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Car Forum / Jaguar Cars / September 200488 XJ40 Torqe Convertor Noise
Hi, Our 88 XJ 40 VDP has developed a loud buzzing noise, kinda like a bearing or a power steering pump thats out of fluid. Its worst upon start-up, and makes an "out of round" (like a warped rotor) rubbing noise briefly, but gets better after warm-up. Even so, it will still buzz loudly when going slow or upon gear-change. I traced it down using an automotive stethescope, and it is loudest at the torque convertor, so I suspect thats the culprit. The transmission is full of fluid, and it doesnt have that many miles since the last trans. fluid/filter change.. Was wondering if anyone had any experience or ideas with this. Thanks, Nathan Just trying to get my post unburied from under all the homosexual discussion posts. Any help with my problem highly appreciated. Best Regards, Nathan O.k., my transmission has stopped pulling. Its like neutral in all gears now. The noise (described in my first post) got worse and I limped home slowly, then nothing, wont pull at all now. I still suspect a broken torque convertor, but am open to advice. Regards, Nathan Hi Nathan, Log on to http://forums.jag-lovers.org/index.php3 and ask the people there. They know much more about Jaguar there than the people who are here. Pepe > Hi Nathan, > [quoted text clipped - 5 lines] > > Pepe And the only thing you seem to know is.. http://forums.jag-lovers.org/index.php3 Contribute or leave. >> Hi Nathan, >> [quoted text clipped - 10 lines] > >Contribute or leave. Maybe that's the best answer. Try opening your mind up a bit. You may find that you become a happier person. > >> Hi Nathan, > >> [quoted text clipped - 13 lines] > Maybe that's the best answer. Try opening your mind up a bit. You > may find that you become a happier person. Yes I will work on my presentation skills, however, Pepe has made it a ritual to bash this group and redirect. I think that Jag lovers is a good resource, but it surely is no holy grail. In fact I have read some recommendations that are not wise. For instance: "Clamp the brake hose while retracting a caliper" is pure foolishness. Clamping a braided brake line will damage it; this is why you are told not to let the caliper dangle when servicing your brake pads. Imagine your hose bursting in an emergency. Pepe may or may not have chosen the correct words, and this I realise. But to discount our knowledge and experience as owners and redirct questions is no courtesy or compliment. Especially if it is a habit. If we are all dumb then why is he here? Pepe, should give us a little more credit. B.D. >> >> Hi Nathan, >> >> [quoted text clipped - 33 lines] > >B.D. Maybe he's lurking to see if he can help we, the dumb owners. ;-) Anyway, well stated, I may have been a bit to brash myself. Al B.D. and Al Marzo. Sorry if I expressed myself in a way that hurt you feelings. I don't doubt your knowledge and I'm happy that you are out there to help other Jaguar owners. Maybe I was a little too short in my answer to Nathan but. My first advise to new people use to be, go and search the problem where the most people are = JagLovers Forum! Some people are very lazy and just want to have an answer right away. I want people to help them self in the first way and then ask questions in a way that will help them to solve the problem. There are so many basic things you must know about before you can answer Nathans question or solve his problem. For example; A friend of mine borrowed my car Jaguar XJ40 And drove it to the village, then he called me back and told me he couldn't get the car to reverse when he should get out of the parking lot and go back to my office. "Something must be wrong with the gearbox, I can't drive forward and it will not shift to "R", have you checked the oil level?" I was scarred and took another car down to the village to see what was wrong with my darling. When I entered the car and tried, all was OK. He had not had the foot on the brake pedal and was not able to move the gear shift! The front wheels was on the edge to the sidewalk, that's why he could not drive forward! Over to Nathans problem. It might be the front pump/torque converter drive dogs that have sheared. It might be the bolts holding the converter to the flywheel that has sheared. I suggest that you (Nathan) get under the car and take a look at the Converter. First check the bolts fitting the converter to the flywheel. If they are ok, then prepare yourself for taking the transmission out of the car. The only way to see if the converter is destroyed is to take of the transmission. I assume the following: 1.. There is oil to the right level in the transmission. 