1988 Jaguar XJS rough idle

Tiny
ELLIOTTC87
  • MEMBER
  • 1988 JAGUAR XJS
  • V12
  • 2WD
  • AUTOMATIC
  • 92,000 MILES
My 88 xjs V12 idles rough when the engines is hot. I took it to my mechanic and I had all my injectors cleaned out. When they put the car the tunescope they found the left bank cylinders running richer than the right bank. They tried putting a new computer in it but it made no differance. The car runs fine driving but as soon as you stop it idles rough, you can clearly feel the engine miss when you put your hand over the exhaust. I have good oil pressure and the engine isnt smokey. My mechanic (who is a jag speciaist) has no idea any help would be realy apreciated.

Thank you
Do you
have the same problem?
Yes
No
Wednesday, July 30th, 2008 AT 5:18 AM

1 Reply

Tiny
DAVE H
  • EXPERT
Check for a leaking down injector
Was this
answer
helpful?
Yes
No
Sunday, January 10th, 2010 AT 5:57 AM

Please login or register to post a reply.

Recommended Guides