Repair progress
10-24-2007, 02:28 PM
#41
After sitting at my desk at work all day and thinking about the car and what could've gone wrong, I realized that I cant recall re-installing the O2 sensor after bolting the y-pipe back on for the 2nd time. If that is indeed the case, then it would account for both the idle and the "turbine" noise... work ends in an hour, now I'm very anxious to get home and find out for sure.
10-24-2007, 02:44 PM
#43
Supporting Maxima.org Member
Thread Starter
iTrader: (5)
Join Date: Aug 2002
Location: Houston, TX
Posts: 1,456
I hope the troubles I've had here will help you prepare better than I did, and I thought I was well prepared at the time. Please ask questions if something is unclear, better to do so now while everything is still fresh in my head.
10-24-2007, 02:51 PM
#44
If you need to do a head gasket, definitely pull the engine and do the whole list while it's out. if you're going to skip the head gasket, then do it in the car as two projects. but if you need a head gasket, that usually doesn't get by just driving on it without doing major damage to the engine.
Mike, the O2 sensor will cause the noise, but I don't think it'll cause your idle issues. I ran without one for a while (prototype WSP y pipe... O2 bung had the wrong threads in it so the sensor wouldn't go in..) anyway, it ran and idled fine without the sensor- just ran rich.
your idle is most likely a vacuum issue somewhere. check hoses and gaskets. if you can't see any hose issues, start spraying the gaskets (mating surfaces) with a can of engine starting fluid.. you'll hear the engine surge when you spray the leak..
Mike, the O2 sensor will cause the noise, but I don't think it'll cause your idle issues. I ran without one for a while (prototype WSP y pipe... O2 bung had the wrong threads in it so the sensor wouldn't go in..) anyway, it ran and idled fine without the sensor- just ran rich.
your idle is most likely a vacuum issue somewhere. check hoses and gaskets. if you can't see any hose issues, start spraying the gaskets (mating surfaces) with a can of engine starting fluid.. you'll hear the engine surge when you spray the leak..
10-24-2007, 04:56 PM
#45
Supporting Maxima.org Member
Thread Starter
iTrader: (5)
Join Date: Aug 2002
Location: Houston, TX
Posts: 1,456
I was right on the O2 sensor, that fixed the issue. The idle was caused by a slight extra tension on the throttle cable, its normal now.
I just went on a test drive, and I am thrilled. I dont remember the engine ever being so smooth and free of random noises. Matt those mounts are excellent, no vibration of any kind even as low as 500 RPM. The UDP's effect is very evident, it revs much more rapidly. I had the AC and lights on, on idle... the air was very cold and the alternator didnt have any trouble at all.
I just went on a test drive, and I am thrilled. I dont remember the engine ever being so smooth and free of random noises. Matt those mounts are excellent, no vibration of any kind even as low as 500 RPM. The UDP's effect is very evident, it revs much more rapidly. I had the AC and lights on, on idle... the air was very cold and the alternator didnt have any trouble at all.
Thread
Thread Starter
Forum
Replies
Last Post
mkaresh
8th Generation Maxima (2016-)
21
03-12-2018 06:48 PM
DC_Juggernaut
7th Generation Maxima (2009-2015)
4
09-28-2015 04:07 PM