Question about 1993 Toyota Previa

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Oil in spark plug tubes

Getting oil coming out from around the spark plugs but it is not coming out of the cylinders

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  • Anonymous Mar 20, 2014

    oil in two cylinders of the spark plugs



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  • 76 Answers

Valve cover gasket set it has o-ring type gasket around tube built into vavle covers fel-pro makes a good kit

Posted on Oct 25, 2012

Testimonial: "thanks mate. noticed two have it and two dont and the oil is coming out from the two that dont "


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6ya staff

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Posted on Jan 02, 2017


Harvey N Tawatao

  • 3854 Answers

SOURCE: cant find the spark plug location on 2002 4cyl tacoma

Locate the spark plug cover on the engine.On some Toyota Tacoma engines, the cover is across the top of the engine. On others, it is along the side 4 cyl. Remove the cover to reveal the ignition coils and spark plugs wires. The spark plug wires are plugged directly into the engine and the ignition coils are in the tip of the spark plug wire.
Remove the coil and wire from the spark plug. Twist and pull the plug out of the engine. Remove the spark plug from the cylinder well with a socket extender and socket wrench. Turn the wrench to the left to unscrew the spark plug from the engine.

Discard the old spark plug and apply a coat of anti-seize compound to the threads of the new spark plug.

Insert the new spark plug into the socket. Use the socket and extension to screw the spark plug into place.

Return the ignition coils and spark plug wires to the engine and turn it to lock the plug in place. Repeat the entire the process with the remaining spark plugs.

Replace the spark plug cover when all of the spark plugs are replaced.

Good luck and hope this helps and The spark plug tension may range between 11 and 15 foot pounds, depending on the size of the spark plug. The correct tension is indicated on the spark plug's packaging.

Posted on Apr 19, 2009

Richard Finch

  • 397 Answers

SOURCE: oil in the spark plug

You probably have a leaking valve cover gasket causing the leaking oil to collect in the spark plug tubes.
The miss fire is probably caused by the HT in the plug lead shorting through the oil and causing a weak spark.
Clean all the oil out and track down the leak.

Posted on Aug 05, 2008


  • 23 Answers

SOURCE: engine check light read p0171 and p0420, noticed a leak of engine oil on cylinder 2 area of head gasket when checking the sparks plug, is that the cause?

may be oil feed to cylinder head replace gasket

Posted on Apr 20, 2009


  • 1 Answer


The 7MGE has 2 separate valve covers/gaskets with 8 screws holding each cover that will loosen over time.
Find the phillips screws holding on the covers and retighten snugly by hand do not overtighten!
Pull plug boots/wires by the boot not the wire and use paper towels or rags on a long screwdriver etc to absorb the oil from the wells.
Carefully clean plug boots with spray brake cleaner (avoid spraying anything but the boot) and let dry.
Apply 100% silicone grease to inner boot before reinstalling to allow future removal without damage.
If your engine is particularly dirty you may need to remove the covers first and clean all mating surfaces then reinstall.

Posted on Apr 23, 2009

David Melrose

  • 496 Answers

SOURCE: 1992 toyota corolla oil leak around spark plug

You need a new valve cover gasket set. This will come with seals that fit around the spark plug tubes.

Posted on Jan 18, 2011

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I would assume the valve cover gaskets need to be replaced

Check out some You Tube Video on any vehicle, to get an idea
of what I'm referring to

Aug 05, 2014 | 1999 Audi A4

1 Answer

06 kia optima ....engine was shaking...have changed spark plugs, wires and coil pack...engine ran ok till next engine shakes bad...won't get speed over 40. Engine bogs like it is flooded....

