Question about 2003 Mitsubishi Lancer

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Spark plug boot has oil on it

I removed a spark plug wire and at the top were it seals shut to the valve cover there was oil on the plug wire. i know this isnt normal .how do i fix

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  • lancerb113 Mar 06, 2009

    thank you !!!

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You need to do a new valve cover gasket that comes with the tube seals.This is common.

Posted on Mar 06, 2009

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1 Answer

Does anyone know the spark plug wire order on a d15b7


Oil is leaking into your spark plug holes from the valve chamber. It's not a good idea to leave the oil in the spark plug holes, as it can pool high enough to damage the rubber boots of your spark plug wires, will make the plug hole really messy, and it may eventually become a fire hazard. Below is how to fix it.

Honda's preferred spark plug location means that the plugs (and their wires) must pass through deep recesses in the top of the valve covers to get to the combustion chamber. This gives better plug placement in the combustion chamber, and more zoom for your Honda. It creates a small problem though: Under the valve cover, all around the spark plug recesses, is an open space that is constantly being showered with oil, and that oil will get into the spark plug recesses unless something is done to keep it out. Honda does this by sealing any joins between parts with little rubber donuts (AKA "grommets").

The rubber donuts eventually get old and stop sealing, letting oil seep into the spark plug holes and puddle there. The cure is replacement of all four (or six), along with the valve cover gasket itself (themselves) at the same time. It's an easy project for anyone who's done more than just oil changes.

However, there's a fly in the ointment here: Certain Honda engines, specifically the 4-valve-per-cylinder, single-overhead-cam ones (such as the D15B that's used in many Civics), have an additional rubber seal under the one I just mentioned! This one also gets old and starts leaking, but these are a LOT harder to replace! Not a job for a beginner!

NOTE: The rubber parts under discussion here are not actually red and orange, they're black, I just used colors to make it clearer which was what.

Sep 28, 2016 | Cars & Trucks

1 Answer

Am changing plugs on 2006 aveo. Found oil in the


Yeah, kind of. The valve cover gasket needs replaced. The seals around the plugs go first because of heat. If the oil mark was near the top of the plug boot, replace the valve cover gaskets/seal. If it was near the bottom, slap in the plugs and wires.

Sep 27, 2014 | 2006 Chevrolet Aveo

2 Answers

My '98 Catera needs the #1 cyl ignition coil replaced,plus the valve cover gaskets.Is all of this readily accessible when the air cleaner is removed?Or,more importantly,how many components must be...


Not easy but doable. I would mark anything you aren't familiar with to get it back together right. Please let me know if you have any questions, and thanks for using FixYa.


IGNITION COIL REMOVAL & INSTALLATION
3.0L Engine
  1. Remove the wiper arms
  2. Remove the left and right side air inlet grilles
  3. Remove the wiper motor.
  4. Detach the power brake booster vacuum connection from the intake plenum.
  5. Disconnect the spark plug wiring harness from the ignition coil.
  6. Detach the electrical connection from the ignition coil.
  7. Remove the bolts from the ignition coil, and remove the coil.

To install:
  1. Installation is the reversal of the removal procedure.
  2. Tighten the coil bolts to 71 inch lbs. 8 (Nm).
  3. Tighten the power brake booster vacuum connection until snug.

valve cover removal & installation3.0L Engine
RIGHT
  1. Disconnect the negative battery cable.
  2. Remove the intake plenum and the intake manifold.
  3. Remove the spark plug boots from the spark plugs, and then the wires from the routing retainers. Make sure they are tagged for proper installation.
  4. Remove the rocker arm cover-to-cylinder screws, the cover, and the gasket/seals. Discard the seals.


NOTE Ensure all eight sealing O-rings are accounted for. They may stick to the camshaft bearing caps or fall into the oil return journals in the cylinder head.
jturcotte_1756.gif

Fig. The location of the valve cover O-rings is shown here


jturcotte_1757.gif

Fig. The valve cover sealant application points
To install:

  1. Install new valve cover seals. Lightly coat the new seals, including O-rings, with engine oil prior to installation. The oil application will assist in holding the O-ring seals to the valve cover.
  2. Apply a thin coat of silicone sealer at the front and back of the seals.
  3. Install the valve cover to the cylinder head, and tighten the bolts to 71 inch lbs. (8 Nm).
  4. Route the spark plug wires into the retainers, and install the plug boots to the spark plugs.
  5. Replace the intake manifold and the intake plenum.
  6. Connect the negative battery cable.
LEFT
  1. Disconnect the negative battery cable.
  2. Remove the intake plenum and the intake manifold.
  3. Remove the spark plug boots from the spark plugs, and then the wires from the routing retainers. Make sure they are tagged for proper installation.
  4. Remove the oil filler spout.
    1. Unlock the tab.
    2. Twist counterclockwise.

