High Oil Consumption - Page 5 - Nissan Forum

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#61 Old Oct 26th, 2012, 12:51 PM
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Guys,
You really need to do a compression test or leak down test so you can rule out major damage. post your results.

You can remove the valve springs and seals one by one using an adapter to fill the cylinder with compressed Air to hold the valve in place, so you don't have to remove the heads. You use a special valve spring compressor to do this. I have done this but not on the VQ engine.

If you cant or don't want to do this, remove the cylinder heads and take them into a machine shop.

2003 Pathfinder from 2004 SE 4WD
1997 SER 5sp Manual from new Rear Ended 2009 !!
Gone to the Knacker yard...
New ride 3.0 manual RWD not a Nissan !!!
1997 Sentra GXE from new .... Sold 2008
2001 Sunny N16 RHD from new (N16 Nissan Bluebird Sylphy) Sold
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#62 Old Oct 28th, 2012, 10:11 PM
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high oil consumption update

Thanks to everyone for the help. My mileage has increased to 18 mpg which is more acceptable. Second tank of gas, again used 2 full quarts of oil. Taking it to ABC Nissan in Phoenix tomorrow to have them figure it out. I just don't have the know how or the tools to take on this big of a project right now. If it turns out to be more than $2500, I will buy a used car and tear this one down and fix it myself; that way I will have plenty of time and won't be pressed for transportation. Will let you know how this turns out.
#63 Old Oct 29th, 2012, 07:35 AM
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good Luck !!!

2003 Pathfinder from 2004 SE 4WD
1997 SER 5sp Manual from new Rear Ended 2009 !!
Gone to the Knacker yard...
New ride 3.0 manual RWD not a Nissan !!!
1997 Sentra GXE from new .... Sold 2008
2001 Sunny N16 RHD from new (N16 Nissan Bluebird Sylphy) Sold
#64 Old Oct 30th, 2012, 09:14 PM
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high oil consumption update

okay. Got the call from the Nissan dealer today. He said my engine is shot and needs to be replaced to the tune of $13000. for a long block and $9600 for a short block; two cylinders have bad rings and are pushing oil out. They couldn't tell me which two cylinders and couldn't say for sure if a compression test was done.Give me a break! I guess it's been too long since I've had a real shop work on my cars because I thought they still replaced rings and valves etc..but apparently because too many other issues arose after doing a rebuild, they just go with the new engine. I can somewhat understand this, but have located a guy willing to do a leakdown test and attempt to find the real issue and see if he can fix it. It's still drives fine, but losing a quart/100 miles now. If he can't handle it, I am prepared to take 2-3 months after work to fix it myself. It's just R&R of parts for gosh sakes. pardon my venting; again thanks for your advice. Will let you all know how the new testing comes out; while I shop for another car.
#65 Old Oct 30th, 2012, 09:34 PM
jdg
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Run...run fastly (is that a word?) from that place and pretend they don't exist and never forget that.
Jeezus...$13K? What the hell are they trying to pull? They're just going to replace the whole thing to cover their collective asses and that's about it.
A quicky look on the Google's shows used engines complete for around $3K-$4K and I'd bet you could easily find a wrecked Pathy wherever you're at with a decent motor for wayyy less than $13K, forget the rebuild/refresh and just swap it out.
Past that, a gasket set for a few hundred, set of rings, bearings, etc, for another few hundred each, some machine work, and so on and so on. I can't see reworking that engine, assuming you do as much of the work yourself as you can (obviously can't do machine work at the house...or can you? ), can't possibly run more than a few thousand $$$, maybe $5K at most (??? Pathfinders aren't my strong suit so I might be way out in the weeds) to get the engine back to practically factory fresh.
amazing...

99% of the questions that are "STRANGE" have a dirt simple answer...usually answered by a dirt simple search.

NISSAN GOOGLE

Is it just me, or does the majority overlook the obvious?

Somebody ate a whole bag of dumbass for breakfast.

Why do people continue to run a vehicle when a warning light comes on or starts flashing? Isn't that a clue that something is wrong and you probably should NOT drive it?
Is this whole car driving thing really freekin' brain surgery?

Here's something new for the crowd/clowns...
"A little bit of Google goes a long way!"

Ever notice the one post wonders for info on turbo'ing a GA16 are never heard from again after they figure out the cost???

And if you can read this, you don't need glasses! :)

And yes, I am diggin' it...
#66 Old Oct 31st, 2012, 12:20 PM
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Ive worked on some screwed up engines in the past and recommend you get the leak down down and maybe a compression test for old timers like me.
I assume the Nissan garage did not do and real diagnosis !!!

A set of rings on the pistons and replace any damaged pistons, bunny turn hone the cylinders, and away you go. plastigauge the bearings, replace if necessary. You do not even need to replace the pistons in sets anymore.

2003 Pathfinder from 2004 SE 4WD
1997 SER 5sp Manual from new Rear Ended 2009 !!
Gone to the Knacker yard...
New ride 3.0 manual RWD not a Nissan !!!
1997 Sentra GXE from new .... Sold 2008
2001 Sunny N16 RHD from new (N16 Nissan Bluebird Sylphy) Sold
#67 Old Oct 31st, 2012, 06:45 PM
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high oil consumption update

okay: Called Nissan dealer back to ask why they didn't do the tests that I asked for. The tech said that the compression of #2@5 is 155/120. and the other cylinders are 125-130; the compression should be 140-150.Along with the metal from the catalytic converter, causing an off color oil is the reason they said the engine is not worth rebuilding; I found and am negotiating for a used pathy engine with 31k miles and found a young budding mechanic who has the equipment to swap it out. Seems like the best way to go at this point. Car is worth about 7k and I will end up with maybe 4k into it, but hopefully it should last me another 4-5 years which is a hell of a lot cheaper than spending 15-20k for another used one. Thanks IanH and Jdg for your insights...everyone on this forum has been extremely helpful. I sincerely appreciate the help. Blessings.
#68 Old Nov 1st, 2012, 02:52 AM
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Good choice revlee. When you get your old engine out of the car it might be worth tearing it down to see exactly what the problem was. If you do that, let us know what you find.

