autosport - Fast Times newsletter (see link below):

http://www.bavauto.com/shop.asp?HC1=0&HTarget=sc_fasttimes.asp&HCY=&HCM=

Contact Bavarian Autosport for the spark plugs and connector boots (and valve cover gaskets) at 800-535-2002, or order online.
4helpful
1answer

Every now and then i smell oil burning when i use my heat but u never see it on tha ground or anywhere

Most likely an oil leak around the ignition coil packs in the valve covers. Remove the center covers on the valve covers and remove the coil packs and see if you have oil in the spark plug wells and on the coil pack boots. If so you will have to replace valve cover gaskets and the orings around the coil pack holes. You can also get the coil pack boots separately if the are oil saturated.
10helpful
2answers

2000 jeep cherokee sport 4.0

I believe that year had distributorless ignition, instead it uses a form of coil on plug ignition system.

If you open the hood, stand at the front of the vehicle. Look to the left side of the engine, around the bottom of the valve cover (The valve cover is where the oil fill cap is. The oil fill cap is on top of the valve cover), at the bottom of the valve cover on the left side you will see a series of humps. Those series of humps is the coil packs, the coil packs are all in one long piece held down by three or four bolts.

Take out those bolts, gently pry up at the ends of the coil pack and it will eventually come out. You'll see on the bottom side the spark plug boots are attached to the coil pack. After you get the ignition coil pack off, you will see the spark plugs under where the coil pack came from, the boots on the coil pack sit directly on the spark plugs.
0helpful
1answer

Kia sportage 2002

you posibly have a misfire due to fauly ignition coils and spark plugs - vehicles are notorious for this maybe a leaking valve cover that leaks oil to spark plugs clean holes before removing spak plugs and check ignition coils ( remove boots) intake has to come of to replaced spark plugs.
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