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XJS ( X27 ) 1975 - 1996 3.6 4.0 5.3 6.0

1987 XJS Engine won’t crank

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Old 05-15-2019, 03:05 AM
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Originally Posted by XJS87
Thanks again for all the help! Haven’t had time to completely clean the tank out but I did drain it and put new fuel in. Made a world of difference for throttle response! However the engine starts to lag when it reaches 5000 rpm. Any idea what that might be? Thanks!
Blocked filter, pump underperforming, FPR going home...etc
 
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