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My 2002 xk8 had a coolant overflow tank and thermostat

Customer Question
My 2002 xk8 had...

My 2002 xk8 had a coolant overflow tank and thermostat housing go bad. Replaced both but the "performance restricted" code won't clear. Tried erasing the code and diconnecting the battery. Any suggestions?

Mechanic's Assistant: How many miles on the car? How has your mileage been lately?

78 k mileage has been normal.

Mechanic's Assistant: Are you fixing your XK8 yourself? What have you tried so far?

Checked coolant sensor by bridging. It does not show low coolant warning. Just the restriction.

Submitted: 3 months ago.Category: Jaguar
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Answered in 6 minutes by:
3/26/2018
Jaguar Mechanic: peterpete190, Auto Technician replied 3 months ago
peterpete190
peterpete190, Auto Technician
Category: Jaguar
Satisfied Customers: 32,912
Experience: Auto repair Technician with 17 years experience.Past ASE and other certifications.
Verified

Hi, my name is ***** ***** I will be happy to assist with this today.In some cases, I may need more info to assist better.I apologize for any delay.
I am here Sundays through Thursdays from around 5 am to 2 pm Mountain time.If you respond and I do not respond back right away I will do so as soon as I can.

Can you tell me how you tried to clear the " Performance restricted " fault?

Let me know,thanks Pete.

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Customer reply replied 3 months ago
I USED A CHEAP CODE READER AND TRIED TO ERASE WITH THAT. IT SHOWS CODE ERASED BUT THE "RP" CODE COMES BACK.
Jaguar Mechanic: peterpete190, Auto Technician replied 3 months ago

O.k., in some cases a cheaper hand held code reader won't be able to clear out the fault code properly and this may be why it shows the RP fault still.If you can I would see if you can get the codes cleared out by a local parts stores scan tool ( usually free of charge ) or if you have any way to obtain a different scan tool to try it just to see if this is why the message still appears.

Now if the code continues to come back this indicates the computer is still seeing a fault.You would then need to fully diagnose the fault code number ( read with a scan tool ) to locate the cause and then it can be repaired from there to resolve this issue.

If more help is needed, use the reply tab to continue our conversation. If no further assistance is needed, kindly rate my service, your 5-star rating is appreciated ( should be a link to click on here or above).You can rate at any time and we can continue to work on your question as this will not close out your question.I work on delivering the best answer and help here but in some cases, it can be difficult to do without seeing the vehicle.

Thanks Pete

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peterpete190, Auto Technician
Category: Jaguar
Satisfied Customers: 32,912
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Experience: Auto repair Technician with 17 years experience.Past ASE and other certifications.

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