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Matt
Matt, Mechanical Engineer
Category: Jaguar
Satisfied Customers: 22252
Experience:  BEng hons Mech engineering, in auto industry 22 years
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2001 X TYPE 3-0 V6 MANUAL.GEAR PROBLEM. when cold car shift

Resolved Question:

2001 X TYPE 3-0 V6 MANUAL.GEAR PROBLEM.
when cold car shift into gear ok-bit notchy.
after about an hour of driving car is very difficult and sometimes wont change gear.turn off ignition and it goes into gear.had a garage check it but because the car was tested cold they said they could not identify the issue.
Submitted: 3 years ago.
Category: Jaguar
Expert:  Matt replied 3 years ago.
Hello

the first thing to do is bleed the clutch hydraulics and ensure that you replenish the all fluid in the system and get any trapped air out

I favour having a clear hose from the nipple to a jar 1/2 full of old fluid and with the nipple closed your assistant pushes the pedal up and down a few times, then holds it down whilst you then crack open the nipple and close it again whilst fluid is still flowing.

If this doesn't help then next check the gear linkage for any worn bushes or pivots as any lost motion means reduced effort at the gearbox and replace as necessary. Ideally have your assistant move the gear lever with you watching the linkage and see if you can spot where there is any excessive play or lost motion.
If its a cable type linkage check along the cable lengths for any damage or signs of heavy wear / fretting, if you find any replace the cable. There may be some adjustment on the cable tension at the gearbox end (depending on the year) and the cable should be tensioned so there is a minimum of slack but not so its taught

Then check gearbox oil levels and if its not been changed in the last 20K miles then drain it off and fill with fresh. I can strongly recommend the use of Castrol Syntrans 75W90 (was called SMX-S) as I've known it help with shift issues on many manual gearboxes

If you still have issues with the hydraulics and its good after bleeding but then gets worse after a few days / hours, then I'd try leaving the clutch pedal held down overnight by bracing the pedal against the seat base with a piece of wood or similar, this is to try and force the seals inside the slave to take a set in the right orientation as over time they can shrink and draw air back in when you take your foot off the pedal.

This shrinkage isn't enough to leak any fluid but the gap is big enough to draw air in (gas being harder to seal than fluid) if this doesn't work I'm sorry to say that the slave cylinder is going to need changing.

also if the fluid is dark in colour this is a sign the seals are breaking up
Matt, Mechanical Engineer
Category: Jaguar
Satisfied Customers: 22252
Experience: BEng hons Mech engineering, in auto industry 22 years
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Expert:  John-cssm replied 3 years ago.
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Expert:  Matt replied 3 years ago.
Hello

can I help further?