Last post on Jul 30, 2013 at 8:15 PM
You are in the Nissan Altima
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Nissan Altima, Engine, Sedan
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#394 of 685 Re: Nissan Altima 2002 Oil Consumption SOLUTION [kcvab]
Apr 26, 2009 (8:37 am)
To all those who have posted latey in this forum, I suggest to anyone who has an Altima 2.5 to be sure to read ALL the messeges in this forum starting from #1 to the very end, they are all important. My first messege in this forum was #75. Please tell anyone you know that has an Altima 2,5 about this forum, and warn them of the possible problems that they may face. It is MUCH better to address this problem, BEFORE you need to buy a new engine.
Please read message #357, or go to or click on the link below:
electricdesign, "Nissan Altima Engine Failures" #357, 31 Jan 2009 11:31 am
Then read all the rest of the messages. It will open your eyes.
E.D. in Sunny Florida
#395 of 685 1995 Altima Cruise Control
Apr 26, 2009 (2:12 pm)
I own a 1995 Nissan Altima ans just about a week ago my cruise control went out. The cruise control light, I noticed, was flickering for a few months and now it doesn't work at all. Could it be my fuse.
#396 of 685 Re: Precat issue advice??? [electricdesign]
Apr 27, 2009 (9:37 am)
I had replaced the head gasket 10k miles/1 year ago. My 2002 altima 2.5 consumes 0.5 quarts per 1k miles since my last oil change (5k miles interval) with Super Tech full synthetic, Florida weather. The pre-cat was new just before I noticed oil consumption. Now runing 10w-30 Synpower and the the engine run smoother but still consumes oil at the same rate and even more at highway speed (60mph). I don't feel any power loss and can speed up to 100+ mph and 5k rpm on neutral.
I want to keep this car for a while since I already dumped $3k for all the repair: 3 New engine mounts, struts, head gaskets, brakes. Will the car run for another 50k miles? What is your suggestion Electricdesign?
#397 of 685 Re: Precat issue advice??? [rondhol]
Apr 27, 2009 (6:09 pm)
Hmmmmmmm........well that puts me on the spot, as I can't predict the future, and these Altimas seem to be unpredictable. Some seem to run with little or no problems and others have a host of problems. I have used both the Mobil One and the Syn Power synthethic oils, both do very well. I never tried Super Tech oil. How many miles on the car, and how many miles on the CAT? The best I can say is to keep up all the normal maintenance, and keep a close eye on the oil. Do you have any oil leaks from the engine? You also need to check to see if your engine oil is getting sucked through the PCV valve. If you have serious concerns, you can test, or have tested, the engine cylinders compressions to determine the general health of the engine. Never let the engine overheat, as that will kill it faster than anything. Your engine may last another 50K if you keep a close eye on it and maintain it well.
#398 of 685 Re: Precat issue advice??? [rondhol]
by MrShift@Edmunds HOST
Apr 28, 2009 (6:34 am)
1 quart per 2,000 miles is nothing to worry about as long as that remains constant. There's hardly a Subaru 2.5L engine on the road, for instance, that doesn't do that.
It's when you start to use oil, and you notice that this consumption steadily declines, and then starts to hover around a quart every 1,000, that you need to be concerned IMO.
#399 of 685 Re: Precat issue advice??? [electricdesign]
Apr 28, 2009 (10:20 am)
Thanks for the input for 75k miles engine (have it since 65k miles). The pre-Cat is installed 7k miles ago, I don't see any trace of oil in the engine except very thin oil film on the valve cover gasket after a long trip. The inner side of PCV valve hose is dry.
I will check my car regularly. Swooshing noise caused by air pocket was fixed after changing the swelling radiator cap. With a long wheel base, the ground clearance of this Altima is too low . Sometimes the bottom of the car touch the large bump when 3 people on the back seat.
I will post the update of the next oil change (Mobil 1 0w-40/ GC 0w-30).
#400 of 685 Re: 2007 Altima transmission replaced [electricdesign]
May 01, 2009 (3:31 pm)
Following-up with post 370. THANKS BE TO GOD. He deserves the glory. I prayed and God answered. With the 2007 altima transmission, they replaced it with NO CHARGE. They did not openly tell me that it was a manufactured defect. However, I agreed to pay half the cost because I needed my car fixed. After speaking with consumer care which denied the claim, I spoke personally with the service manager at the dealership. He contacted the regional manager which only agreed to pay half the cost. Another regional manger was assigned to this dealership and the new regional manager agreed to cover the cost - "NO CHARGE".
