Problems heading South
#1
10-08-2015, 07:23 AM
Problems heading South
Hi All, in reference to my post below listed as Intake Gaskets.
I've gone from poor to bad to worse;
Started with reduced performance with codes pointing at # 4 cyl, ( replaced plugs, # 4 coil, fuel filter, fuel additive, 40 lbs fuel pres, injector ping normal) Going on for a few weeks.
first time started misfire, restricted performance day before yesterday.
Yesterday took xk8 out of garage to see if cleared above, drove up the block misfire seemed like running on 3 cylinders, engine quit.
Cranks, no kick, little carb clean in intake, no kick, 40 lbs fuel pressure.
FOUND fuse for ign coil blown, replaced 3 xs same result.
I,m thinking to check wires where I can. then what. I also suspect the replaced coil... Are the coils direct from the computer or is something in between I should look at. Any ideas?
thank you Rich
I've gone from poor to bad to worse;
Started with reduced performance with codes pointing at # 4 cyl, ( replaced plugs, # 4 coil, fuel filter, fuel additive, 40 lbs fuel pres, injector ping normal) Going on for a few weeks.
first time started misfire, restricted performance day before yesterday.
Yesterday took xk8 out of garage to see if cleared above, drove up the block misfire seemed like running on 3 cylinders, engine quit.
Cranks, no kick, little carb clean in intake, no kick, 40 lbs fuel pressure.
FOUND fuse for ign coil blown, replaced 3 xs same result.
I,m thinking to check wires where I can. then what. I also suspect the replaced coil... Are the coils direct from the computer or is something in between I should look at. Any ideas?
thank you Rich
#3
10-08-2015, 08:36 AM
Veteran Member
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reb1999 (10-09-2015)
#4
10-10-2015, 07:34 AM
Curve ball
Hi All, my sudden misfire, limp home mode to no start engine problem on my 99 XK8 turned out to be a shorted brand new coil I purchased from a reputable Jaguar Parts Supply.
Found the blow fuse under hood. Since this was the first time for a blown fuse, I suspected the new coil. Disconnected the right bank coil wires. Turned on ign key. fuse held ( prior went through 4 fuses.) re- hooked up all other coils except suspected, fuse held. Replaced coil, engine starts...
I am hopeful ( won't count on it) the above is part of the P0304/05 code with reduced performance I have been hunting after for a month.
If the car runs, with occasional lights popping up ( running fine) I will be ok.
As usual Gents, thank you so much for all your help and advice. Rich
Found the blow fuse under hood. Since this was the first time for a blown fuse, I suspected the new coil. Disconnected the right bank coil wires. Turned on ign key. fuse held ( prior went through 4 fuses.) re- hooked up all other coils except suspected, fuse held. Replaced coil, engine starts...
I am hopeful ( won't count on it) the above is part of the P0304/05 code with reduced performance I have been hunting after for a month.
If the car runs, with occasional lights popping up ( running fine) I will be ok.
As usual Gents, thank you so much for all your help and advice. Rich
Hi All, in reference to my post below listed as Intake Gaskets.
I've gone from poor to bad to worse;
Started with reduced performance with codes pointing at # 4 cyl, ( replaced plugs, # 4 coil, fuel filter, fuel additive, 40 lbs fuel pres, injector ping normal) Going on for a few weeks.
first time started misfire, restricted performance day before yesterday.
Yesterday took xk8 out of garage to see if cleared above, drove up the block misfire seemed like running on 3 cylinders, engine quit.
Cranks, no kick, little carb clean in intake, no kick, 40 lbs fuel pressure.
FOUND fuse for ign coil blown, replaced 3 xs same result.
I,m thinking to check wires where I can. then what. I also suspect the replaced coil... Are the coils direct from the computer or is something in between I should look at. Any ideas?
thank you Rich
I've gone from poor to bad to worse;
Started with reduced performance with codes pointing at # 4 cyl, ( replaced plugs, # 4 coil, fuel filter, fuel additive, 40 lbs fuel pres, injector ping normal) Going on for a few weeks.
first time started misfire, restricted performance day before yesterday.
Yesterday took xk8 out of garage to see if cleared above, drove up the block misfire seemed like running on 3 cylinders, engine quit.
Cranks, no kick, little carb clean in intake, no kick, 40 lbs fuel pressure.
FOUND fuse for ign coil blown, replaced 3 xs same result.
I,m thinking to check wires where I can. then what. I also suspect the replaced coil... Are the coils direct from the computer or is something in between I should look at. Any ideas?
thank you Rich