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#69 Old Nov 5th, 2012, 09:06 AM
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So they are saying metal from the CAT got into the Engine and Oil ?

I didn't know that the VQ engine had the CAT disintegrating getting into the cylinders problem ????

2003 Pathfinder from 2004 SE 4WD
1997 SER 5sp Manual from new Rear Ended 2009 !!
Gone to the Knacker yard...
New ride 3.0 manual RWD not a Nissan !!!
1997 Sentra GXE from new .... Sold 2008
2001 Sunny N16 RHD from new (N16 Nissan Bluebird Sylphy) Sold
#70 Old Nov 5th, 2012, 09:07 AM
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Quote:
Originally Posted by pathological View Post
Good choice revlee. When you get your old engine out of the car it might be worth tearing it down to see exactly what the problem was. If you do that, let us know what you find.
yes please let us know, inquiring minds u-know...

2003 Pathfinder from 2004 SE 4WD
1997 SER 5sp Manual from new Rear Ended 2009 !!
Gone to the Knacker yard...
New ride 3.0 manual RWD not a Nissan !!!
1997 Sentra GXE from new .... Sold 2008
2001 Sunny N16 RHD from new (N16 Nissan Bluebird Sylphy) Sold
#71 Old Nov 7th, 2012, 07:50 PM
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high oil consumption update

this will be short today because I left my laptop at work and I'm doing this on my android phone. but I am so frustrated, excited, mad, happy, all the same time that I just had to write something to you guys and will provide further update in the next couple of days. before spending 3000 dollars for a used engines I decided to take your advice and get a leak down test and compression test. the results were not at all with the dealer said. all cylinders register between 180 to 189 compression.leakdown test shows from 20 percent for a low to 30 percent for high. I feel like asking the dealership for a brand new car in compensation for the lies misrepresentation they gave me... my mechanic is checking a few other things I said today and tomorrow and again I will keep you advised. Thanks again for all your help
#72 Old Nov 12th, 2012, 07:02 PM
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high oil consumption update

Well, I have narrowed the burning oil down to valve seals. Does anyone know if I can do this without removing the timing chain cover, chain, etc. etc. It looks like I don't have to remove the head and will probably do one bank at a time, unless I have to remove the front of the engine. The manual I have says I have to remove it, but it doesn't seem logical to me. Appreciate any information you might have to share.

Sent a letter for a refund of my $262 for the tests that were never performed on my car.
will let you all know how that works out.
Thanks again to IanH and Pathological for their sound wisdom to do the compression and leak down tests.
#73 Old Nov 13th, 2012, 03:35 AM
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you may have to remove the cams to get access from above so the timing chain / sprockets will have to come off to get them out.
Please bear in mind I have not done this on the VQ.

2003 Pathfinder from 2004 SE 4WD
1997 SER 5sp Manual from new Rear Ended 2009 !!
Gone to the Knacker yard...
New ride 3.0 manual RWD not a Nissan !!!
1997 Sentra GXE from new .... Sold 2008
2001 Sunny N16 RHD from new (N16 Nissan Bluebird Sylphy) Sold
#74 Old Nov 13th, 2012, 03:01 PM
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What IanH said. You must remove the cams to get to the valve seals. To remove the cams you have to remove the timing chain which means you have to remove the front cover. How did you decide it was valve seals?

1965 Mustang GT clone convertible
1973 Mustang Mach 1 (original owner)
2008 Mustang GT convertible
2000 Toyota Tacoma
2002 Pathfinder 3.5 LE
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#75 Old Nov 13th, 2012, 08:25 PM
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high oil consumption update

Hi Path.. and IanH; my posting from Nov. 7th gives the details. Nissan customer affairs said to take it to a dealer, which I did. The dealer gave me some bogus data on compression and leak down test, (lies and deception) which I confirmed with an independent mechanic tests. compression and leakdown are great; stopped in a machine shop, who I trust, and they recommended the valve guides and seals be replaced rather than just the seals. If I have to take the heads off I might as well do it right. It is still running very well, but has smoke at start up and it lightens up while driving, but it is still visible and still 2 quarts per tank. Now the debate is, whether I can trade it in for a fair price and save myself the work, go with a rebuilt engine, or should I do the work myself and forget the car payments. Although I am convinced that the valve seals will do the job, I can't find any mechanic willing to do the job. They treat the engine like a "throw away" part so I will have to do it myself. Machine shop will rebuild both heads for $500, so doing it myself really seems to be the cheapest way to go. Sent my letter to Nissan consumer affairs asking for a refund of the $260 for the work that wasn't really done. Next onto the BBB and visa dispute payment process. Again, taking this process slow to see if any other doors open or close. If I Keep on praying and moving it will all come together as it should. Traded in the wife's Murano for a Honda CRV yesterday.Again, thanks for all the help.
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