How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Richard Your Own Question
Richard, Jaguar Technician
Category: Jaguar
Satisfied Customers: 15555
Experience:  12 years at a Ford/Lincoln Mercury and Jaguar dealer as technician and shop foreman.
Type Your Jaguar Question Here...
Richard is online now
A new question is answered every 9 seconds

I have a 01 xkr. i have had an ongoing problem with the

Customer Question

I have a 01 xkr. i have had an ongoing problem with the restricted performance coming on. We change the coils and its fine for about 2 months then rp starts coming on more often. my mechanic who specializes in jags has changed the coils 3 times in the last 3 years. hes ran every test possible and the engine shows no sign of any other problem. we just cant seem to figure this out so we just keep changing coils. help
JA: Will the headlights turn on? Is the battery fully charged?
Customer: Yes
JA: Are you fixing your XKR yourself? What have you tried so far?
Customer: no , i take it to my mechanic who is known as the best in town. we change the coils and its perfect for awhile and then the same rp problem
JA: Anything else you want the mechanic to know before I connect you?
Customer: thats everything. the car runs perfect until rp comes on
Submitted: 11 months ago.
Category: Jaguar
Expert:  Richard replied 11 months ago.
Do you know if it keeps failing the same cylinder? Were Jag coils used?
Customer: replied 11 months ago.
im not sure about the cylinder. I did not use Jag coils.
Expert:  Richard replied 11 months ago.
OK I have seen some issues with aftermarket coils on these vehicles. First we need to know what the current stored fault codes are. We will need to have the vehicle scanned again for the stored fault codes. I recommend you go to your local parts store as they should have an OBD II scan tool you can use to read the codes. It will be a P followed by four digits such as P0351. Let me know.
Customer: replied 11 months ago.
ok. i will get the codes and let you know. thank you
Expert:  Richard replied 11 months ago.
OK sounds good