Valve cover gasket? - Toyota Nation Forum : Toyota Car and Truck Forums
9th Gen Corolla/1st Gen Matrix (2003-2008) 9th generation Corolla and 1st generation Matrix discussion.

 
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#1 Old 02-09-2013, 05:57 PM
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Valve cover gasket?

I changed my spark plugs on my 07' corolla, with 118k miles on it. it looked like there was a little bit of oil on 2 of the coil packs. not alot. it was about where the gasket is. it smelled like oil, felt more like grease. spark plugs were clean. spark plug wells were clean to.

in one of the spark plug holes, where the valve cover gasket is, looks like a drop of oil. So if anything it may be a very small leak, if even that.

Should i just go ahead and replace the gasket just to be on the safe side.
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#2 Old 02-09-2013, 06:04 PM
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I think it would be worth it for peace of mind. Relatively cheap and easy to replace.

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#3 Old 02-09-2013, 06:25 PM
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I think it would be worth it for peace of mind. Relatively cheap and easy to replace.
ya thats what i was thinking, plus it would be a pain to clean it up if it did start leaking more
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#4 Old 02-10-2013, 07:36 PM
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didn't want to make a new topic for this.

will a vacuum leak cause bad has mileage
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#5 Old 02-10-2013, 09:08 PM
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There won't be a vacuum leak at valve cover gasket, just oil leaks... A vacuum leak at intake manifold gasket would have little effect on fuel efficiency. Original black gasket is likely leaking by now, causing a slight lean condition and erratic idling. Replace with Toyota's revised orange silicone gasket # 17171-22060.
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#6 Old 02-10-2013, 09:11 PM
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There won't be a vacuum leak at valve cover gasket, just oil leaks... A vacuum leak at intake manifold gasket would have little effect on fuel efficiency. Original black gasket is likely leaking by now, causing a slight lean condition and erratic idling. Replace with Toyota's revised orange silicone gasket # 17171-22060.
Ya I am having not very good gas economy. and it's really cold out. the engine is louder than itshould
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#7 Old 02-26-2013, 06:03 PM
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did want to start a new thread for this. But from what i read, i think im right

just got a check engine light today. code is P0171, lean

My guess is replacing the intake manifold gasket will prob fix this
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#8 Old 02-27-2013, 06:31 AM
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Do you need to drain motor oil before replace valve cover gasket?
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#9 Old 02-27-2013, 06:32 AM
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Do you need to drain motor oil before replace valve cover gasket?
No.
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#10 Old 02-27-2013, 06:36 AM
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Thanks Invader. how about spark plugs? do i need need to remove them?
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#11 Old 02-27-2013, 06:41 AM
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Thanks Invader. how about spark plugs? do i need need to remove them?
No... Follow steps 1 to 6, and 15 to 18.

While you're in there, you could also measure your valve clearances.

http://madstyle1972.com/Repair/14/201lbc05/a040001.pdf
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#12 Old 02-27-2013, 06:57 AM
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Besides 08826-00080 seal packing. what equivalent product do you reccommend?
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#13 Old 02-27-2013, 06:59 AM
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