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Matt, Mechanical Engineer
Category: Jaguar
Satisfied Customers: 21707
Experience:  BEng hons Mech engineering, in auto industry 22 years
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Jag x-type year 05 91000. Knocking sound on accelleration.

Customer Question

Jag x-type year 05 91000. Knocking sound on accelleration. Have had the injectors replaced and mapped . Made not difference in fact if anything worse
Submitted: 2 years ago.
Category: Jaguar
Expert:  Matt replied 2 years ago.

I'd check the connections to the EGR valve, if either the vacuum pipe of electrical connection are damaged / corroded then the EGR can be on all time which certainly will hurt performance. Its also possible that its a fault with the EGR valve so its worth removing the valve and cleaning it out with brake cleaner, if it looks particularly clogged then replace it.

Customer: replied 2 years ago.

Then replacing the injectors was not the answer

Expert:  Matt replied 2 years ago.
Hello David

well it was the obvuous thing to check I would say

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