Topic: Clogged Cat

[bestos]

Hey everyone.

Look out for the clogged cat, i could not get about 2200 RPMs and bad bad gas mileage.  I was hearing aLL kinds of rattling.  Paid 300 flat today to ahve the new cat installed and welded.  Jeep 4 banger runs much much better!

The shop that did the work said that there may be a leak in my exhaust manifold.  Said they could hear it after install.  Dunno.  My question is 2 fold. 

1.  Could the clogged cat have caused that with the pressure and heat buildup over the last week?
2.  How much would it cost me to have a new stock manifold installed?  parts and labor.  my guess that if no studs break it is an 8 hour job because of the intake mani.

[Bounty Hunter]

Chances are the front and/or rear studs on the exhaust manifold are already broken, common problem on the 4banger.  If that's the problem, replacing the studs will seal the manifold back up.

[bestos]

10-4.  keep the stock mani?

how long is the job to replace the studs and nuts?

[bestos]

Bump, repeat

10-4.  keep the stock mani?

how long is the job to replace the studs and nuts?

[cmgorman94]

You'd have to look at it first.  If it's cracked, replace it.  If it's just leaking at the head due to a stud or bad gasket, keep it.  I put a header on my brothers 98 in a few hours.  That doesn't mean that a shop will only charge you a few hours, but you could always do it. It really doesn't take any crazy tools, and you would gain a little experience. It's really not that hard.
Chad