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amazing what a $5 PCV valve can do

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Old Aug 1, 2007 | 08:19 PM
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amazing what a $5 PCV valve can do

so i bought an OEM PCV valve since i figured it would be a good thing to change at 60k and man am i glad i did this. it took me about an hour struggling to take the damn thing off but boy was it worth it. the old one was still good since it wasnt clogged but with the new one, my car no longer vibrates at stop light with brake pedal applied, for some odd reason, the transmission shifts smoother in every gear. SURPRISINGLY the exhaust doesnt rattle when engine under heavy load. i was just about ready to ditch the SP2 for a cattman and buy some new motor mounts but all that has changed. everyone should change their PCV valve. i am a happy man once again !!!!!!!!

ps, why in the heck does nissan put every maintaince part in a PITA place to remove. knock sensor is next to impossible, PCV valve, fuel filter, everything is squeezed in the hardest areas to reach.

now tomorrow is the fun part, knock sensor & fuel filter.
Old Aug 1, 2007 | 08:26 PM
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you say it stops the raddling at stop lights? whould this be helpful to do because my max does low idle and voltage at stop light, idle and while in reverse//
Old Aug 1, 2007 | 08:38 PM
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make sure u add in the oil catch can for more filtration!!!
Old Aug 1, 2007 | 08:41 PM
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Originally Posted by VIP Maxima
now tomorrow is the fun part, knock sensor & fuel filter.
Shut up!! Try changing a knock sensor on a 99 Cali-spec and then come back and tell me its hard changing it on a fed spec.

GL w/ the mini tune up. Your car only has 60K miles tho??
Old Aug 1, 2007 | 08:41 PM
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not oil, FUEL FILTER doesn't do much does it. i have it laying in the box new, and might decide to get my 9.99 back. LOL. changed my intake and cleaned throttle body, <-- that you should do ~!!!!
Old Aug 1, 2007 | 08:45 PM
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What do you mean by oil filter?

Also, I still say the proper way to change a KS is removing the IM in order to apply proper torque to it. This is especially important with this type of sensor.
Old Aug 1, 2007 | 08:48 PM
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fuel filter is amazly easy to do with the whole intake assembly off. just gotta bust out the screw driver to pry the hoses off it.
Old Aug 1, 2007 | 08:48 PM
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OOPS, i meant fuel filter. LOL
Old Aug 1, 2007 | 08:50 PM
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Ok, I'm still Fuel filter doesn't do much? It filters?
Old Aug 1, 2007 | 08:54 PM
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Originally Posted by NmexMAX
Ok, I'm still Fuel filter doesn't do much? It filters?
filters, but the fact of replacing it is not worth my 10 bucks!
well, for you guys it probally is, but i just need my max until next june! vroom in my gs.
Old Aug 1, 2007 | 08:55 PM
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Originally Posted by NmexMAX
What do you mean by oil filter?

Also, I still say the proper way to change a KS is removing the IM in order to apply proper torque to it. This is especially important with this type of sensor.

You just lack the skillllllz to tq it properly with the IM on
Old Aug 1, 2007 | 08:58 PM
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$5 from the dealer? If so, I'll give this a shot. I get that vibration at the stop light as well. It's worse when I have my A/C on.
Old Aug 1, 2007 | 09:01 PM
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OK all this 60K service stuff is honestly easier done all at once.

Take the intake off and take the TB off, then the IACV completely off, might as well do the EGR pipe since the iacv is off and its right there, then the fuel filter is right there for easy access, then the order does not matter, PCV, plugs, belts (maybe not 60K but might as well).

oh and dont forget to tighten the throttle cables when u put the TB back on, makes the throttle feel better, and buy new gaskets for the TB and IACV. KS is optional at this time.
did i forget anything ?

and how does PCV cure all those symptoms u are describing? sounds like placebo effect to me. Oh and it took me 5 minutes to replace my PCV, why did u have so much trouble with it?
Old Aug 1, 2007 | 09:09 PM
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PCV took me like 15 mins... bah.. the only difference I noticed was a little bit lower idle RPM. (after ~100k.. opps)
Old Aug 1, 2007 | 09:31 PM
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Originally Posted by 99BlackMaxMS
Shut up!! Try changing a knock sensor on a 99 Cali-spec and then come back and tell me its hard changing it on a fed spec.

