Last post on Jul 10, 2013 at 7:58 PM
You are in the Jaguar XJ-Series
What is this discussion about?
Jaguar XJ-Series, Jaguar XJR, Sedan
#72 of 95 Re: transmission problems [itsmepierre]
Mar 01, 2010 (5:35 am)
Once the transmission slips, its doesn't get better with time. I agree with you. its something other than transmission mechanical. If it is the clutches slipping ( replace transmission) you will eventually not be able to move after a stop. Do you have anyone you can trust to read the error codes? Does the car ever warn you of a "transmission fault" on the dash board?
#73 of 95 Re: 1995 Jaguar XJ6 transmission problem [drcures]
Mar 01, 2010 (6:30 am)
The bulbs are cheap. You have to remove, gently layers of fascia to get to the bulbs. Its a good idea to replace them all while you are in there.
#74 of 95 2000 XJ8 Intermittent Trac Not Available/Loss of Power
Mar 18, 2010 (4:18 pm)
I have a 2000 XJ8 with 60,000 miles. The car has been completely maintained by the dealer. Before this week, I have had about 10 occasions where the car would loose power and go into what people describe as limp mode. Most of the time I simply see a "Trac Not Available" message, but no amber or red transmission warning light. I usually just turn the car off, wait a minute and crank it up again. I usually don't have a recurrence for days or weeks, it's like rebooting your computer. It seems to happy on cold days. I took the car to the dealer when this first happened, but they were unable to see any diagnostic codes because there were no transmission lights or message were displayed. Then four days ago, I had to pull over six times on the way to work. This time the red transmission symbol came on and stayed on, so I took it to the Jag dealer. They say it needs a new Throttle Body and a wiring harness for $3,200. I would pay the price if I know that their diagnosis is correct. I think it's a sensor of some kind, because of how the problem comes and goes.
I have read a lot of entries on different sites and the common theme seems to be that many issues are being misdiagnosed.
Any feedback would be appreciated.
#75 of 95 Re: 2000 XJ8 Intermittent Trac Not Available/Loss of Power [keith2000xj8]
Mar 18, 2010 (4:49 pm)
My 2000 xj8 also has the traction not available light come on, and I do nothing about it, and it's fine that way. British motors in san francisco wants to charge me 2000. bucks to fix that. But I leave it alone.
I also got the limp home bit, and had to change my transmission and also some parts connecting to my shifter. No way out of it, and it happened in the high 60 thousands. A rebuilt transmission is supposed to have better internal parts...some of which were plastic, and now metal, I believe. I spent 5 grand, but now have a new trans....a good deal compared to trying to get rid of the car, and buy another used car. The ladies love the thing...I'm sorry I do not know what a throttle body is, but I recommend you call John's jaguar here in san francisco, and ask about it, and frequency of problems with the 2000 XJ8. They are great guys...and do great guaranteed work.
#76 of 95 Re: 2000 XJ8 Intermittent Trac Not Available/Loss of Power [keith2000xj8]
Mar 18, 2010 (4:52 pm)
This is my second comment...if it was just a sensor problem, your car would not go into limp mode. Try limp mode in san francisco, where the car is really in...what 2nd gear when starting...and you're going uphill...brutal.
#77 of 95 Re: 2000 XJ8 Intermittent Trac Not Available/Loss of Power [keith2000xj8]
Mar 18, 2010 (6:26 pm)
I WOULD CLEAN THE THROTTLE BODY-ITS A PRETTY SIMPLE JOB JUST TAKE YOUR TIME. THEN I WOULD CHECK YOUR CONNECTIONS FROM THE THROTTLE. MAKE SURE YOU HAVE NO MOISTURE AROUND THE FIREWALL- TAKE THAT PLASTIC MOLDING OFF. CHECK THE WIRING TO THE ABS MODULE FRONT LEFT OF ENGINE. I THINK YOU HAVE A WIRING OR CONNECTION ISSUE. BECAUSE AS YOU SAID ITS INTERMITTENT AND DRIVE FINE WHEN NOT ACTING UP. TAKE THE GROUND CABLE OFF THE BATTERY WAIT A MINUTE THEN HOOK IT UP. IT SHOULD RESET MOST OF YOUR ENGINE TROUBLE LIGHTS. your DOING THE SAME THING THAT THE REPLACEMENTS WOULD DO BUT A HELL CHEAPER. Good LUCK!! THE SPEED SENSORS GO RIGHT INTO THE WHEEL HUB IN THE BACK. THER EASY TO SEE YOU CAN REACH THEM W/O JACKING THE CAR. MAKE SURE THAT ROD DEBIS DIDN'T KNOCK A WIRE LOOSE. THAT WOULD AFFECT YOUR "TRAC"
#78 of 95 99xj8transmission faiure
Oct 04, 2010 (8:59 am)
I have a 99xj8 I bought with 61000miles on it it drove fine for about a month,on a extended trip it cut out and went into limp mode, trans failure traction failure and ABS.lights came on after checking fuses I left the car and had it towed home(100 miles)when the car was returned it ran fine a month later same prob.pulled over shut it off for about 15 min.started up and ran fine for about a month now I have the same problem but more frequently,almost daily,tried disconnecting ground wire in hopes of rebooting computer,did'nt work'can anyone givec me a clue where to go from here besides a jag dealer?Al in Mass.
