Major Issues With 99 WJ Limited - Page 3 -
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post #31 of 34 Old 09-14-2013, 07:49 PM
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2000 WJ 
Join Date: Sep 2009
Location: Cross Lanes
Posts: 6,417
Originally Posted by 99WJLimited View Post
So I replaced my TPS and the input and output speed sensors and also the pressure sensor in my tans and so far no codes. To my surprise everything seems to be functioning better than the day I bought the WJ with shifting smoothness. at this point all seems good and will be waiting to see if I throw any new CEL codes. Unfortunately I cant tell you which one seemed to fix the issues I was having since I replaced all them in one shot. I pulled all the sensors from a 2000 Durango which had the same trans in it at a local Pick and Pull Junk yard. Go figure it was the first time there that they only had models before the WJ and the 45RFE was introduced in the first year of WJ's (99). I am hoping that I just got lucky today. I will keep an eye on it and keep updating if there is any changes in the near future. Thank you to everyone who replied to try and help me correct this issue!
Any updates? Does your trans still run well? I have the same P1728 code on mine, which is a replacement transmisison (has had the code since we put it in).


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post #32 of 34 Old 11-16-2013, 04:37 PM
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2001 WJ 
Join Date: Nov 2013
Location: Provo
Posts: 95
I would like an update on this as well, I just got the P1728 code on my transmission

the solenoid pack, input and output speed sensors, transmission filters, fluid and TCM have all been replaced

I really don't want to have to replace the transmission
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post #33 of 34 Old 11-23-2013, 09:23 PM
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2001 WJ 
Join Date: Nov 2013
Location: Provo
Posts: 95
well i was able to get rid of this code on my jeep.

I ended up dropping the pan again, replaced both transmission filters, and both speed sensors, put it all back together and filled it up with about 8 quarts of ATF+4 since the old transmission fluid smelled really burnt. and now it's running with no problems!
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post #34 of 34 Old 12-18-2013, 01:28 PM Thread Starter
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Join Date: Mar 2013
Location: Saint Petersburg
Posts: 76
Sorry for the long delay. Yes it seemed to have fixed it and I have had no issues since then!

99 Grand Cherokee Limited 4.7 45RFE Quadra-Trac II Dana 30 Dana 35 Firestone Destination A/T 245/70R/16
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