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rpmdiag
rpmdiag, Tech and Instructor
Category: Jaguar
Satisfied Customers: 7343
Experience:  Since 1975
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I have a 2003 Jaguar XK8 with 82k mi. With auto trans. The

Customer Question

I have a 2003 Jaguar XK8 with 82k mi. With auto trans. The trans is shifting speeds rather harsh. It has a clicking sound when entering first gear. I have been told this could be the fault of the computer modgual. What do you think?
Submitted: 5 months ago.
Category: Jaguar
Expert:  rpmdiag replied 5 months ago.

Hi, I'm Ron and I will be helping you today.
Stand by for a moment while I prepare your answer.

Expert:  rpmdiag replied 5 months ago.

Here’s the sequence of events I follow:
Check fluid level and color. Make appropriate repairs.
Check shift solenoids with a scan tool in bidirectional mode if
applicable. Shift solenoids are inside the transmission and this is
the easiest way to check them.
Drop pan and inspect for excessive metal shavings inside pan.
Check valve body and clutches visually.
Hopefully you may not have to go this far, maybe you just were a
bit low on fluid.

Thanks, Ron

Expert:  rpmdiag replied 5 months ago.

If you are satisfied with my answer, I would greatly appreciate a 5
star rating now and I will still assist you after you have rated me
too if another question pops up. I don’t get credit for helping you
until you rate me.
Thanks again, Ron