1990 Jaguar XJS Questions

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87 XJS 70K miles. Engine starts normally when cold or even warm but after a 20 - 30 minute drive it must set for about an hour or more before it will start, cranks over fine but no start until it sits for a while.
What seems to make the problem better or worse? won't start when hot, 1987 xjs
How long have you had this problem? last couple of outings
When lifting the parking brake the brakes are certainly being applied but the button is not engaging so the brake will not stay on
This is also right around the time the engine reaches normal operation temperature.
My XJS has 96,000 miles. She sat (un-driven) for about 3yrs but I went out and start her up every so often over the three 3yrs and now this problem.
Fuel is good (New Fuel Pump and Filter), battery is good. I have replaced both Engine Coolant Temperature Sensor (ECTS) and my Intake Air Temperature Sensor (IATS). Could it be my Fuel Pressure Regulator and/or my Ignition Module (IM) A and B Bank? Please help. Thanks.
Where is the convertible pump?
Top will not operate
1988 xjs how to turn on air conditioner
After the car runs until its hot the gears grind sometimes and are harder to shift especially 1st and Reverse
I have the replacement engine.
what can i do to stop water from coming in?
i need brake fluid flush . approximate cost ?
How much should rear brakes cost to replace on a 1990 xjs. I was told that it would be 11 hours of labor costs at Meineke
Have no manual / Need intake, exhaust valve setting, please
5.3 Liter 1987 XJS 12 cylinder (2 door coup)
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