XJS ( X27 ) 1975 - 1996 3.6 4.0 5.3 6.0

87 XJS V12 fuel rail temperature sensor

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Old 05-24-2017, 08:54 AM
J_C_R's Avatar
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Default 87 XJS V12 fuel rail temperature sensor

Later cars apparently had a electric switch instead of a vacuum switch (I think the one pictured is EAC5086).

Not wanting to spend the better part of $300 for one, I'm wondering if there is a work around using the electric version?

Thanks,

John
1987 XJ-S V12
 
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Old 05-25-2017, 12:49 AM
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Just remove it from the car.
 
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Old 05-25-2017, 04:17 AM
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Agreed.

Most down here have long time gone.

No issues with the car at all, and simply tuck the wires out of site until you get to do the EFI loom, then omit them.
 
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Old 05-25-2017, 09:03 AM
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Well, in my case the thing does seem to make a difference when it comes to hot starting on a hot day, which is odd since Grant certainly deals with temperatures far in excess of what we get here in Indiana. Anyway, after mulling it over, I though I'd have a try at fixing it.

The valve itself works, it's just that the hose barbs had been broken off to the extent that a vacuum hose wouldn't stay attached. So I took a piece of copper tubing, expanded one end a bit with a tapered punch...just enough so that it was a tight fit over the hose barb, then heated the copper briefly with a torch, and pushed the barb into the tubing (hoping some of the plastic would melt a bit and grab onto the inside of the tubin. This seems to have worked pretty well, how long it will last only time will tell.

Thanks,

John
1987 XJ-S V12
 
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Old 05-25-2017, 11:43 AM
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My electric one broke apart as they all seem to do, but I found a vacuum version on an xj6 in a breakers yard.
 

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