soyjer
NAXJA Forum User
- Location
- California
If you don't believe that my transmission behaves as I describe, then please move on to another thread so that you can help someone whose problem you believe is real...please! PLEASE!
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Please try this with your XJ and tell me results?
- Thread starter soyjer
- Start date
If you don't believe that my transmission behaves as I describe, then please move on to another thread so that you can help someone whose problem you believe is real...please! PLEASE!
Green XJ Jeep
NAXJA Forum User
- Location
- Spanaway Wa
Doesn't take much rpm to increase line pressure enough to cause this.
The reason it clunks going into drive/reverse after a pause in neutral is the increase in torque converter speed causing a higher fluid pressure.
Chances are however that the previous owner installed a shift kit. Which is also another cause for this.
The trans shop installing a shift kit would not fix the issue only increase it.
- Location
- Houston, Tx
Swap it out for an AX15
RCP Phx
NAXJA Forum User
- Location
- Phoenix,Az
Or check out yourself instead of wasting a year plus of our time. A lot of great members have told you what's going on and you refuse to "LISTEN"!
soyjer
NAXJA Forum User
- Location
- California
Thanks, but line pressure is fine (~60 psi) during this shift...measured by pros and myself.
soyjer
NAXJA Forum User
- Location
- California
Yes, that is similar to my theory...that my TC turbine is somehow spinning up in Neutral faster than normal...that's why I asked others to try this test. As I posted above:
DIAGNOSIS CHART shows many possible reasons for "HARSH ENGAGEMENT FROM NEUTRAL TO DRIVE OR REVERSE", but if I eliminate the ones that involve driveshafts, differentials, etc. and the more obvious ones that have been checked by multiple mechanics (such as motor mounts, which I will recheck), this is what is left:
Band Misadjusted - Adjust rear band.
Valve Body Check Balls Missing - Inspect valve body for proper check ball installation.
Clutch, band or planetary component Damaged - Remove, disassemble and repair
transmission as necessary.
Converter Clutch Faulty - Replace converter and flush cooler and line before installing new converter.
soyjer
NAXJA Forum User
- Location
- California
If installing a shift kit could cause this problem (that, remember, never happens as long as I don't pause in Neutral), then I guess that I'd have to hear from someone with a shift kit to know for sure...so far I haven't heard of this happening to anyone with a shift kit, but that just means that I haven't heard about it, of course.
If you are saying that installing a shift kit "on top of" another shift kit could cause this problem...then that would require inspection of the valve body to determine, I suppose.
soyjer
NAXJA Forum User
- Location
- California
I should add that the 2nd transmission shop suspected a spike in line pressure, so checked specifically for any possible spiking, and found none.
Heavyopp
NAXJA Forum User
- Location
- Middlesex, NJ
Or another aw4 -- plenty to be found for cheap
soyjer
NAXJA Forum User
- Location
- California
OK, thanks for confirming...that seems to be normal, which answers what I wanted to know.
For anyone else that is curious, devildog0 posted this video, which I believe shows what normal looks like:
http://youtu.be/PNGhN05is_w
lawsoncl
NAXJA Forum User
- Location
- North Idaho
Yeah, I saw that and was wondering why his Jeep was moving forward and backward went he shifts into gear. Like his back breaks aren't working.
devildog0
NAXJA Forum User
- Location
- Hunt County Texas