GL w/ the mini tune up. Your car only has 60K miles tho??
my car is a 98 CA spec, so same thing. the car has 61XXX miles, yes.

Originally Posted by TurTLe*
fuel filter is amazly easy to do with the whole intake assembly off. just gotta bust out the screw driver to pry the hoses off it.
fuel filter doesnt even require intake manifold removal. i have changed it before and its a piece of cake 15 minute job.

Originally Posted by andrei3333
how does PCV cure all those symptoms u are describing? sounds like placebo effect to me. Oh and it took me 5 minutes to replace my PCV, why did u have so much trouble with it?
i have no idea how because they arent even related. 5 minute job to replace PCV. i dont buy it. minimum 15 minutes. its not very easy to attack it with needle nose pliers if the IACV is still attached. and the hoses are very stiff, cant bend it and take it off easily.

Originally Posted by g4nismo
make sure u add in the oil catch can for more filtration!!!
i have aquired all the parts for this to install it during my supercharger install since its a must....


i have NO idea why you guys need to take off the intake manifold to remove fuel filter. its not even remotely close to there
Old Aug 1, 2007 | 09:35 PM
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Originally Posted by VIP Maxima
fuel filter doesnt even require intake manifold removal. i have changed it before and its a piece of cake 15 minute job.
15 minutes ? i dont buy it, must have taken like half an hour at least

OK honestly, the PCV involves One hose clamp and 2 10mm bolts to move the egr thingy out of the way. maybe not 5 minutes, but 6, or 7, ok fine a whole 10 minute job

and yes the fuel filter is A LOT easier with the intake off because the resontator box is slightly in the way and if u dont remove the intake it rubs on ur arm very uncomfortably, its not in the instructions, but cutting up ur hands is also not mentioned in the FSM...
Old Aug 1, 2007 | 09:37 PM
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Just to add so some of you don't turn this into "seafoam"; THIS WILL NOT FIX ALL YOUR IDLE/HESITATION PROBLEMS, JUST BECAUSE IT WORKED FOR HIM DOESN'T MEAN IT WILL WORK FOR YOU SO DON'T GET YOUR HOPES UP!

Just figured i'd add that so people don't go crazy with "my pcv threads"
Old Aug 1, 2007 | 09:38 PM
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fuel filter took me literally 15 min or less. i have a CAI so its much easier. no need to take off airbox.

Originally Posted by Kevlo911
Just to add so some of you don't turn this into "seafoam"; THIS WILL NOT FIX ALL YOUR IDLE/HESITATION PROBLEMS, JUST BECAUSE IT WORKED FOR HIM DOESN'T MEAN IT WILL WORK FOR YOU SO DON'T GET YOUR HOPES UP!

Just figured i'd add that so people don't go crazy with "my pcv threads"

i agree, to each his own. my car is very well maintained. fuel system cleaner every 3k. sea foam every 10k. pretty much everything else is on scheduele
Old Aug 1, 2007 | 09:39 PM
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^^^ ahhh now thats a whole different animal
Old Aug 1, 2007 | 09:40 PM
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BTw since we are on this topic, i never heard anything close to conclusive regarding the fuel filter change interval

this is what someone here said: 15K Mi for OEM, 30K Mi for 300zx filter, does this sound right ?
Old Aug 1, 2007 | 09:42 PM
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Originally Posted by andrei3333
BTw since we are on this topic, i never heard anything close to conclusive regarding the fuel filter change interval

this is what someone here said: 15K Mi for OEM, 30K Mi for 300zx filter, does this sound right ?

That is correct.
Old Aug 1, 2007 | 09:44 PM
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Originally Posted by andrei3333
BTw since we are on this topic, i never heard anything close to conclusive regarding the fuel filter change interval

this is what someone here said: 15K Mi for OEM, 30K Mi for 300zx filter, does this sound right ?
sounds about right. ditched oem at 30k for 300zx. ditech it again at 50k for another z32. will ditch it one more time at 61k. after that every 30k
Old Aug 1, 2007 | 09:46 PM
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Originally Posted by VIP Maxima
sounds about right. ditched oem at 30k for 300zx. ditech it again at 50k for another z32. will ditch it one more time at 61k. after that every 30k
Dang buddy... how do you have SO few miles??
Old Aug 1, 2007 | 09:52 PM
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i bought it with 19k on the clock & i only drive within 50 mile radius of my house, otherwise friends come into play
Old Aug 1, 2007 | 09:54 PM
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so you have never taken your max on a road trip?

