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Question

My 1998 xj8 is missing runnibg very rough at idle.

Submitted: 363 days and 21 hours ago.
Category: Car
Value: $9
Status: CLOSED
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Optional Information

1998 XJ8 XJ8 V8

Already Tried:
ZERO. NEED INPUT SO I DO NOT GET RIPPED AT THE DEALERSHIP. THE CAR IS RUNNING ROUGH AT IDLE (LOW RPM) AND (SOUNDS LIKE IT) IT IS MISSING AT HIGH RPM.

Posted by Richard 363 days and 21 hours ago.

Info Request

Hello and welcome to justanswer.com

 

Is the check engine light on or restricted performance light?

363 days and 21 hours ago.

Reply

NO INDICATORS OF ANY KIND. NO IDIOT LIGHTS ON THE CONSOLE/DASHBOARD. ALL MAINTENANCE UP TO DATE.

Accepted Answer

Ok

 

You may have a coil or coils that are breaking down or an engine vacuum leak. Even though there are no idicators on the dash there may be trouble codes stored in the ecm which will need to be read with a compatible scan tool. You should go to your local parts store or autozone as they will usually scan for codes at no charge. If there are codes stored this will help in the diagnosis of the problem. Let me know how you make out.

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Expert: Richard
Pos. Feedback: 99.3 %
Accepts: 
Answered: 11/24/2008

ASE Certified Technician

12 years Ford Lincoln/Mercury Jaguar dealership as a technician and shop foreman reparing all makes

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