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QR25 2.5L Engine Engine Discussion: 2002+ Sentra SE-R and SpecV

       
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Old Apr 25th, 2004, 12:56 AM   #1 (permalink)
Zac
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Problem/No Problems

I have been noticing that the QR25 SE-R/SE-R Spec V seems to either have multiple problems or run almost flawlessly. I do not know exactly why but I am rather curious to see if this is true. A Nissan mechanic friend of mine said that replacing the header (with one w/o a cat) gets rid of almost any 02 and some 03 problems. That makes some sense minus tranny and ecu problems. My car is an 02 SE-R stock with 13k miles, synthetic conversion to amsoil and perfectly broken in with all recalls completed. I have never had a single problem. I also believe my car was made on a wednesday. If anyone has ever tried a thread like this I would like an update. What year are you drivin? How many, if any, problems have you had including engine, ecu, cat, precat and tranny? How many times have you seen mr dealer and were the problems fixed? Is your car stock or modified? Synthetic or conventional? Any idea what day of the week your car was made? Are your recalls up to date?
Who knows, maybe this will make sense of the quality control problems and if not this thread will have amusing results. Keep on rockin--Zac.
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Old Apr 25th, 2004, 03:20 PM   #2 (permalink)
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02 spec, stock, no problems at 15 months 10K miles...
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Old Apr 25th, 2004, 10:45 PM   #3 (permalink)
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02 spec, had it for 23 months and have 31000 miles. Only problem other than recalls was a trunk leak and a spark plug went bad after 5000 miles, preventing me from starting the vehicle, nothing big.
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Old Apr 26th, 2004, 10:26 AM   #4 (permalink)
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03 with 9K. CAI and Exhaust. Recall up to date, trunk leak to be taken care of shortly. Other then that no factory issues.
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Old Apr 26th, 2004, 11:04 AM   #5 (permalink)
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15K miles, zero problems, even with all my mods. You also have to remember that a lot of young guys who think their Spec is a dragster are having issues... just consider the source.

I also have a 2002 Altima 2.5s and it has had zero problems.
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Old Apr 26th, 2004, 11:11 AM   #6 (permalink)
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Quote:
Originally Posted by Ruben
15K miles, zero problems, even with all my mods. You also have to remember that a lot of young guys who think their Spec is a dragster are having issues... just consider the source.

I also have a 2002 Altima 2.5s and it has had zero problems.
Why is it when people complain about a problem, people automaticly asume it is always the driver? My Spec V has issues yet it has never seen the track and never been raced. It is stock and used to drive to work in. I get sick and tired of people always blaiming the driver. Did you ever stop to think that there might be a bigger problem? For owners who don't have problem, I'm really happy for you, but too many Spec Vs have real problems that are not owner or driver related.
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Old Apr 26th, 2004, 11:14 AM   #7 (permalink)
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Quote:
Originally Posted by caveman
Why is it when people complain about a problem, people automaticly asume it is always the driver? My Spec V has issues yet it has never seen the track and never been raced. It is stock and used to drive to work in. I get sick and tired of people always blaiming the driver. Did you ever stop to think that there might be a bigger problem? For owners who don't have problem, I'm really happy for you, but too many Spec Vs have real problems that are not owner or driver related.
but did you drive it hard? just becuase you don't take it to the track doesn't mean it's not abused in any way. Also how did you break it in?
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Old Apr 26th, 2004, 11:19 AM   #8 (permalink)
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Originally Posted by tekmode
but did you drive it hard? just becuase you don't take it to the track doesn't mean it's not abused in any way. Also how did you break it in?
It was broken in nicly. I drove it at first for about a month and did my best to keep it under 4K RPMs for the first 1k miles. The car has never been abused at all.

Also, what data do you have to say that young people break the cars at the track? Do you have a spreed sheet with problems and how the problems happened, or did you just see a few at the track?

