Richie, I bought my first LS about 2 weeks ago, 2004 with everything except the nav. screen. I loved the car so much that I bought it with a hard / firm shift from 1st to 2nd gear. I have since learned that these have this as a problem. I called the dealership back and discovered that they had the transmission worked on before I bought it and scaned the invoice and emailed it to me. (to big a pdf file to attatch here) but in short they replaced the solenoid block, filter (fluid) and transmission mount.
So in more searching I found a post from a guy who discovered that a 4 dollar spring fixed his issue (similar symptoms) and I will past his post here at the bottom. I don't think that this spring is in the solenoid pack and probably needs to be sought out to have examined or replaced. I plan on speaking with a shop about this particular part when my car gets out of the body shop. (bought mine with some damage). Hope this helps..
if you come up with a PO795
i did find this...
on this forum link
http://www.jaguarforums.com/forum/showthread.php?t=10521
The <$5 spring was the fix. This is the one you most likely need if you have the dreaded "Gearbox Fault" message and P0795 OBD2 code on a 5R55N transmission.
http://www.transmissionpartsusa.com/5R55N_4_3_Pre_stroke_valve_springs_56947J_S1_p/400-056947js1.htm Mine was broken into 4 pieces! It amazes me that a $4.45 spring could kill the transmission of a $30-40K automobile! If you want to see where it lives in the A/T valve-body have a look here:
http://sonnax.com/instructions/56947J-S1-IN.pdf and here:
http://www.sonnax.com/announcements/56947J-S2.pdf
I took it to a local transmission shop. Since it is a normal Ford transmission they had seen it before and were not afraid to work on it. They changed the spring out, refilled with 7 quarts of Mercon V ATF fluid (still some in the TC area that did not drain - filled hot according to Ford/Jag specs), put in a new AT filter and I had them suck out the rear-end lube and refill it with synthetic. Total it cost me $425 with tax. $75 went into the rear end. A good lot of the cost was labor. It was a 3 man job at times getting the pan down and then refilled again.
I watched most of it and the normal fill tube on the transmission would not accept their pump tube. They had a smaller adaptor but it was still too large to fill without a lot of waste through the bottom "filler tube". Finally, they found another plug at the back of the AT body and filled from there and checked flow and fill levelthrough the normal "fill plug". They also had to drop the valve-body to get the brokenspring out. That was a job. But I think I could do it now that I watched them. The clip was on the top side. So the valve body had to come out to access the clips. But that was good, because then they could check out all the other valves and springs more completely.
I wish I had not needed to spend the money on a car I had just purchased, but I was thinking I would change out all the fluids when I bought it anyway. Now I know for certain the ATF and filter are fresh, the rear-end is fresh and the drive train should be good for at leastanother 70-80K miles. They suggested chaning out the ATF fluid/filteragain at the next 30K interval. I may try that myself, now that I watched them do it all once! Just dropping the pan and replacing the filter and fluids would have run ~$150-200. So changing out the valve spring and checking all the rest was not too much more.
I think I am satisfied. She is running sweet again. The "warranty company" would cover none of it. I think I am going to contact the seller tomorrow and persuade him to pay half!
I hope you never have the dreaded "Gearbox Fault"and Solenoid C error. But if you havethe 5R55N transmission and you get those errors, thenyou likely have the same problem.(If I could get pics to post, I would show you my 4-part $350 spring!)
I feel like going out and driving her some more, just because I can!!!
Greg
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you might want to copy the text of this post and paste it into an email to your self.. that will make the links clickable...
this is the reason
Read more:
http://forums.automotive.com/70/843...ifts-smooth-cold-har/index.html#ixzz1S5fhGafv
