Hi all,
We recently purchased a 1999 XK8 Jaguar convertable. A few weeks after our purchase we had a "restricted performance" warning light come on. took it to a local mechanic who diagnosed the problem as coil packs and spark plug issues - which we replaced. The problem now seems worse...What's our next move and does anyone know a good, reliable Jaguar mechanic in the Pgh. area?

Thanks,
Mark & Joanna

 

Mark - welcome to the forum - best place for guidance on the restricted performance would be to post the question in the XK8/XKR section -

XK8 / XKR - Jaguar Forums - Jaguar Enthusiasts Forum

the techs there are top notch and always willing to help. To better assist in diagnosis - have you had the codes pulled? Advance or Autozone can read them for you and provide print out - then post any codes here.

For mechanic advice in the Pittsburgh area - the regional section can help there

 

Additionally, in the XK8/XKR section - there are a ton of FAQ's, how to's, the JTIS service manual all available for download - by far the best tool in a Jag owners tool box.

 

It's a possibility that your mechanic got the codes for cylinder misfires but replaced the wrong coils....the cylinder numbering is different for '99's versus later cars and different from the generic V8 readout at Autozone, etc. As mentioned, provide us the codes and you'll get pointed in the right direction.

 

thanks mike66 ! I dont have the code, but it says its the 3rd cylinder. If thats generic then its milabeled on the computer ?

 

You use the one on the left. I think most modern V8s use the one on the right. You can see that it would put you off by a cylinder on that #3. Good luck on your quest.