97' 4.0 Intake Mainfold Question - JeepForum.com
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Unread 08-25-2010, 10:00 PM   #1
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1997 TJ Wrangler 
Join Date: Aug 2010
Location: Menifee, CA
Posts: 475
97' 4.0 Intake Mainfold Question

First question, So my exhaust manifold was broken in 3 parts, so I replaced it. That took FOREVER (100 degree heat is NOT fun, and trying to find all the bolts underneath took some dislocating of my joints) Follow a great tut. but I a stupid (no shame admitting this) and when I put it back on one of the tabs on the intake manifold broke off (totally my fault) So I lined up everything as best as I could and bolted things up. I took like 30 mins doing this so each side is the same (or damn close) So after bolting everything up, started her up and smoke for a few seconds (gaskets) and was running great. I haven't taken her out yet but I don't hear anything, so it looks like the exhaust sealed (know more when I do the smog check)

My question - How do I know if the intake manifold sealed? What kind of symptoms will show up / How do I tell if it going to work.


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Unread 08-25-2010, 10:52 PM   #2
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1990 YJ Wrangler 
Join Date: Jun 2007
Location: San Diego, CA
Posts: 17,250
Have the engine running and spray wd40 or carb cleaner around the manifold. If it's leaking it will suck in and change the idle speed.
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