kurt1

Hay all

I found this interesting read about a VIAS fix. Has anyone had this problem. By the sounds of things in the article it happens to every 5th gen. Has anyone had this problem or had the problem and fixed it? It says only 5thghad this problem why not other generation maximas had this problem only the 5th gen?

http://www.vqpower.com/v2/articles.php?article_id=21

Cheers Kurt

T_Behr904

Yes, this problem happens. Many here have done the JB Weld fix.

I still haven't got around to removing mine and checking it, but i'm sure it's not working like it's supposed to since there is a drop in power above 5K rpm.

Galactica

iTrader: (5)

I know mine still works. Feels exactly like when the intake runners opened on my GSR. Love the surge from it!

kurt1

It seems like it was only a 5th gen problem this. It seems that the 6th gen didnt have this problem or they fixed it. Correct me if im wrong?

T_Behr904

It's the VQ30de-K engine in the 00-01 that has this problem. 02 on up has the VQ35 (3.5) engine which is different. The 02-03 is referred to as the 5.5 gen.

Rods03Max619

iTrader: (5)

got the butterfly valve...but NWP BOP handles that nicely...

BigLou55

iTrader: (6)

Mine was loose so I used JB Weld and let it sit overnight and been working fine ever since...did this back in November of last year

sweed88

Did the jb weld fix last night but was wondering if the shaft for the butterflys should be able to spin completely around? also i i tried to line the flat sides of the shaft with the knotch on the cup? is this correct cause the pic on the pix page didn't match where i put mine

maxed_out_99

Ok so I'm going to tear mine apart as well to check it. But... Is the car undriveable after the VIAS is removed? Will I have a massive vacuum leak? I gots ta wurk yamsayin

TravisCadello

So basicly lay jb quick n bottom of hole put round metal retainer and spring n center let dry?

ranmas2004

iTrader: (2)

THIS...the best VIAS fix is to DELETE it and replace with BOP.

TravisCadello

Not on a ThreeOh.

NmexMAX

iTrader: (22)

Are you going to bump every possible thread you can?

There are threads that have covered this process, and it hasn't changed over the years.

http://www.vqpower.com/v3/content/vias-fix

TravisCadello

I'm just confused i need to know how it works! i removed mine and cup still attached n spring stayed on I'M i took it off.


now it seems the solynoid needs to spin to open butterfly flap inside I'M. ifits JB welded its never gonna spin n open..ok I'm lost.

Okay i see now. okay but if my cup was attached and spring wasn't is that mean it was good? and how do i test internal link?



i know mine isnt working cause i used to hear it and feel it now i don't but suckin on that vaccum hose the solynoid move therefore i beleave it opens with vaccum from intake but i took vaccum off with new intake guys said i didn't need vaccum.




i see the problem now! on the I'M i can spin the rod in complete circle and pretty sure butterflys inside are not opening! and i can push yellow rod in inch in inch back out.

how do i fix this?

NmexMAX

iTrader: (22)

Did you read the link I posted?

TravisCadello

Yes but all is says is internal linkage is also prone to failing but no repair for it only the external solynoid repair.


I'm pretty sure i shouldn't be able to spin rod commin out I'M freely in a complete circle easily.

TravisCadello

I did that fix mine was still great condition though and its still same no go!! guessing i gotta remove I'M n see what broke n repair since no writeup on it.

carsnwomen91

Remove it and your top end will soar apparently

a33nismo

Our you saying the yellowish color rod spins freely when you took your vias unit off?

If so the power rod is supposed to spin freely when you remove the VIAS solenoid unit all it does is slide inside the manifold and fit into a bearing on the opposite side.

Also the rod should be loose and able to move in and out since once the unit is back on the spring will hold it tight.

Most of the VIAS i remove are still in good shapeand tight you just remove the spring install a little jb weld to the inside of the cup (not the outside or it wont be able to rotate) put the spring back in let it sit overnight and re install making sure to line up the notch on the power rod with the vias solenoid and good to go.

[img[/img]

NmexMAX

iTrader: (22)

Meh, not worth it with the DEK.

http://forums.maxima.org/all-motor/3...e-removed.html

TravisCadello

Yes^^^ n wow i thought it was connected to butterfly flaps inside manifold so if it jus spins inside bearings what opens flap?

also at idle if i suck on vaccum line on vias solynoid should i hear difference in intake sound? cause their isn't.

And in idle if i rev to 5k should it open or only under load?

I don't wanna remove it the low end power is already weak enough! just want it working properly.

Its no faster then my 99 n I'm sure this is why.

a33nismo

The power rod connects into the VIAS solenoid cup via the knotch that sticking out.

So the power valve doesn't move until 5,000 rpm and then the solenoid rotates the arm and turn the power rod.

your 00 shouldn't feel slower then your 99. I had a 98 maxima auto before i had this one and my 00 stock was about .47 quicker in the 1/4 mile then my 98. But there can be a few factors that are causing this.

Normally if you have any VIAS issue you will have a solenoid error code.

A good way to rule it out is to remove the solenoid and apply 12v to it and you should here it click if not the solenoid is bad and if so your system is probably good to go.

On these if the solenoid is working , the vacuum line isnt cracked and your cup is secure it should be working.

Here is a picture of my VIAS that i removed to apply a little jbweld inside the cup. Even after 13 years the cup was in perfect shape with no issues at all put i applied it anyway while i had it out. Also you can see the notch i was taking about that fits into the power rod to make it move.

TravisCadello

So theirs not a such thing as internal linkage broken in if solynoid is working the everything else is good?

it pulls like my 99 thru entire rpm table. it used to crack open way harder 10k miles ago! that why i figured its bad.