NO NO NO !!!!!

Put everything back together precisely, even did a new thermostat, and radiator hoses, car is stalling and bucking.


The ECM says both knock sensors are bad,restricted performance, I didn't even touch the knock sensors! from the coolant valley hose leak. what could of caused them to go bad?

The wiring seems fine to them, I just had to remove everything again!
And buy a whole new seal kit, AGAIN

.Darn this car

 

The knock sensors are known for failing if they have been covered in coolant - fairly common scenario. These cars can try your patience at times.

 

Ok, removed the two sensors, I have the screw in type.

The sad news, not many of these sensors are around compared to the newer style sensors-non screw in type.


Found two units and ordered them.

Jaguar told me to rtv the threads and top side where the wiring enters and I will never have this problem again.The threads had nothing on them, so the coolant got into the microphone and ruined its tone announcements to the computer.

That brings some relief. I wish Jaguar would of mounted these puppies in another location.
I was also told my car will run better as the old style sensors had a flaw that mistaken other noises in the engine compartment as knock and would retard the timing.

 

ok the parts are here.Assembly begins soon.

 

okwhat a journey.I must say its very important to be gentle with our connectors, but I
1.Removed the old knock sensors with a 24mm socket and breaker bar.
Installed 2 new updated sensors with rtv around the thread in case the coolant hoses ever blow again, the sensors will be fine.
Installed a new thermostat and associated hoses.

2. Removed all 8 coil packs and replaced them with 8 new coil packs,and new
plugs with the proper gap set.

3.Cleaned all the coolant out of the valley and coated the new hoses with a lil vaseline, and also removed rust and scale out of some, and sanded some off the nipples they go on to.

4.Hot tanked the intake, installed new gaskets all around, thermo coated it as well. Burped the system out of all air.

The kitty is back !! MEOW!!!!!!TAKE A LOOK AT THAT MANIFOLD WOW

 

Ive read a lot of post where xk8/xkr owners develop a coolant leak at the throttle body hose nipple.

This is due to corrosion on the nipple that has cooked itself inside your hose.

You have to use a gun cleaning brush to get it off the inside of your hose, with brake cleaner.

Then sand the nipple until the scale is gone.

Next apply just a smooth thin coating of rtv on the nipple and inside the line, and you'll be fine.

Failure to do this will result in that dreaded throttle body leak and another teardown.