What caused restricted performance

Asked by Anrio Oct 15, 2020 at 04:55 PM about the 2003 Jaguar S-TYPE 3.0L V6 RWD

Question type: General

What causes restricted performance without a
engine light showing on dashboard? Where do I look
at first to fix the problem?

2 Answers
159,315

Bob answered 4 years ago

There is a fault in the system which reduces power to limit damage. It needs to have a qualified mechanic look at it.

Mark helpful

F_O_R answered 4 years ago

A partially plugged up cat can restrict performance but not set a code. A muffler shop can do a back pressure test on the cats.

Mark helpful

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