Last edited by caveman : Apr 26th, 2004 at 11:21 AM.
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Old Apr 26th, 2004, 11:22 AM   #9 (permalink)
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I'm not assuming anything... but driving habits can contribute a lot to the wear and tear on an engine. Any problems already inherent in a car are brought out more by hard driving.

I'd imagine that major engine problems with the QR happen at a much higher rate in the SE-R/Spec V, than the Altima because of who drives the car. I'd love to get a Nissan rep to back that, but I'm taking an educated guess.
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Old Apr 26th, 2004, 11:24 AM   #10 (permalink)
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Cool sports car?

I think people are forgetting that this is supposed to be a "sports car". There is no reason I shouldn't be able to floor it in first off the line, shift to 2nd and floor it there if I want to fly off the line and blow away some Cavalier/Sunfire. That should all be done without any tranny grinding or other noises. There was a reason we bought a car with 180hp/180tq.

02 spec v, stock, no major problems at 33km but the tranny is something I could have designed myself in Autodesk ffs
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Old Apr 26th, 2004, 11:30 AM   #11 (permalink)
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sports car????? I love my SE-R but if you want to get into sports car (well actually sports coupe)...think WRX and a little forced induction
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Old Apr 26th, 2004, 11:58 AM   #12 (permalink)
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It is a sporty sedan, not a sports car. The car has VERY impressive numbers for a na 4cyl in it's price range. That was the reason we got the car. However, I'd never thought to put quality problems and Nissan in the same sentance
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Old Apr 26th, 2004, 12:09 PM   #13 (permalink)
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Quote:
Originally Posted by tekmode
but did you drive it hard? just becuase you don't take it to the track doesn't mean it's not abused in any way. Also how did you break it in?
With regard to abuse....technically the manufacturer says stop and go driving is abuse?!?!?! So if you have to deal with traffic on any regular basis you're abusing your car
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Old Apr 26th, 2004, 01:11 PM   #14 (permalink)
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Originally Posted by caveman
It is a sporty sedan, not a sports car. The car has VERY impressive numbers for a na 4cyl in it's price range. That was the reason we got the car. However, I'd never thought to put quality problems and Nissan in the same sentance
I agree. (I've always considered a pure blooded sports car as a 2 door, 2 seater with RWD). It is a highly torquey 4 banger, has impressive numbers for its price and its quality is much lesser than that of earlier model sentras and se-r's. It's not hard to find reliable older sentras on ebay with 200k+ miles that have had fewer problems in the past 10+ years than some newer specs have had in less than a year.
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Old Apr 26th, 2004, 01:14 PM   #15 (permalink)
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Quote:
Originally Posted by NickZac
I have been noticing that the QR25 SE-R/SE-R Spec V seems to either have multiple problems or run almost flawlessly. I do not know exactly why but I am rather curious to see if this is true. A Nissan mechanic friend of mine said that replacing the header (with one w/o a cat) gets rid of almost any 02 and some 03 problems. That makes some sense minus tranny and ecu problems. My car is an 02 SE-R stock with 13k miles, synthetic conversion to amsoil and perfectly broken in with all recalls completed. I have never had a single problem. I also believe my car was made on a wednesday. If anyone has ever tried a thread like this I would like an update. What year are you drivin? How many, if any, problems have you had including engine, ecu, cat, precat and tranny? How many times have you seen mr dealer and were the problems fixed? Is your car stock or modified? Synthetic or conventional? Any idea what day of the week your car was made? Are your recalls up to date?
Who knows, maybe this will make sense of the quality control problems and if not this thread will have amusing results. Keep on rockin--Zac.
ya i baged my car, and by the time the recall came out it had already destroyed my motor. so i got a whole new, 0 km. i learnt my lesson, and have not driven my new engine hard at all. now at 10 000 km, my piston is hitting the sparkplug. Mr dealer tells me it because it was reved to high. but i havent reved high, plus u cant rev too high, theres a rev limiter. anynone got any ideas
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