While trying to go through the teaching process I had the e brake set and holding the brake pedal down. When revs were increased in drive during the process the car lurched and I instinctively jerked the e brake harder on
I guess I pulled it to hard because now I cant raise it far enough to get it to release with the button.
Maybe have to limp it to a lift and release some tension at the brake drums.
Any Ideas appreciated.

 

Dennysjag, look at Chilly Phillies excellent instructions on rear bearing replacement. Part of that job is removing ebrake cable.

See his photos of ebrake adjuster under car center, in front of rear wheels.

Looks like a great spot to loosen the nut (use compressed, lots of spins involved), should make release of the lever in cabin manageable.

Years of use have already marked where the nut sits with proper adjustment.

I hope this helps if No One has better idea.

John

 

Its a ratchet system in the cabin of the car that you have jammed. The button on the top of the brake lifts up a lever freeing the cog.

If you lift up the surrounding leather boot from the bottom, it just pulls upwards but do it carefully. On the inside edge you have the cog. Spray it with WD40 etc. Take your phone camera and take a photo so you will see what your aiming for. You may also be able to pry the lever bit out of the cog.

Will try and find some photos for you.

Update. I had someone with a similar problem to yours. This was my reply, you may find it useful. http://www.jaguarforum.com/showthrea...=1#post1073297

 

I have a EPB on my XK; you have a mechanical Parking Brake on your XK8. What 'teaching process' were you following?

Graham

 

I think he may have posted on the wrong forum??

What make, model of car do you have the problem with? Is it an XK8/R X100?

 

I was totally confused about this as i always read ebrake as meaning electronic brake, ie., push button handbrake of which the X100 doesnt have. However I've later found that it is also used to mean emergency brake but as for teaching process, thats a new one on me.

 

I am slowly getting there. E brake read emergency brake not electronic brake? What we in the UK call the handbrake?

Is he a driving instructor teaching someone? Would be helpful though if he would clarify or has he solved the problem and not bothered to tell us?

 

Nope it looks like he has a 2000 xk8 convertible

 

I have been fighting with an erratic idle. The process is outlined somewhere mon this forum.. Cant really tell you where I found it.
The Idle on cold start drops too quickly and I get miss fires.. Almost always on # 8. I have another 2000 xk8 that I am basing these assumptions on.
On cold start it revs to about 1200, then steps down tp 975 then drops down to normal 675..

 

The drop in idle speed is normal, I would say that your issues are around cylinder 8. Plug/coil would be the first to look at, the 'process' that you talk about isnt going to solve that

 

Pleased to see you back to resolve the questions about which model you have and what you are trying to teach it.

Have you been reading about the battery reconnection procedure for the 4.2 litre models and allowing the ECM to learn the idle values?

1. Start the engine and allow to idle until the engine reaches normal operating temperature.
2. Switch the engine off.
3. Start the engine and allow to idle for approximately two minutes (this will allow the ECM to learn the idle values).
4. Apply and hold the brake pedal, select drive and allow the engine to idle for a further two minutes.
5. Drive the vehicle for approximately five miles/eight kilometers of varied driving to enable the ECM to complete its learning strategy.

If so, it doesn't apply to the 4.0 litre models.

Graham

 

Yes I understand the idle speed reduction. The coils have been replaced the plugs have been replaced. It only occurs on cold starts. At normal operating temps no misfire.. It has been plaguing me for months.. My daily driver is also a 2000 xk8. It always works fine

 

That would suggest a faulty ECT (Engine Coolant Temperature) sensor or IAT (Intake Air Temperature) sensor.

Graham

 

But if its specific to one cylinder then the problem is with that cylinder. No point chasing anything else, if you've eliminated plugs and coil then you've only got compression/valves or the LV side of the coil including the ignition module.

 

It does get random miss fire cylinder codes all an the left bank. mostly #8 when cold. Coolant temp sensor changed mass air flow changed.. I assume the air intake temp sensor is in the mass air flow sensor. If there is another temp sensor I don't know where to find it.. Feel kind of stupid for falling into the parts changing mode, but here I am

 

The o2 sensor for that bank may be reading out when cold? just a thought?