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Sedans Jaguar XJ-Series Jaguar XJ Transmission Questions
64 messages, Last post on Nov 26, 2009 at 7:24 AM
You are in the Jaguar XJ-Series Forum. Your Hosts are pat & karens
HELP 1994 XJ6 sedan, cherry condition, 129K miles, I have gotten thru many of the problems I read here in other categories, but my trans problem is a bit scary. I am having "slamming" or "bumping" at shift points both accelerating and decelerating on occasional start ups. Only occasional. (scary compared to normal shifting points because it snaps my neck a bit when it shifts upward while accelerating) and the transmission fault light appears, plus the brake fault light appears each time the brake pedal is pushed, signaling the likelihood of an ABS problem. I had the brakes all renewed stem to stern and no problem exists with them mechanically, but could be electrically. Was told to "forget" the brake fault light, so i ignore it, but it comes on each time i press brake. This trans problem has occurred approx. 5 times in the last couple of years and goes away when I shutdown and re start engine. Shifting gears does not help, only shutdown. I suspect electrical or computer programming issues, but not certain. I saw one message here that put the two problems together. Any help would be appreciated. Nobody in this South Louisiana area works on Jaguar transmissions except perhaps the dealers in Baton Rouge and New Orleans, which I would like to avoid as long as possible due to horror stories. I will travel to other states for quality service and workmanship. Thx, Don [OMEOMY]
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Replying to: vonda (Jun 01, 2007 12:24 pm) Where did you read that other post? I would like to go there sometime. Your post here gives me the idea that i have one or more bad ABS sensors, considering i replaced all mechanicals on brakes and the brake fault light still comes on. Could be the mechanic that replaced brakes caused the ABS sensor problem, who knows? Next step is to find a great tech and see about ABS function and replace all of the sensors if necessary. Then on to my tranny "slamming" in every shift point problem. thanks for the start in a direction wojcik! any other help is certainly appreciated. OME_OMY ...Don |
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Replying to: cartroubles88 (Jun 12, 2007 8:36 am) Here is one thing i did after putting 3 new expensive batteries in within months. I suspected that what was draining the electricity from the new powerful batteries so fast, was what is called "parasitic drain". This can be from more than one source, but i suspected the security system. I found out that it is not advisable to disable the security system, so i installed a "master switch" just under the battery. Expensive, yes, but the battery drain and replacements stopped now for over a year. That heavy duty switch becomes an excellent "security system" in itself. This is only one example of the problems to be uncovered and fixed with this 94 XJ6. Like so many Jaguar owners, i keep putting the time and money into her because i love that car. I wish someone on this CarSpace forum would tell me of their great mechanic/tech. I would call and drive there immediately with my exotic problems. (not so exotic with Jaguars, i have come to believe). Oh and i got the electrical service man that put in my new alternator (Mikes Alternator Shop), put that special "master switch" in. Hard to find these people to help. Good Luck with the 93. OME_OMY Don |
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 My search is focused on looking for a good or great Jaguar mechanic/tech. Particularly electrical/computer problems and enhancements. My experience with the Mobile Alabama Jaguar dealership and others is that...The techs that are great for newer models are not old enough to be great with my era Jaguars...1994 XJ6 I will travel long distance to any southern states particularly to find such a tech and service facility. Texas, Louisiana, Mississippi, Alabama, Florida, Tennessee, Missouri, Arkansas for example. Do YOU know one? 
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Replying to: tjb069 (Oct 23, 2007 7:00 pm) we have almost the same problem. i have had this intermittent problem for a long time, over a year. let's talk more. i have a 94 XJ6. mine is in great shape otherwise. the trans light comes on, mine starts out from the beginning with shift point "slamming" and snaps my neck, and could be causing trans damage. when it happens, i then stop, turn the ignition off, start it up again, and all is fine again for quite a while. i have not had anything done by anyone. i see by other posts here that there may be a connection with my ABS brake light coming on, i am going to investigate the possibility of bad ABS sensors on one or more wheels, replace them if necessary, and investigate perhaps a bad ABS sensor wire, and go that direction first. Then see if that stops the intermittent craziness of the trans light coming on with the slamming problem. 
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Replying to: OME_OMY (Dec 10, 2008 10:57 pm) |
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| I have a 1990 Jaguar XJ^ Vandenplas. I've had problems with starting the car, need to change the battery. The last time I was able to start the car the transmission light came on, the one that says the motor is in "limp home' mode. The car runs perfectly well and has no mechanical or transmission/shifting isssues. The light won't go off. I checked the fuses and they are fine. I heard there is a simple solution to this, but forgot where I saw it. Does anyone know how to turn off the trans light? Thank you, Anne | |
| First i would try... disconnect battery for a min.Next just drive.......pull over .....turn motor off and restart the car.A broke motor mount or trans mount will cause the light to come on.Car may need a tune up.I have owned 20 or so jags over the past 8 yr and they all done this one time or another.May want to baby it a little from a dead stop. | |
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Optional Information: 2000 Jaguar xj8 4.0 Already Tried: well it made a clunk noise when it was down shifting to 2 gear it made that noise a few times then when i came to a complete stop and then go forward it felt like it just slip and the light came on Transmission fault so i shifted to 3 gear and it did move slow but it it took a few seconds to get up to speed there is no noise coming from the tranny thanks
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