2.. There is no oil under the car. 3.. The wire from the gear stick to the transmission is connected. Pepe Jaguar XJ40 1994 Jaguar XJS 6.0 1995 > B.D. and Al Marzo. > [quoted text clipped - 72 lines] > > Jaguar XJS 6.0 1995 It's ok Pepe,thanks for your reply. You are absolutely right, many people dont help themselves and rely on other just as you have mentioned. Mr. Bates had done his homework, and pinpointed the noise to the torque conver housing. This is why I chose to assist him; he is not a typical time waster. Answering questions by long distance is a most frustrating task, especially if the person can not explain symptoms correctly. Sometimes you give them multiple solutions and they only perform one remedy, then return with "What now?". "Well what about the other solutions?"...no reply. I work in the technology sector and I am constantly being bombarded by customers with questions that can be answered by opening their owners manual. It got so bad that I had to implement a $1.40 per minute charge if the call lasts over 5 minutes. The results of my new charge has reduced the number of "Idiot" calls I deal with. Objective completed- customers work to find answers themselves, and now I see that this was your objective as well. I would like to take this time to say that I am sorry if I have offended you. I like this Newsgroup and I want it to be a complement to the other Jaguar sites, not compete with them. Mijn liefde naar Nederland. Mijn moeders familie is van Wageningen.(sry for the poor grammar.) Hagel, Tulips, Leiden cheese, Grolsch.... what more would a man need? A Jaguar! Best Regards, Blake Dodson Ok, No problems! Friends?! Lets help the guy Btw I'm from Sweden. Pepe Jaguar XJ40 1994 Jaguar XJS 6.0 1995 > Ok, No problems! > Friends?! Yes of course! > Lets help the guy Done > Btw I'm from Sweden. Big oops! My mistake. There are many small islands I am eager to explore in Sweden /Finland. Perhaps I could learn your toungue as well. ;-) Blake > O.k., my transmission has stopped pulling. Its like neutral in all gears > now. The noise (described in my first post) got worse and I limped home > slowly, then nothing, wont pull at all now. I still suspect a broken > torque convertor, but am open to advice. > Regards, > Nathan Nathan, The writing is on the wall...it is such a chore to remove the transmission it would be silly to not re-build/re-place it when you get it out. I would find it hard to believe that a failed torque convertor is the problem, but not impossible.There is a spraque clutch inside convertor that do fail. The symptom of this is slow acceleration but everything seems ok once up to speed. No rebuild typically needed. Perhaps the blades have sheared off inside? Well in this case you will have metal inside all the workings of the trans... rebuild. Broken flex plate? I dont think you would dare keep you engine running in this case. What else is in the convertor assembly? Well a bushing and the pump. If the pump has failed the the result will be metal throughout the trans... rebuild. Once you open the case and peer inside to see what has failed...rebuild. You can install a pressure guage to see what you system pressure is, and that is a firm foundation to begin building upon. I am not tying to put the fear of death into you, but automatics are typically not serviced but renewed. Debris floating through the system will cause failure later, and if you replace your transmission be sure to have the cooling lines cleaned out with solvent or you'll be pulling the darn thing back out again. Here is a link to an inline transmission filter. http://forums.jag-lovers.org/index.php3 Cheers, B.D. Thanks Blake! Everything you said sounds right. In the past, on Chevys, Ive had automatics hang between gears and act screwy from a clogged filter, and modulators cause problems on even older models. But this one has the mechanical "noise" which indicates something "broken" to me. I suppose Ill just look for a tranny out of a wrecked car, or just sell the car "as-is" on ebay. Dont even know what its worth, but its a pretty slick looking car for its age, has all the service records back to day one, etc.. Thanks for the info! Regards, Nathan Just had my General Motors product's gearbox rebuilt and torque converter replaced. It had boiled all its oil out on a trip home one night. Had the same symptoms you describe. Are your oil levels OK? Graham > Thanks Blake! Everything you said sounds right. > In the past, on Chevys, Ive had automatics hang between gears and act [quoted text clipped - 8 lines] > Regards, > Nathan > > O.k., my transmission has stopped pulling. Its like neutral in all gears > > now. The noise (described in my first post) got worse and I limped home [quoted text clipped - 41 lines] > Cheers, > B.D. LOL The joke is on me!!! Here is the link to the filter!!!! http://www.emergingent.com/subpage1Magnefine.htm |
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