ATTN: to all those that have removed the resonator.

3722 Views 23 Replies 15 Participants Last post by sk515, Apr 5, 2001

sk515

Discussion Starter · Apr 4, 2001

Attn: 5th gen Prelude owners who removed thier stock intake. I'm not sure if this applies to the 4th gen also....

This is for all of you who "cap off" that hose going to the resonator after you take off your stock intake:

DON'T DO IT!!!! DON'T DO IT!!!! DON'T DO IT!!!!

For all of you who heard what was going on with my tranny, here's what happened. That line that some idiot (actually, I'm the idiot for doing it!) said to cap off is actually a breather line for your tranny. When you cap it off, eventually it causes extreme pressure in your tranny, and before you know it you start having problems. It causes your tranny to leak, your tranny's gaskets to blow, excessive tranny heat and a whole mess of other problems. Luckily my warranty covered mine, but you may not be so lucky. It caused over $2000 worth of damage to my tranny. Just zip tie that line to something so it's not just flopping around in your engine bay, and so it won't get blocked or clogged by anything. So if someone tells you to cap that line off, DON'T DO IT!!!

This is what someone posted on the SHO site. Just wondering what people think. To tell the truth im a little worried and want to unplug that hose right now. but i want some more feedback. thanks guys

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98 FBP Prelude SS
AEM Intake
Eibach Pro-kit
Koni Yellows
Neuspeed Strut Bar
32 Tint all around

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ImagePree

· #2 · Apr 4, 2001

he probably just had a bad tranny...
most of us here who have either the AEM or ICEMAN have capped it off...

i've had it for over 15k miles already and no problems whatsoever. besides, just follow the vacuum hose, it leads to the intake manifold.

Ng Luder

· #3 · Apr 4, 2001

what? r u sure about that??? all sources say we should close up that vacuum line... i did it the way NTPOG did.

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Crystal Blue 99' SS Lude (born on 7/1/99)~when i got it
CURENT MODS:
-AEM CAI (silver)-DC Sports CC 4-2-1 Headers
-Tanabe Racing Medalion -Apexi V-AFC -autometer A/F gauge -autometer EGT gauge -zex kit w/ plugs running 55 shots -NOS purge kit
HAVE AND INSTALLING SOON:
-UR pulleys set SS

screen name: CBFORMULA

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etherealude

· #4 · Apr 4, 2001

no problems here. are you sure it was the resonator he took out?

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-Eric
97 Nordic Mist Prelude

while i go take more.. "pleasing" pictures you'll just have to deal with this one. now wheres that dig. cam?

[This message has been edited by etherealude (edited April 04, 2001).]

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sk515

Discussion Starter · #5 · Apr 4, 2001

that was his post verbatim..

so i dunno.. its getting me all worried though...

ng luder: damn i love that sig pic

------------------
98 FBP Prelude SS
AEM Intake
Eibach Pro-kit
Koni Yellows
Neuspeed Strut Bar
32 Tint all around

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ahcjar103

· #6 · Apr 4, 2001

what does the intake resonator have to do with the transmission? i think this guy capped off the wrong line, or just plain doesn't know what he's talking about

oh...i see he's from SHO...hmmmmmmmmmmm

sk515

Discussion Starter · #7 · Apr 4, 2001

<font face="Verdana, Arial" size="2">Originally posted by ahcjar103:
what does the intake resonator have to do with the transmission? i think this guy capped off the wrong line, or just plain doesn't know what he's talking about

oh...i see he's from SHO...hmmmmmmmmmmm</font>

hehe. its pretty dead over there.. yeah i was thinking the same thing.. wtf does the resonator have to do with the transmission..

------------------
98 FBP Prelude SS
AEM Intake
Eibach Pro-kit
Koni Yellows
Neuspeed Strut Bar
32 Tint all around

BlackMagic

· #8 · Apr 4, 2001

agree with saying this is BS...

i made a note in the thread he posted

ahcjar103

· #9 · Apr 4, 2001

i think i set this guy straight..

Marsh

· #10 · Apr 4, 2001

2

Dude. That is a vaccum line. It is connected to a vaccum operated valve actuater and runs directly to it's own nipple on the intake plennum. I actually ripped the whole thing out all the way to the intake, so I know what I'm talking about. I think you'd better go take another look.

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Marshall McLean
97 Prelude SH
<A HREF="http://www.hondaprelude.to" TARGET=_blank>

</A>

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ahcjar103

· #11 · Apr 4, 2001

<font face="Verdana, Arial" size="2">Originally posted by Marsh:
Dude. That is a vaccum line. It is connected to a vaccum operated valve actuater and runs directly to it's own nipple on the intake plennum. I actually ripped the whole thing out all the way to the intake, so I know what I'm talking about. I think you'd better go take another look.

</font>

i posted to that guy on SHO a while ago...i think he got the point

chim15

· #12 · Apr 4, 2001

Haha! I just read that post and you know what the funniest thing is? The "mechanic" who worked on his car was sure that the vaccum line from the resonator caused his SS tranny to breakdown, not the 60-shot of NOS.

Yeah, that makes perfect sense.

Come to think of it, I'm sure that leaving the air caps off of your tires causes the pistons to shoot through your hood. So I dunno about you guys but I'm headin' down to Pep Boys to go buy some of those dice air caps.