#79 of 95 Re: 99xj8transmission faiure [aaronburr]
Oct 04, 2010 (11:50 am)
THEre are sellers on ebay that sell repair to the computer unit for the abs system. That unit, when standing at the front of my 2000XJ8, is at the right and front. It's front half seems to come off...and I believe that thing gets sent to these guys, and they charge about $60. bucks to repair it. You need to cover the area that is exposed when you do this really well, to prevent dirt from getting into it...and also cehckto see that you have all other brake function still intact. I am about 80% sure that this may repair your ABS, and if it does, you'll save about $1500. You can drive with your ABS system down, and I have for two years. "When the car was returned" you say...returned by the tow company, or did you have it looked at? Hate to say it, but I had to get a new rebuilt transmission at 66,000 miles. Supposedly, the rebuilts have a better part that used to fail...labor and part will run you $4500 or more. But then again, I paid 9 grand for my car, and now have a new transmission. andre in S.F.
#80 of 95 Re: 99xj8transmission ABS HELP
Oct 04, 2010 (11:54 am)
Type in JAGUAR ABS COMPUTER REBUILD REPAIR on ebay and see if you get the folks that I checked out. My safari browser is acting up, or I would send you the exact url.
#81 of 95 Re: 99xj8transmission faiure [aaronburr]
Oct 04, 2010 (6:41 pm)
I presume that you would like to know how my situation turned out.
I took my 2000 XJ8 with about 61,000 miles to the dealer after it went into limp mode several dozen times. They told me that the Throttle Position Sensor (TPS) needed to be replaced. On my XJ8, this means a $3,300 repair because the whole Throttle Body assembly has to be replaced, not just the sensor. The dealer would guarantee the part and the labor for one year. I asked them if the part could be re-manufactured. They said no, and that's when I told them that I found a company in the North East that would take my part, repair the TPS module, and send it back to me with a lifetime warranty for a $400! And that company guarantees that my Throttle Body assembly will be finished in two business days. The dealer did not seem to understand that I would gladly due without my car for about 10 days if I could save $2,200. The labor to take the Throttle body off, ship it, put it back on, replace a wire harness, and test everything was $700. So about $1,100 versus $3,300.
The dealer was reluctant to send the part for re-manufacture until they found out that they already buy their Anti-lock Brake Sensors (ABS) from the same company. They claim they did not know that they "did" work on TPS modules.
The car drove like it was brand new after the repair. Then a couple of months later, my car went into limp mode One time. I called the dealer and he said it might need to be done again. I could not believe what I was hearing. The only good news was that the dealer would not charge anything, but I would be without a car for more than a week.
I then decided to go to a non-dealer auto repair shop that works mainly on Range Rovers as sort of a second opinion. They could not replicate the problem, nor could I. They researched the Jaguar tech bulletins and thought the problem was more likely related to something in the gear shifter (center console area) or where the wire connects to the transmission, or maybe an ABS sensor. So, they ended up cleaning a little corrosion off the connection at the transmission, drove it a fair amount, and charged me a $95 diagnostic fee.
I have not had a single problem with the transmission going into limp mode since then! But there's one more thing that may have made a big difference. I have Stopped using the left side of the gear shifter that allows you to drive your Jaguar as if it had a manual transmission.
Do you you ever drive your Jaguar in this manual transmission mode?
You may also want to see if there is a Jaguar "club" in your area. If so, ask them where they take their Jags for service.
I hope this was helpful.