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XJ Ask the Question Thread
03-05-2014, 11:01 PM
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Year: 1993 YJ Wrangler
Engine: 4.0 I6
I'd go ahead and do it for that price. I wouldn't beat on it, but the matching gears will allow you to use 4WD if you need it, and you'll be able to resell it for at least what you're paying.
03-05-2014, 11:02 PM
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Year: 1999
Model: Cherokee (XJ)
Engine: 4.0 L
I'll be on 33's, no locker, and I'm generally pretty easy on my jeep. I'm probably going to pick it up
03-05-2014, 11:38 PM
Herp Derp Jerp
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Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
TJ owners have no problems running 35s on 'em. You'll be okay. HP is stronger and has better clearance, 33s and no locker I wouldn't worry.
03-06-2014, 12:44 AM
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Year: 1991
Model: Cherokee
Engine: 4.0 HO
03-06-2014, 12:48 AM
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Year: 89
Model: Cherokee
Engine: 4.0 I6
03-06-2014, 05:40 AM
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Year: 1999 Jeep Cherokee
Model: Cherokee
Engine: 4.0
03-06-2014, 06:23 AM
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Year: 2000
Model: Cherokee
Engine: 4.0
2000 XJ 4.0. Looking for the exhaust manifold to flange hardware. Rockauto has some listed, but they are studs that press into the manifold. The ones that came out were bolts and nuts, with the nuts having a flange or tang on the nut. You can start the bolt, and the tang keeps the nut from spinning when tightening. The one from Rockauto,'and the only style I can find when looking by application are the press in studs, and they are way to big to fit into the manifold. Any one have any idea where to get them, or is it going to be a stealership only item........thanks.....RR
03-06-2014, 06:27 AM
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Year: 1999
Engine: 4.0
So my fiancee's WJ (140k miles) was having backfiring (brother in law told me) and I was checking it out, I had a vacuum gauge on and the needle was pointing to 15 while idling and when I pushed on the throttle, it went up 20-22 during acceleration. But when I let it go, it went back to 15-17 I tried to adjust the timing by turning the thingy where the distributor was supposed to be. And finally got it to be at 22 at idle, but it drops down to 13-18 while revving a and would stall out. So far, the plugs and all sensors (except for those on throttle body) are replaced. Would there be something wrong with the valve train or something else?
03-06-2014, 06:37 AM
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
03-06-2014, 12:11 PM
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Year: 1999 Jeep Cherokee
Model: Cherokee
Engine: 4.0
Ok. Your right. The folks a Felpro and the engineers that designed the 4.0 did not think much of it so they made 2 different gaskets just because. We are talking bore diameter so what the heck if the gasket it over hangs into the cylinder by .001. No big deal. Just run it.
Last edited by Houston Kid; 03-06-2014 at 12:42 PM.
03-06-2014, 12:20 PM
Beach Bum
So my fiancee's WJ (140k miles) was having backfiring (brother in law told me) and I was checking it out, I had a vacuum gauge on and the needle was pointing to 15 while idling and when I pushed on the throttle, it went up 20-22 during acceleration. But when I let it go, it went back to 15-17 I tried to adjust the timing by turning the thingy where the distributor was supposed to be. And finally got it to be at 22 at idle, but it drops down to 13-18 while revving a and would stall out. So far, the plugs and all sensors (except for those on throttle body) are replaced. Would there be something wrong with the valve train or something else?
03-06-2014, 12:31 PM
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Year: 1999 Jeep Cherokee
Model: Cherokee
Engine: 4.0
It can be a pain in the rear to pull the header and reinstal to put a new gasket on but you would already be halfway there so why not? Like stated earlier, a new gasket crushes a bit to make a better seal.
Last edited by Houston Kid; 03-06-2014 at 12:36 PM.
03-06-2014, 12:35 PM
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Year: 1999
Engine: 4.0
I'm not upgrading the manifold. I just got another one and painted it, because the one on it got a crack.
The manifold and gasket appear to be original, and is nearly 140k miles now
Is there any gasket sealants I can use to help? I know it's probably a moot point because of the extreme heat from the header.
The manifold and gasket appear to be original, and is nearly 140k miles now
Is there any gasket sealants I can use to help? I know it's probably a moot point because of the extreme heat from the header.