XJ Tranny Rattle

[harrum]

So I tried to search this topic before posting this but I was unable to get a proper explanation...

I have a 98 XJ and ever since I bought it the automatic transmission has been producing a slight rattle in first gear between 1,500 and 2,000 RPM's. It seems like a hollow knocking sound. It's fairly quiet but most noticable when accelerating from a stop, turning left or right from a stop, or even slowly acending an incline like a driveway. It will knock 5 or 6 times, then it goes away.

It sounds like its coming from under the center consol below the shifter on the passenger side, but i guess it could be originating from anywhere...

The tranny shifts fine and selecting gears is not a problem. part-time, full-time, and 4LOW all work fine.

Any ideas to fix this minor annoyance?

[cLAY]

The exhaust runs right over the tranny crossmemeber about there. There should be a rubber mount coming off of the rear tranny mount to keep the exhaust from moving. Might want to check it out. Also check the tranny mount while you are there.

[harrum]

Thanks for the info, i'll definitely check those out.

[jpthing]

One of the most common Jeep rattles is the t-case shifter and linkage.