I must say the service manager at the dealership willingly worked with me and tried to ensure I get what was right and fair. This was my 3rd nissan. So therefore, to keep me as a customer, they agreed to cover the cost. I thank God for the new regional manager and the service manager. By the way, customer care did not contact me after numerous attempts to request for another review of my case.
I still believe that Nissan need to do a better job of reviewing cases and hearing customers when problems are discovered with their vehicles. They were known for longevity and quality. Both of these areas are no longer a factor in producing a dependable vehicle. Hopefully, if they are reading forums such as this, they may see the errors and become the great manufacturer that they once were years ago.
#401 of 685 Re: Precat issue advice??? [rondhol]
May 20, 2009 (11:06 pm)
New to the forum. I recently purchased a 2003 Nissan Altima 2.5 S fore $8000 down here in Orlando. Car has been running really great but it had problems and after reading this forum I have a lot of the same problems you guys do.
The car burnt through 4 quarts of oil after about 2000 miles (7 weeks) and was puffing blue smoke out the exhaust when I would start the car. I took my car to a local nissan dealership today and found out my car's cat is covered for 80000 miles (my car has 61000)
A mechanic who overheard my conversation with the service manager said asked me "Does you car puff blue smoke when you start?" And when I said yeah he explained that I needed a new engine. All the problems you people have had, but I got luck to still be covered by that 80000 mile warranty and I will not have to pay $6500 in repairs)
I plan to keep the car as I have only had it for two months (and I owe probably 95% of what I paid) Plus I love third and fourth gen Altimas. This is also my first car (Im 19)
Once the new cat is put in I'd like to have it hollowed out so this problem doesnt happen again. If ED stil lposts I'd like to know what he thinks.
Third gen altimas might be crap but I still love them
#402 of 685 Re: Precat issue advice??? [altilove89]
May 21, 2009 (6:42 pm)
QR25DE is not bad engine. Without pre-cat it will last hundred thousands of miles as other Nissan engines. My oil consumption is less than 1 quart per 3k miles with Synpower 10w-30. Small oil consumption is normal if you have short trips <9 miles per trip caused by fuel dilution. My Used Oil Analysis is pretty good with 5k miles even with fuel dilution.
#403 of 685 Re: Precat issue advice??? [rondhol]
May 24, 2009 (7:33 am)
QR25DE is not bad engine. Without pre-cat it will last hundred thousands of miles as other Nissan engines.
even with the pre-cat it will probably last hundreds of thousands of miles. if you compare the number of QR25DE engines sold to the number having problems and your odds are pretty good. on top of that, its mostly limited to the 2002 model (first use of QR25DE) year. once the problem surfaced, it was corrected and a recall issued for the effected vehicles. there was probably some carry over into the 2003 model, but anybody owning a mid to late 2003 and up really has nothing to worry about.
the problem was never with the engine, and not really with the pre-cat either. it was primarily with the fuel mixture, or more precicesly, the programing of the ecu that controlled it.
I'll share a story with you from a couple weeks ago. First off, I work for a company that provides products and service to business. about 65% of our customers are automotive repair shops and dealerships. A couple weeks ago I was in one and talking with the owner. I couldn't help but notice he was working on a 3rd gen altima. I asked him what was wrong with it, and he said he wasn't sure, but that it needed a new engine. It was burning massive amounts of oil. He hadn't finished checking it, but had seen enough to know it couldn't be fixed. Anyhow, I told him about the pre-cat and oil consumption problems, and suggested he look at the pre cat when he removed the engine. To make a long story short, when I was back in his shop a week later I asked him if he had looked at the pre-cat and if it was all broken up.
He said no, it was in pretty good shape. normal for the 80k miles that were on it.
Now I'm not saying the pre-cat problem isn't real, or that it doesn't happen. But there are a lot of things that can damage an engine and cause it to burn oil. Primarily taking care of it. and when your dealing with (as many people here are) used cars, you don't know if it was taken care of, or even how hard it was driven by the original owner. Heck, you don't even know if the recall to correct this issue was performed.