95 Wrangler YJ 2.5 Liter Throttle body Vacuum Problem - JeepForum.com
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Unread 01-07-2011, 03:46 PM   #1
nelsonbr1
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1995 YJ Wrangler 
 
Join Date: Jun 2010
Location: Ohio
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95 Wrangler YJ 2.5 Liter Throttle body Vacuum Problem

Ok so I screwed up! I installed a throttle body spacer and a cold air intake today.
Unfortunately when I put everything back together I noticed that on the bottom of the throttle body there was a vacuum intake that was missing the hose. I can't find where that is supposed to be hooked up anywhere. This intake is actually on the the throttle body not on the manifold.
I looked at my buddies 94 YJ and he doesn't even have that intake tube?
Does anyone know where I can find pictures or a good vacuum diagram.
This is pretty vague but it is kinda difficult to explain

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Unread 01-07-2011, 05:27 PM   #2
moonshinefuel
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1995 YJ Wrangler 
 
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Location: Los Angeles. California. United States.
Posts: 4,911
Its supposed to be capped. It does not go to anything.
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Unread 01-07-2011, 05:29 PM   #3
nohl75
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It's capped and it was a mistake to install a throttle body spacer and a cold air intake, if I were you go back to stock, it is much better. I have cold air and it sucks up water like crazy.
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Unread 01-07-2011, 05:56 PM   #4
nelsonbr1
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Fantastic! Thanks for the help.
I put them both on because this jeep is going to be my daily driver during the winter. Trying to save a little gas mileage. I will try it for a while and see how it works.
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Unread 01-19-2011, 10:10 PM   #5
nelsonbr1
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Follow up

I could not get the jeep to run correctly with the Throttle Body Spacer . It ran TERRIBLE. I checked the vacuum multiple times, just for the heck of it replaced the Throttle Position Sensor all to no avail.

So.... I took the Throttle Body Spacer off and low and behold the jeep ran like it was new again.

I do like the Cold Air Intake though, so the kit from Quadratec was not a complete waste of money. I bought both as a package.

Anyone want a slighly used Throttle Body Spacer? I will say it is a piece of junk so the price is right. Oh I don't know free sounds good. You just have to pay for the aspirin when your Jeep doesn't run. Make sure your spouse's car runs so you can get to the store.
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Unread 01-19-2011, 10:25 PM   #6
nohl75
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Quote:
Originally Posted by nelsonbr1 View Post
I could not get the jeep to run correctly with the Throttle Body Spacer . It ran TERRIBLE. I checked the vacuum multiple times, just for the heck of it replaced the Throttle Position Sensor all to no avail.

So.... I took the Throttle Body Spacer off and low and behold the jeep ran like it was new again.

I do like the Cold Air Intake though, so the kit from Quadratec was not a complete waste of money. I bought both as a package.

Anyone want a slighly used Throttle Body Spacer? I will say it is a piece of junk so the price is right. Oh I don't know free sounds good. You just have to pay for the aspirin when your Jeep doesn't run. Make sure your spouse's car runs so you can get to the store.
Told you so man lol. I have a cold iar too, but the only thing I like about it is the sound.
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Unread 01-20-2011, 10:02 AM   #7
YelloJeep
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I have a '91 with TB spacer (PO put it on) and cold air and it runs fine. I later added the 4.0 TB. Works great.
Sorry to hear you had so much trouble. Air leak maybe where the TB spacer was?
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Unread 01-20-2011, 12:27 PM   #8
moonshinefuel
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Doesn't make much sense that a spacer would make it run terrible to me, it's just a small spacer. Not sure why that would happen.
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Unread 01-20-2011, 12:40 PM   #9
Krochus
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Quote:
Doesn't make much sense that a spacer would make it run any better to me, it's just a small spacer.
I fixed it.

Quote:
I put them both on because this jeep is going to be my daily driver during the winter. Trying to save a little gas mileage.
You're going to have to drive A LOT to recoup $300 worth of parts with a 0.012MPG improvement.

I actually feel kinda bad for the folks who buy into the almost downright fraudulent advertising perpetrated on them by various "intake" and bolt on vendors, and you really can't blame the non car guy for not knowing especially given the absolute %*@& storm of marketing they're bombarded with.
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Unread 01-20-2011, 12:46 PM   #10
Bojeepus
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the only reason i could see it running like crap is if you didn't get a good seal on both sides of the spacer.
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