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I have a 2004 Jaguar XJ8. When the engine is cold and I am…

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I have a 2004...

I have a 2004 Jaguar XJ8. When the engine is cold and I am driving, I enter the last gear at like 50/60 mph, the throttle fluctuates up and down until the engine is warm then it is all ok

Mechanic's Assistant: Sometimes things that you think will be really complicated end up being easy to fix with a Jaguar. The Jaguar Mechanic I'm going to connect you with knows all the tricks and shortcuts. Are you hoping to fix this yourself?

No. It is at a Jag expert (so to speak) and he hasn't figured it out

Mechanic's Assistant: OK! The Jaguar Mechanic will help you with the diagnostics so you are sure to get this fixed right. Is there anything else the Jaguar Mechanic should be aware of about your Jaguar?

No. My car only has 40k miles on it, it's like new

Mechanic's Assistant: OK. Got it. Last thing - JustAnswer charges a fee (generally around $18) to post your type of question (you only pay if satisfied). While you're filling out that form, I'll tell the Jaguar Mechanic about your situation and then connect you two.

Submitted: 2 years ago.Category: Jaguar
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Answered in 6 minutes by:
2/12/2016
Jaguar Mechanic: Richard, Jaguar Technician replied 2 years ago
Richard
Richard, Jaguar Technician
Category: Jaguar
Satisfied Customers: 15,804
Experience: 12 years at a Ford/Lincoln Mercury and Jaguar dealer as technician and shop foreman.
Verified

Hello. Your problem is most likely the torque converter slipping. First we would need to. Check the fluid level and condition as we could also have a leak from the pan or cooler pipes. Next the transmission control module will need to be reprogrammed to see if the surge is corrected. Let me know

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Richard
Richard
Richard, Jaguar Technician
Category: Jaguar
Satisfied Customers: 15,804
15,804 Satisfied Customers
Experience: 12 years at a Ford/Lincoln Mercury and Jaguar dealer as technician and shop foreman.

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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