you got oil leaked down the plug holes from the valve cover you will need to buy a tube of ultra grey silicon . try this take all plugs out wash them with carb spray wash the spark plug holes out with rag twisted onto screw driver and gas ect ok when dry put a little smear of the ultra grey onto the spark plug threads near the center of the threads all the way around then screw plug into hole let it dry do all the plugs this way it should top the miss if it come back and theres more oil in the spark plug tube hole youl have to take the valve cover off and clean the gasket with gasoline or carb spray dry the gasket off then clean gasket groove on pan and dry it with rag (tee shirt) put a smear of the ultra grey silicon (get at autozone ) all the way around the gasket both sides wash the head where the gasket go's (seals)with gas or carb spray (also nail polish remover ) put valve cover on see that the gasket is in place proper befor tightening the cover bolts

Dec 24, 2017 | Cars & Trucks

1 Answer

Oil around the spark plugs

This is likely your spark plug tube seals. They come with valve cover gaskets because you will need to replace both in a job. You should also probably replace the spark plugs themselves, as the ends are probably fouled.

If you are interested in doing this job yourself, I would suggest going down to your auto parts store of choice and purchasing a repair manual for your car. Haynes is the book of choice, typically. It will show you pictures of the valve cover being removed.

Oct 25, 2012 | 1993 Toyota Previa

2 Answers

Miss fire but no lights on changed the plugs and fuel filter also changed dist cap also checked for a good spark

A lean fuel mixture will not yield poor fuel economy but a misfiring cylinder will.You have already replaced the coils and the plug leads to the cylinders in question so they should not be an issue.Do the codes still indicate a misfire on cyls. 2 & 3? If so have you looked at the plugs? Has the oil leak around the plugs been stopped? Are they oil fouled? Could the pooling oil around the plugs be shorting the spark discharge to ground?or Valve Cover gasket is leaking. That's why you see some motor oil in the sparkplug sleeve (tube). removed the spark plug and My suggestion is to remove the sparkplug in cylinder 2 & 3 or whichever ones that the scanner indicated as "misfiring". Take a look at the sparkplugs and see if there's any oil around it. If you see any traces of oil, that means your gasket is worned out and need to replace.Good Luck in getting your problem fixed. If you need any further help - I'll try to help you the best of my knowledge and skills. You can repost on this

Oct 17, 2011 | 1996 Toyota RAV4

3 Answers

1992 toyota corolla oil leak around spark plug tubes. how is it repaired

You need a new valve cover gasket set. This will come with seals that fit around the spark plug tubes.

Jan 18, 2011 | 1992 Toyota Corolla

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

Oil in 1 1997 chrysler lhs spark plug tube

although I am not familiar with this particular engine my son's Mazda Miata had oil in the plug holes and it only required a new valve cover gasket to fix it.

Oct 18, 2009 | 1997 Chrysler LHS

1 Answer

Oil in number 1 cylinder, fouling out plug

is there oil actually in the cylinder? or is the oil in the tube that the spark plug body lives in? if it's just in the tube, then you only need a valve cover gasket set which comes w/ a round rubber seal for the top of each spark plug tube. if however, the oil is actually in the cylinder, then you either have a faulty piston oil ring or faulty valve seals. the repairs for rings/seals are a giant PIA. let's hope it's just the valve cover gasket set

Sep 29, 2009 | 1997 Saturn SL

1 Answer

New valve cover gaskets,plugs, and wire result in engine light...

if you removed spark plugs with oil around them,oil would have got into cylinders and made new plugs wet and not fire just burnt off oil and started working set a misfire code because of this most likely

Mar 16, 2009 | 2000 Dodge Neon

1 Answer

Spark Plugs

The oil on the spark plug usually comes from the valve cover seal or the spark plug tube. The valve cover seals to the tube and the tube seals to the head. The tube is usually a tight fit in to the head with a little sealant. The tubes can be purchased at the chrysler dealer or possibly at a local parts store. As for the red fluid,it is automatic transmission fliud . It is used in the manual transmission as well as the power steering system. You could have an axle seal leak, transmission shifter seal leak, power steering seal leak, depending on which side of the vehicle is wet.

Mar 11, 2009 | 2003 Dodge Neon

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