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Richard, Jaguar Technician
Category: Jaguar
Satisfied Customers: 15554
Experience:  12 years at a Ford/Lincoln Mercury and Jaguar dealer as technician and shop foreman.
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Jaguar XJ8: Hi, More serious issue. There is a high pitch

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Hi, More serious issue. There is a high pitch whining sound coming from the engine. It appears to be on the top, towards the rear of the engine. By turning the climate control OFF I can reduce the noise a lot. Turn on the climate control and it is worse, turn on the air conditioner it is even worse. My mechanic says it is the "pump motor" and that is a $2,400 part from Jaguar. He says this is not uncommon on cars like mine - (2000 XJ8). He is not sure if we should let it fail in the future and then replace it; or do it now. My sense is that the whining noise has gotten worse over the past several months.

Hello and welcome to

Is the mechanic recommending you replace the a/c compressor?
Customer: replied 4 years ago.

Hi Richard,


Additional investigation has led to the conclusion that the sounds I am hearing are coming from one of the fans ( I understand there are two), which maybe will fail "someday".


Therefore the recommendation is to do nothing at this point in time.


Other than this increase on "noise level" the air/heater system is perfect.


I went and got a second opinion, and got the same answer. So I am comfortable.


Thanks for your pointed question.




Bill Warren

Ok that could very well be a possibility. Let me know if you need anything else on this.
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