Question about 2001 Toyota Sienna

1 Answer

Valve covers gasket leak oil

Does anyone have agood ideas of how to replace it?

Posted by on

  • 1 more comment 
  • love2love Nov 06, 2008

    Thank you for the information. Yes you are right. I have to removed the plenum plus air in take and a few hoses. Grounds connector, 2 bolt near the fire wall that hold the intake. I also replaced spark plugs and spark plugs seals. PCV valve and fuel filter. I did not replace the plenum gasket, still in good condition. I got almost 2 miles more per galon, after replaced all that. Thanks guy.

    See ya next time


  • yadayada
    yadayada May 11, 2010 claims they have factory repair & owners manuals, they have nothing of the sort. Some experts may have a small personnel library of manuals. Experts are not employed by, we help free of charge as much as we can with the general automotive knowledge we have learned while working as auto technicians, specific test values, repair procedures and illustrations are unique to each car line, these are not in most cases available to us. Thanks for using FixYa!

  • yadayada
    yadayada May 11, 2010




1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Toyota Master
  • 1,861 Answers

To replace the valve cover gaskets on a Sienna: The front one is easy. The difficult one is the other side, closest to the firewall. You will need to purchase a new intake plenum gasket, when you buy the new valve cover gaskets, because you MUST remove the intake plenum to remove the rear valve cover. You can NOT get the back side valve cover off of the engine without removing the plenum. Trust me.
Hope this helps, and thanks for choosing FixYa.

Posted on Nov 04, 2008

  • Toyota Ed Nov 06, 2008

    Glad to be of service, and 2 more MPG is GREAT!

    The graciousness of a FixYa on my solution for you would be greatly appreciated, the "Thanks for trying" really slams my rating, I thought that I provided you good advice.



1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Oil leak

check the oil filter mounting bracket at the block

Apr 16, 2014 | 2002 Audi A4

1 Answer

Valve cover leaks

Try replacing the valve cover gasket. If the valve cover gasket still leaks oil after replacement try adding standard 1/4 lock washers to the top of the valve cover bolts. I have a 2005 Suzuki Reno and had to replace the valve cover gasket several times. Adding the washers tightened the seal of the gasket and prevented any leaking,

Jan 13, 2014 | 2006 BMW 750Li

1 Answer

Valve body leak 2002 dodge stratus

A vertical cover...I had to ponder that a bit. Still not sure. The valve cover sits flat on top of the cylinder head, with a gasket between them. The cylinder head is where your spark plugs are threaded in. The valve cover rests on top of the cylinder head. It's about 14-18 inches long and about 4 inches high, kind of rounded over so the valves and valve train will fit underneath. A gasket leaking motor oil is very common there, as a lot of oil is directed there and then splashed around to lubricate the valve train. The oil is supposed to drain through engine passages on down to the oil sump- the bottom of engine where oil is kept in the oil pan.

So if you have an oil leak, and it turns out it is the valve cover that is leaking, it's an easy fix-one of the easiest gasket replacements there is.

Mar 10, 2013 | Cars & Trucks

1 Answer

I don'tknow what to do i have an valve cover oil leak i replace the valve cover gasket but still liking oil

I had the same problem on my 97 tracker. had to use liquid silicone gasket in conjunction with new gasket. No leaks now.

Jan 29, 2013 | 1997 Geo Tracker 2 Door

4 Answers

Oil leak on driveway coming from front of engine

Dear Sir,
Here is the oil leaking Problem Identifying Technique

Engine oil leaks from the valve cover gasket are common.

  • The intake manifold plenum gasket may leak and cause increased oil consumption/burning and a spark knock during acceleration; the gasket should be replaced.
  • External oil leaks from valve cover gaskets, intake gaskets (front or rear), and the rear crankshaft (rear main) seal area are common. The rear main seal is an unlikely source. Normally, the bearing cap mating surfaces (as well as the sealing surface between the oil pan and bearing cap) are the source for the leaks.
  • Engine oil leaks at the distributor can be misdiagnosed as leaks from theintake manifold seal, oil pan gasket, or rear crankshaft (rear main) seal. A revised distributor is available if oil is found inside the distributor.
  • If the oil filter casing shows signs of distortion from excessive oil pressure, theoil pump should be replaced.
  • Often misdiagnosed as a leaking oil filter gasket, the oil filter adapter can seep from between the adapter and engine block.
  • Carbon buildup on the top of the piston is common. As the buildup increases with mileage and over time, symptoms may vary from light ticking, to ticking/hammering, to hammering/knocking noises. Fuel injector cleaner often solves the problem.

  • I think it helps to analyse u r Problem

    Nov 02, 2012 | Toyota Cars & Trucks

    1 Answer

    When I put oil in the engine it leaks out of the side of the gasket down on the engine. Car has over 325,000 miles can it be fixed economically, could the head gasket have a crack in it other that this...

    sounds very simple, easy, and inexpensive if I am understanding what you are saying..sounds like your valve cover gasket(s) need to be replaced... the gasket you are seeing the leaking from makes the seak between the valve cover and the "head" of the motor... just remove the bolts that hold the cover on, replace the old gasket with a new one and put the valve cover back on..anyone that can turn a wrench can do this

    Mar 25, 2011 | Toyota Corolla Cars & Trucks

    1 Answer

    I have a oil leak and I think its coming from the back of the manifold. I change the valve cover gaskets but its still leaking what can it be.

    If this is a 5.0L engine the Oil leak is probably this intake gaskets,I would reccomd you replace the PCV filter and gromet at the same time the gaskets are replace and it would be a good idea to replace the PCV valve also.It would be a smart idea to have a professional to replace the Intake Gaskets!!!!!!!

    Jun 28, 2010 | 1990 Ford LTD Crown Victoria

    1 Answer

    Oil leak on the left side of engine

    did you replace gasket at same time some vehicles or gaskets also requre gasket cement did you perhaps over tighten or under tighten covers

    Dec 23, 2009 | 1990 Toyota Pickup

    3 Answers

    Valve cover gasket oil leak into spark plugs

    you will have to put another valve cover gasket on between each cylinder there is a round gasket between valve cover and cylinder head if you buy the valve cover gasket kit they will be in the kit .please rate this answer thanks.

    Feb 01, 2009 | 1994 Honda Accord

    1 Answer

    Oil leak 1994 dodge ram diesel

    What cover?There are two valve covers,maybe this is what you are referring to?Remove the valve covers and replace the old gaskets with new,making sure to NOT leave any of the old gaskets behind.

    Jul 08, 2008 | 1994 Dodge Ram 2500

    Not finding what you are looking for?
    2001 Toyota Sienna Logo

    Related Topics:

    1,347 people viewed this question

    Ask a Question

    Usually answered in minutes!

    Top Toyota Experts


    Level 3 Expert

    77932 Answers

    Colin Stickland
    Colin Stickland

    Level 3 Expert

    22306 Answers

    Jeffrey Turcotte
    Jeffrey Turcotte

    Level 3 Expert

    8830 Answers

    Are you a Toyota Expert? Answer questions, earn points and help others

    Answer questions

    Manuals & User Guides