Oh man thats unfortunate, the maxima is a great vehicle to take on long trips, its got amazing hwy ride. i looooooove taking my max out into the country away from the city, and to niagara falls and back the same night just to gamble at the casino's. This car has a very nice hwy ride andwith the music bumping, i cant stop...sorry, back on track
Old Aug 1, 2007 | 09:58 PM
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road trip? lol never. a stock maxima would be a blast to take on a road trip but one with a modified suspension is a totally different story on the highway. even if i dared to take it on a road trip, im sure nobody would come a long with me. they would rather take the greyhound !
Old Aug 1, 2007 | 10:01 PM
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Originally Posted by VIP Maxima
my car is a 98 CA spec, so same thing. the car has 61XXX miles, yes.
Too bad 98 and 99 CA spec are completely different. The swirl valve and 6 vacumn lines and the more narrow entrance under the IM is the biggest PITA in the 99. At least you guys can see your KS......

And congrats on the low mileage. Wish I could say that about my car @113K.
Old Aug 1, 2007 | 10:01 PM
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^ hehe, so whats the point of modifying the suspension? i mean i know it looks better and corners faster, but whats the point....

not worth it for a daily driver. my stock max rides so smooth, its hard to believe the car is 10 years old. im not bashing or anything, i mean if u took the time and money to spend on a car why not enjoy it a little more often, and show off that suspension too
Old Aug 2, 2007 | 12:20 AM
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You know what else would get rid of that shaking at stoplights?

A manual transmission.

Old Aug 2, 2007 | 12:33 AM
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matter of fact... just changed mines in my all three maximas... and my dads camry...sh** works man....
Old Aug 2, 2007 | 05:06 AM
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Originally Posted by aznstormin
Dang buddy... how do you have SO few miles??
I only have 40,625 on my car as of yesterday. I'm a 99 Cali-Spec. Got it in November of 06 with 26,004 on the clock.

Old Aug 2, 2007 | 05:07 AM
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^^^^ WOWWWWWW


140k ftl
Old Aug 2, 2007 | 05:09 AM
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Originally Posted by g4nismo
^^^^ WOWWWWWW


140k ftl
lol. Old lady (who was a home maker) drove it on mostly errands. She was sick for 8 months with asbestos cancer and when she passed away...her husband kept the car for another 8 months. So basically car didn't move for 1yr and 4months.
Old Aug 2, 2007 | 05:19 AM
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I dunno, i did my PCV like 10 months ago and it didn't change the way the car idles at all (while in "D" or while in "R"). The rpms just drop from 750 down to 550. I hate those barely noticeable, but still annoying shakes.
Old Aug 2, 2007 | 05:23 AM
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Ya'll just need to adjust your idle by using that screw on the IACV. 750 is what it should be.
Old Aug 2, 2007 | 05:32 AM
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yeah, well that's what i did, and that's what it is in "P" but it drops down to 550 in "D" or "R"
Old Aug 2, 2007 | 05:43 AM
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Just raise it then...it's going to drop down in D or R because the engine is pulling more juice when it's in gear so to speak. I have mine set to like 800 or so. 750 is the FSM number...but it depends on other conditions of the car.
Old Aug 2, 2007 | 07:20 AM
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I've set mine to exactly 800rpm with no load. IF i use the ac, it actually makes the idle stay @ ~700rpm while in "D", making it smooth
Old Aug 2, 2007 | 07:27 AM
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. Every car is slightly different. Glad you got it the way you want it .
Old Aug 2, 2007 | 08:11 AM
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Originally Posted by VIP Maxima
a stock maxima would be a blast to take on a road trip but one with a modified suspension is a totally different story on the highway.


I would imagine that the highway would actually be a better ride then in the city with the modified suspension.
Im on AGX's and Sprints and there pretty stiff, in the city the bumps can get kind of harsh but on the highway its smooth rolling. I dont have coilovers but from what Ive read they ride better then my setup so I would think the ride on the highway would be nice. If not, then the coilovers wouldnt be worth it to me. Makes no since to me to sacrifice that much of the ride just to achieve the slammed look.

Quote:
Originally Posted by g4nismo
make sure u add in the oil catch can for more filtration!!!

Originally Posted by VIP Maxima
i have aquired all the parts for this to install it during my supercharger install since its a must....

Why is the oil catch can a must for a SC setup?



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