  5. Remove the rocker arm cover-to-cylinder screws, the cover, and the gasket/seals. Discard the seals.

NOTE Ensure all eight sealing O-rings are accounted for. They may stick to the camshaft bearing caps or fall into the oil return journals in the cylinder head.
To install:
  1. Install new valve cover seals. Lightly coat the new seals, including O-rings, with engine oil prior to installation. The oil application will assist in holding the O-ring seals to the valve cover.
  2. Apply a thin coat of silicone sealer at the front and back of the seals.
  3. Install the valve cover to the cylinder head, and tighten the bolts to 71 inch lbs. (8 Nm).
  4. Install the oil filler spout.
    1. Insert the spout and twist clockwise.
    2. Ensure the locking tab seats on the valve cover bolt head.

  5. Route the spark plug wires into the retainers, and install the plug boots to the spark plugs.
  6. Replace the intake manifold and the intake plenum.
  7. Connect the negative battery cable.

INTAKE MANIFOLD REMOVAL & INSTALLATION

3.0L Engine
This vehicle uses a sequential multiport fuel injected engine. Fuel injector connectors must be positioned onto their appropriate fuel injector or engine performance and exhaust emissions may be seriously affected. Fuel injector connectors are numbered to match their cylinders.
  1. Remove the intake plenum.
  2. Properly relieve the fuel system pressure.
  3. Remove the fuel supply and fuel return hose from the fuel rail.
  4. Fuel injector electrical harness connector.
  5. Remove the intake manifold bolts and the intake manifold.


NOTE Mask off the ports to the intake manifold spacer. If foreign objects enter the engine, severe damage may result.
Clean the intake manifold sealing surfaces with a non-abrasive tool or solvent.
Do not damage machined aluminum surfaces or improper sealing may occur.


jturcotte_1758.gif

Fig. Location of the guide pins for the intake plenum-3.0L engine


jturcotte_1759.gif

Fig. Intake plenum-to-intake manifold mounting


jturcotte_1760.gif

Fig. The intake manifold bolt locations
To install:

  1. Remove the masking from the intake ports.
  2. Install the intake manifold, and tighten the intake bolts to 15 ft. lbs. (20 Nm), rotating the tightening sequence.
  3. Reconnect the fuel injector electrical harness connector.
  4. Couple the fuel supply and fuel return hose,. Tighten the connection to 11 ft. lbs. (15 Nm).


NOTE Counterhold the connections to prevent damage to the fuel rail.
  1. Install the intake plenum.
  2. Connect the negative battery cable.

May 24, 2011 | 1998 Cadillac Catera

2 Answers

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.

Jan 15, 2011 | 2000 Honda Accord

1 Answer

Oil in the sparkplug hole


O-ring seal for spark plug are leaking. Located under valve cover.
To replace them,
1.unplug spark plug wire from spark plug.
2.remove valve on top of engine, by loosing the 5(10mm) bolts and disconnecting air hose.
you might have to use a pry bar to pry valve cover off.
3. flip cover upside down and you'll see that there's one o-ring per spark plug hole. remove them and install new one. You might want to replace valve cover gasket too.

Dec 17, 2010 | 1996 Honda Accord

2 Answers

I pulled a spark plug to change plugs and the spark plug wire boot was all wet from oil. The other three plugs were fine. The rest of the engine looked fine apart from the regular dirty engine look. No oil...


yes, the valve cover gasket is the only thing that can cause this, and yes, you have to remove the cover and put a new gasket in to fix. Please let me know if you have more questions.

Sep 09, 2010 | 1996 Saturn SL

2 Answers

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.

Apr 20, 2010 | 2001 Lincoln LS

1 Answer

My 2002 dodge neon has check engine light with coded p0302. I know to try replacing the plug/wires, are there any other common causes for this error code that I should check out?


Hi! When replacing the plugs and wires on this model be sure there is no oil in spark plug wells. You will notice the oil on the plug wire boot when removing it. If there is any oil on any of the boots the valve cover gasket and spark plug tube seals will need to be replaced or the misfire code you mentioned will return. Hope this information helps!

Sep 12, 2009 | 2002 Dodge Neon

1 Answer

Oil above the saprk [lug but below the spark plug boot


How many miles? It has nothing to do with the piston rings. It means that either the seals at the top of the spark plug holes under the valve cover or the seals at the bottom of the plug holes (where the rocker shaft/cam shaft supports mount to the block).are bad. The ones at the top are relatively easy to replace, a valve cover gasket kit should include the large cover seal and four o-rings. The lowers seals are a bit more involved and require the rocker shaft support to be removed. My 1990 Accord has this problem as well. I occasionally remove the plugs, clean the boots, plugs and the holes, then reinstall everything. If it reaches 300,000 miles, I may do it all when I change the timing belt.

Feb 01, 2009 | 1991 Honda Accord

3 Answers

Oil in the spark plug area


Hi! This is not normal.What is happening,two of your cylinders are oiling.This is sign that your rings or your valve seals are bad.

Jan 16, 2009 | 1992 Honda Accord

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