Recent content by 1996XJ40

Just to update this thread one more time in case it helps anyone else with this issue... I was still having gauge issues, and found what was likely the original cause.. The #17 fuse (7.5a) was corroded, and the copper contacts that hold the fuse were cracked/broken.. bypassed the fuse panel...

Well I found the G106 ground (thanks 8Mud) and cleaned it up, as well as replaced the 3 main battery ground wires, since they were starting to corrode internally anyways. The Volt gauge still reads a little low, but it works now, and no more erratic tach/speedo! However... now I'm getting a...

Yeah cleaning the major grounds didn't make any difference, so I'm in the process of hunting all the smaller ones down. Haven't been able to find the G106 though, is it possibly a renix ground location?

Ok, so maybe someone can answer this.. shouldn't the voltage at the contact screws on the back of the gauge cluster be 12v? I tested with a good ground and was getting ~8v at the screws..I know they get power from the PCM, so maybe that's correct.. :dunno:

Also forgot to mention, the volt gauge does work at all, but the battery/alt check out OK..

So fresh of off fixing my leaking exhaust manifold, it's on to the next issue thats been plaguing the Jeep... gauge cluster (only the tach and speedo it seems) is sensitive to power draws. they seem OK until another accessory is turned on, then they go erratic, or stop working completely.. the...

Well just to update, I replaced the manifold with a new Dorman unit (same as what was on it before) and no more leak , yay! Still no idea where/how the old one was leaking..bad weld maybe.. :dunno:

Back together with a new gasket, and it's still leaking.. Pretty sure it's the manifold at this point. Aside from being slightly warped, it didn't seem to line up with the gasket holes perfectly either. I think I'm going to just get a new manifold and hope for the best..

I've always heard to wait till it's cold, I'll try it warm next time. But it seems the manifold is ever so slightly warped, although I'm not sure it's enough to cause a leak. I loose fit it on the head sans gasket and hand tighten the center bolt and one end, and there is a 1/8 gap on the...

yeah, I torqued to spec to start and re-torqued to slightly above spec after a full heat/cool down cycle. no change.. So I just pulled the whole thing apart again..and no sign of a leak on the gasket anywhere...double checked the exhaust manifold again and no cracks that I can see...

So it appears the flanges on the aftermarket manifold are a good bit taller than the intake. Didn't even notice this before, but I'm guessing it could the part of, if not the cause of the leak...

I did run some seafoam through it this weekend, and while there was a little bit smoke in the engine bay (confirms there is a leak, however small) it wasn't enough to pinpoint the exact location. but sounds like it's at the rear of the engine.. I figured I would find obvious signs of a leak...

Have a troubling exhaust leak I can't seem to figure out... Some history.. I have a 96 XJ that I replaced the typical cracked exhaust manifold on a while back.. at the time it seemed to still have a small leak that I couldn't find, well it doesn't get driven much so Ignored it. Well fast...