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2000 5-speed Prelude
Nighthawk Black Pearl
Momo Alumsport shift knob
Iceman Competition Intake
Mugen cat-back exhaust
Mugen headers
AEM underdrive pulleys

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MikeRenz

· #13 · Apr 4, 2001

Both myself and quickprelude (in our measly lil 4th gens) have AEM CAI's and took out all the tubing that leads from the flapper up the the throttle body. I left mine uncapped and he had taped over his to avoid sucking in dirt.

He made fun of mine not being covered saying "thats real good for the engine"

A couple weeks ago he put a rubber nipple over the opening instead of tape, making a very good seal. All of a sudden his car was sputtering and running like a '57 chevy.

Simply taking the nipple off cuase the car to idle and run smoooooth. So this lil vacuum line DOES cause some stress somewhere...but I don't think the tranny is a victim.

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98 San Marino SH

· #14 · Apr 4, 2001

a while back, sport compact car did an article on internet message boards. According to them, for the most part, these boards can be very beneficial, where owners can share little tips and suggestions. However, there are also a lot of mis-informed people out there. This is a perfect example.

I too removed my resonator for my AEM CAI. Dude, check the vaccum line again. It goes from the resonator, to the butterfly valve vaccum solenoid (little black box) up to the intake plenum.

now how that affects the breathing of the tranmission, I don't know, but ask yourself this.....if you never drove in the vtec range (god forbid) the second intake runner would never open, and the butterfly valve would never move, therefore allowing NO circulation in that vaccum line. Is your transmission still going to blow??? Do you think Honda is that stupid??

Sheeesh

KrautLude

· #15 · Apr 4, 2001

Not to sound mean, but some people need to lay off the crack pipe. That line is a simple vacuum line; no rocket science there. Depending on the source and purpose vacuum is to be present at idle, present under WOT, and or regulated somewhere in between. This particular butterfly vacuum line falls into the third category and is controlled by a small solenoid.

Under some conditions (I'm guessing just RPM, possibly also temperature) vacuum is shut down allowing the flap to open (the flap is CLOSED with vacuum signal and OPENED with NO vacuum signal).

If the line is just disconnected you WILL HAVE A VACUUM LEAK at idle and until such time as the solenoid activates, sealing the vacuum. When the solenoid deactivates again your vacuum leak will return. This will make your car run too lean as it's a new source of air which isn't supposed to be there. An idle-present vacuum leak will typically cause the idle to be poor for the same reason. This stuff is "How Cars Work 101" and anyone who doesn't know it should really be careful about giving advice to others....

KrautLude

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BlackMagic

· #16 · Apr 5, 2001

hey guys...i just talked to a friend of mine with a 5th gen SS...he said something about it being a diff line...not the one that goes to the resonator...I haven't gotten the final word from him on where its located or what its attached to, but he asked a mechanic about it and he told him the same things...its for the tranny...but AGAIN, THIS IS NOT the vacum line that goes to the resonator

quickprelude

· #17 · Apr 5, 2001

<font face="Verdana, Arial" size="2">Originally posted by KrautLude:

Not to sound mean, but some people need to lay off the crack pipe. That line is a simple vacuum line; no rocket science there. Depending on the source and purpose vacuum is to be present at idle, present under WOT, and or regulated somewhere in between. This particular butterfly vacuum line falls into the third category and is controlled by a small solenoid.

Under some conditions (I'm guessing just RPM, possibly also temperature) vacuum is shut down allowing the flap to open (the flap is CLOSED with vacuum signal and OPENED with NO vacuum signal).

If the line is just disconnected you WILL HAVE A VACUUM LEAK at idle and until such time as the solenoid activates, sealing the vacuum. When the solenoid deactivates again your vacuum leak will return. This will make your car run too lean as it's a new source of air which isn't supposed to be there. An idle-present vacuum leak will typically cause the idle to be poor for the same reason. This stuff is "How Cars Work 101" and anyone who doesn't know it should really be careful about giving advice to others....

KrautLude</font>

Who are you refering to?

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<A HREF="http://hondaprelude.com/setups/setupsdsply.asp?id=63&gen=4&orderby=last_updated" TARGET=_blank>

</A>

AIM: quickprelude

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Pete

· #18 · Apr 5, 2001

<font face="Verdana, Arial" size="2">Originally posted by sk515:
When you cap it off, eventually it causes extreme pressure in your tranny, and before you know it you start having problems. It causes your tranny to leak, your tranny's gaskets to blow, excessive tranny heat and a whole mess of other problems. Luckily my warranty covered mine, .....</font>

The dealer that covered it under warranty must have been an idiot as well. Or, this could be yet another reason to dis-believe.

Two-Five Boy

· #19 · Apr 5, 2001

A lil OT but I tied a knot on the vacuum line for the butterfly valve instead of plugging it. Is that OK?

------------------
01' Base 5-Speed
AEM CAI, Neuspeed Frt. ST Bar
Parts to be installed-
Neuspeed Sports & KYB AGX,Apex V-AFC, Type-R Wing

ImagePree

· #20 · Apr 5, 2001

<font face="Verdana, Arial" size="2">Originally posted by EBP Lude:
A lil OT but I tied a knot on the vacuum line for the butterfly valve instead of plugging it. Is that OK?

</font>

serves the same purpose.
simple as finding a screw that fits the vacuum line and plugging it with that.

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