what causes the v-12 to cut out during acceleration ?


Asked by Sep 24, 2007 at 04:10 PM about the 1990 Jaguar XJ-Series

Question type: Maintenance & Repair

my car has 60000 miles on it. It will run ok if I drive it like there is an egg under the throttle but cuts out and runs rough when under acceleration.

6 Answers


Ever change the fuel filter? How's the air filter?


tps!!!!!!!! throttle position sencer!!!!!!!!!!!!!! possibly bad map sencer too if so equiped , map manafold absolute pressure sencer sorry never was good at spelling


It could be one of those SENSORS. Or it might be a bad fuel pump. I'm sort of having that problem on my SVT.


I have changed the fuel filter and the air filters are ok but will need to be replaced in the future.

Sid Snott

I got a crankshaft sensor and coil for my XJ Sovereign when it kept cutting out, seems fine now. Good luck.

1 out of 1 people think this is helpful.
Jeff Swick

could be several things...bad gas, sensor, idle control, throttle body.... Get a high grade cleaner like Seafoam and run it for 100 miles.. Sometimes the throttle position and/or idel control gets stuck. you may have to take the breather off and clean and lube the throttle/idle units

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