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Air pressure in Spark plug tube

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Old Feb 15, 2011 | 03:14 PM
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Default Air pressure in Spark plug tube

First off I have a 94 acura integra ls. about 200k miles.

I noticed oil in the spark plug tubes last week. I replaced the 4 seals for the spark plug tubes. Now i am getting air pressure in one of them. It will push the spark plug cap off the spark plug. Also the car seems to be misfiring, but thats expected with the air pressure is popping the cap.

What would cause that? Any help would be very much appreciated.
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Old Feb 15, 2011 | 03:17 PM
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Default Re: Air pressure in Spark plug tube

this is easy, you have a shitty pcv system that's pressurizing the valve cover and the grommets between the head and spark plug chamber are leaking allowing pressure to enter in

your fix

buy new valve cover gasket and replace the rubber o rings around the spark plugs

buy a new pcv valve
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Old Feb 15, 2011 | 03:34 PM
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Default Re: Air pressure in Spark plug tube

Thanks for the fast response. that sounds easy enough.

Another problem that i just created. i pulled the cap off the spark plug to see if i could feel air pushing out of it. car was idling on 3 cylinders, the car stalled, and now it wont start back up, did i blow a fuse or did i screw it up.
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Old Feb 15, 2011 | 03:40 PM
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Default Re: Air pressure in Spark plug tube

no but you probably fried the coil. you can't do that with these coils like you could the old oil filled coils on a 70s-80s car.

the $15-20 ebay coils will work fine for you. parts stores sell the same coil for 3x the price
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Old Feb 15, 2011 | 03:42 PM
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Default Re: Air pressure in Spark plug tube

this would be what you cooked
http://cgi.ebay.com/ebaymotors/94-95...ht_4790wt_1165
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Old Feb 15, 2011 | 03:56 PM
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Default Re: Air pressure in Spark plug tube

Is there a way to check to see if its cooked or not?
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Old Feb 15, 2011 | 04:20 PM
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Default Re: Air pressure in Spark plug tube

You can pull and test the coil, search how to test Integra coil. 94
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Old Feb 15, 2011 | 04:21 PM
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Default Re: Air pressure in Spark plug tube

not really, there is a test you can do but it's not accurate. i've personally seen coils spec out on the ohm meter yet still not start a car, then, when a new coil is installed the car starts.

99 out of 100 times you cook the coil when you do a compression test without unhooking the distributor or check spark the old fashion way especially if you allow the engine to run a few seconds. really common thing for noobs to do, thankfully it's only $22 to fix
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Old Feb 15, 2011 | 05:03 PM
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Default Re: Air pressure in Spark plug tube

Yeah Im learning the hard way.

The last couple days the car feels like its misfiring during idle, usually clears up when you accelerate. Would the pcv valve cause that? This car has been giving me some problems lately, I just want to make sure I fix everything.

Im picking up a Ignition Control Module and pcv valve from auto zone tomorrow. The module is going to set me back $98. I need my car, waiting for shipping just isn't a option right now.

Is there any tips or tricks for replacing these parts?

Thanks for the help guys, I do appreciate it.
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Old Feb 15, 2011 | 05:07 PM
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Default Re: Air pressure in Spark plug tube

don't, you likely have a fried coil, where did you get the idea on the ICM? an entire distributor is something like $150

you also could have bad wires and or bad contact which is what was causing the misfire.

only use oem pcv valves, the parts store ones don't breathe for ****

i don't see how you can "need" your car and get around buying a coil. vatozone will sell you one for 3x the online price, would get you going though.....wires are the other wild card, you really should use oem or ngk

in fact check the dealer for the ignitor and coil, prices may be similar to the parts store
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Old Feb 15, 2011 | 05:17 PM
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Default Re: Air pressure in Spark plug tube

opps was looking at the wrong part, Ignition Coil, still a $78 part. Website says its in stock at auto zone. Link hopefully the link works
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Old Feb 15, 2011 | 05:28 PM
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Default Re: Air pressure in Spark plug tube

that is such an **** rape. you could contact a net vendor, have them next day air you a coil and still spend half the money
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Old Feb 15, 2011 | 05:54 PM
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Default Re: Air pressure in Spark plug tube

