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1991 Jaguar XJ6 engine miss

Tiny
ABGEORGE
  • MEMBER
  • 1991 JAGUAR XJ6
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 165,000 MILES
After engine heats up to operating temperature and runs for an hour or so, we get a miss in one or two cylinders. Acceleration is sluggish and fuel economy drops drastically.
Injector or emission control problem?
Sunday, April 27th, 2008 AT 3:28 PM

1 Reply

Tiny
MHPAUTOS
  • MECHANIC
  • 31,938 POSTS
Hi there,

i would get the ignition tested on an oscilloscope hot to check for any problems, also have the fuel rail pressure tested for a faulty injector, check all other tune items as well start here.

Mark (mhpautos)
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Sunday, April 27th, 2008 AT 5:56 PM

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