I have a 1997 jag xj6. When I'm up to say 50 to 70 mph and hit the gas I get nothing, no increase in speed or Rpms. I hit the button that shuts off the traction control and everything is good. Normal power and Rpms. Anyone know what the problem is? Pete

 

Welcome to the forum Pete092559,

I've moved your question from General Tech Help to X300 forum. Members here with the same model will be able to help.

When you get a minute, please follow this link New Member Area - Intro a MUST - Jaguar Forums - Jaguar Enthusiasts Forum to the New Member Area - Intro a MUST forum and post some info about yourself and your vehicle for all members to see.

In return you'll get a proper welcome and some useful advice about posting to the forum.

Graham

 

Offhand it sounds like you're getting wheelspin.....or the system *thinks* you're getting wheelspin and the traction control system is retarding the throttle





When this happens do you feel the throttle pedal sorta pushing back against your foot? If so, that's a sure sign that the traction control is kicking in.

The throttle cables are attached to a small motor that actually starts closing the throttle if the wheel speed sensors detect wheelspin. And, as I recall, the system also starts applying the rear brakes at the same time.




Because hitting the button defeats the traction control system


If you really *are* getting wheelspin there's nothing to fix. The system is doing what it's supposed to do.

However it seems unlikely that you'd be getting wheelspin at 50-70 mph in a standard XJ6 unless the road is very slippery and you have a very heavy throttle foot.

Finding the problem is another story. Are you getting ABS or Trac Control warning lights when driving?

Cheers
DD

 

I'm not getting any warning lights on the dash at all. I do feel the pedal pushing back against my foot, and I definitely was not getting any wheel spin. Is ok to just keep shutting off the traction control after I start the car and driving it like that , is it an expensive fix? Thanks, pete

 

I get the same. I turn off the TC, and all is well. I tried to get the wheel sensors out to see if they need cleaned, but they are locked in tight!!

 

Perfectly Ok to simply turn the system off.

Expensive fix? Hard to say until the fault is indentified...which itself can be tricky.

Cleaning and re-seating the connections at the trac control unit and ABS module will sometimes restore proper operation. Same for removing and cleaning the wheel speed sensors, and cleaning the reluctor rings as well. These efforts cost nothing but time and are a good first step before any money is spent.

Lack of warning lights suggests there are no trouble codes stored in the diagnostic system. Having trouble codes is helpful....if you have the right kind of software/scan tool to retrieve them. Most inexpensive/non-dealer-level scan tools will not retrieve ABS/TC codes or data.


Cheers
DD

 

Thank you everyone for your comments! Very helpful!

 

My next problem is I hit the valet button in the center console , now my trunk is locked, I was using the button on the console to open the trunk because all I had was a valet key( I didn't know about any of this valet button stuff) , I had a master key made and that should of got the trunk open but lock itself is stuck I find out. Now the jag place is telling me I need a key fob and have it programmed to get into my trunk. Any other ideas? A key fob is quite a bit and around 150.00 to program it. Help my golf clubs are in there! Thanks, pete

 

Only because you didn't didn't specifically mention it I'll ask if you tried the release button to the left of the steering wheel and the release button on the trunk lid itself.

Cheers
DD

 

There are a million posts on here about locked boots and the process of removing the licence plate to trip the mechanism. It's a simple enough process. Do a search for "Locked boot/trunk" and you will be sorted in no time.

 

FWIW, I don't have a switch for the Traction Control. If it's there, it's on all the time. Having said that, I have inadvertently spun the wheels on numerous occasions, especially if I push it, even slightly, from a standstill on anything other than a clean, dry, gravel free surface.

 

If you don't have a switch, you don't have TC, according to my owners manual. I checked mine and there was no switch.

 

Don't pay someone to program your fob... - X300 Key Fob Reprogramming

 

Check that you have the same diameter or rolling radius tyres front and back. If the back are smaller they will turn slightly faster than the fronts. The difference wil get bigger with speed until the system detects 'wheel spin'. If the tyres are nominally the same size and profile try pumping up the rears a bit more than the front.
John

 

I want to mention that on the Traction Control Actuator(MNA5930AA), at least on the X300, the two wire's insulation on the unit just crumbles eventually and the wires short out. I have seen this happen to several. On my own the ABS and Traction Warning lights went on. Eventually I found that the wires on bottom of the unit had shorted, but the upper end looked good. Some I have seen are bad at the top and bottom. It may be due to UV since the insulation under the black wire tube seems to be ok. I have not disassembled the unit to rewire it. I hope that the shorting did not permanently hurt something. I have not seen this problem mentioned and wanted to bring it to someones attention. Anyone with an X300 and traction control should be aware of this problem.