Well hopefully i dont mess anything else up when im changing out the parts. Ill let you guys know how it goes.
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Old Feb 16, 2011 | 05:41 PM
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Default Re: Air pressure in Spark plug tube

replaced the ignition coil. car starts again. problem with the pcv valve, the black hose that it connects to is broke, What would that part be called, and how hard is it to replace?
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Old Feb 16, 2011 | 06:24 PM
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Default Re: Air pressure in Spark plug tube

extremely easy,

however, it's odd your car isn't idleing high. if that hose is broke you have a straight vacuum leak into the manifold. when you say the hose is broke, do you mean the one from the pcv to inatke?

how exactly did this hose "break" anyway? they are rubber and fairly hard to kill
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Old Feb 16, 2011 | 06:39 PM
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Default Re: Air pressure in Spark plug tube

Yes it does have a high idle right now. when i pulled the old valve out, the black tube fell through the hole in the manifold. all i could see left in the hole was a broke black tube. didnt feel like it was rubber, maybe dry rot ?
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Old Feb 16, 2011 | 06:48 PM
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Default Re: Air pressure in Spark plug tube

would the car be safe enough right now to drive it?
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Old Feb 16, 2011 | 06:48 PM
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Default Re: Air pressure in Spark plug tube

oh that stupid plastic pcv tube, yes i know what you mean. they can pull up the pcv system on the screen, buy a new pcv valve and the plastic tube and the plug that connects the plastic tube to the black box after that you should be good to go.

until you get these parts you can rig it by blocking off the vaccum port from the pcv to the intake manifold and just let the pcv vent to the atmosphere. without a source of vacuum you probably should pull the pcv and just let that broken tube act as a vent until you get the parts to resore your pcv system

whatever you do, do not block the pcv system going to the black box or it will raise crankcase pressure
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Old Feb 16, 2011 | 07:04 PM
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Default Re: Air pressure in Spark plug tube

Thanks man. Whats the best way to block off the vaccum port? kink the hose the pcv valve is connected to?
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Old Feb 16, 2011 | 07:17 PM
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Default Re: Air pressure in Spark plug tube

as in blocking the hose from the pcv to intake manifold? few ways. a bolt in the hose, a cap on the intake manifold port. just get creative. it will fix your idle problem, then just remove the pcv all together for a couple day tie me over until you get the correct parts from the dealer
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Old Feb 16, 2011 | 07:24 PM
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Default Re: Air pressure in Spark plug tube

Unplug distributor while checking compression? Never heard of that before... then again I've never checked the compression on my GS-R in the past decade. Will remember to do that.
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Old Feb 16, 2011 | 07:40 PM
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Default Re: Air pressure in Spark plug tube

Originally Posted by PatrickGSR94
Unplug distributor while checking compression? Never heard of that before... then again I've never checked the compression on my GS-R in the past decade. Will remember to do that.
LOL if you don't you'll find out why it's a good idea to do so really quick
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Old Feb 16, 2011 | 07:46 PM
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Default Re: Air pressure in Spark plug tube

ok car is idling , bouncing between 1.5 and 2. i have a bolt in the hose, black tube going to the box is unrestricted
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Old Feb 16, 2011 | 07:46 PM
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Default Re: Air pressure in Spark plug tube

going to let it warm up and see what happens
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Old Feb 17, 2011 | 03:39 PM
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Default Re: Air pressure in Spark plug tube

Ok, got a chance to drive the car around some today. Seems to idle at around 800 - 1000 which is normal for the car. the only problem im having is the car is real sluggish, lots of loss of power. on a cold start the car is fine, no sluggish feeling at all, but once it warms up for a few minutes then it starts getting sluggish at low idle but if i give it gas it will clear up around 2500 + rpm's . city driving stopping at lights and what not, real sluggish almost wanting to stall at times.

have any suggestions?

Thanks for the help sofar, im learning allot.
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