Mechanics

MISFIRE

2003 Jaguar S-Type

Engine Performance problem
2003 Jaguar S-Type 6 cyl Two Wheel Drive Automatic 67000 miles

Have a 2003 Jaguar S Type 3.0, check engine light came on and had codes read. Cylinders 1, 3, 5 misfire. How can I fix this?
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Bkrlvr22
October 22, 2009.



Engine misfiring can be caused by worn or fouled spark plugs, a weak spark (weak coil, bad spark plug wire), loss of compression, vacuum leaks, anything that causes an unusually lean fuel mixture (lean misfire), an EGR valve that is stuck open, dirty fuel injectors, low fuel pressure, or even bad fuel.

Rasmataz
Oct 22, 2009.