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oil consumption issue 2000 corolla


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#1 lortech

 
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Posted 01 July 2010 - 04:47 PM

I think after goggling this issue, seems that the issue may rest in its engine design. I suspect the oil rings are sticking and its consuming more oil. There is some oil coming out of what I think is the crank seal and timing chain? cover. The pulleys are flinging the oil to the firewall. Its not particularly fresh and not dripping onto the ground just yet.

Now as far as the tail pipe is concerned. inside lip of pipe end is covered with black soot. Black powdery soot is usually oil consumption or rich fuel mixture? I did not get a chance to do a compression check on the cylinders. Seems from what I read, that these 4 cylinder engines normally consume 1 quart of oil every 3000 miles.

your thoughts?

#2 Karrpilot

 
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Posted 05 July 2010 - 09:10 AM

1 quart of oil in 3K is acceptable. I think Ford even stated that 1 quart in 800 miles was acceptable. Depending on the application and useage.

Now for the oil being slung out, that is another issue. Possible front crank seal / oil pan gasket? You would need to put in leak tracer dye and find the source.

I made the mistake of replacing the oil pan gasket on my Escort just by where i thought the leak was coming from. Didn't fix it. It did indeed turn out to be the front crank seal. Doing the same thing you are describing.

However for the black soot in the tail pipe, maybe have someone drive behind you. And see what if any color of smoke emits from the exhaust. If, upon start up, you see blue smoke that goes away as the engine warms up, that is a classic sign of valve stem seals going bad.

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#3 lortech

 
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Posted 06 July 2010 - 05:21 PM

I think it was much higher. BTW, cleaned the engine at a car wash looked at it two days latter and almost no oil coming out. Told the customer that is probably just starting.

She does have some black smoke coming out of tail pipe. Did two complete engine flushes on it and the engine runs much smoother, quieter so hopefully, her rings are not unstuck.










1 quart of oil in 3K is acceptable. I think Ford even stated that 1 quart in 800 miles was acceptable. Depending on the application and useage.

Now for the oil being slung out, that is another issue. Possible front crank seal / oil pan gasket? You would need to put in leak tracer dye and find the source.

I made the mistake of replacing the oil pan gasket on my Escort just by where i thought the leak was coming from. Didn't fix it. It did indeed turn out to be the front crank seal. Doing the same thing you are describing.

However for the black soot in the tail pipe, maybe have someone drive behind you. And see what if any color of smoke emits from the exhaust. If, upon start up, you see blue smoke that goes away as the engine warms up, that is a classic sign of valve stem seals going bad.



#4 lortech

 
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Posted 11 December 2010 - 07:02 PM

About threee weeks ago, customer told me the car runs much better and passed emissions when previously it did not. I suspect with the burning oil, the oil vapors were mixing with the fuel vapors and creating a incomplete combustion with High hydrocarbons.

#5 Karrpilot

 
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Posted 13 December 2010 - 06:29 PM

I have never seen an engine flush fix anything. When ever i had a gummed up / sludged up engine, i would dump a quart of ATF into the engine and let it idle for 1/2 hour. Then i would change the oil and filter, put another 1000 miles on it, and repeat the process again. And continue to do this every 1000 miles until i had clear, clean oil running out the oil pan.

I was always afraid of some harsh engine flush chemicals doing some harm to the internal engine parts. Or worse, disloging a good sized hunk of goo. And having that make it's way into the oil pump and or relief valve.

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