It's time again to put the car away for the winter, and on the short list is an oil change. I'd like to replace the oil pressure sender at the same time. The oil pressure on the dash gauge (not the idiot light, the actual gauge) will move, but even cold and under load it never reads over about 20PSI.

It's not at zero at idle, but pretty close. I know it's higher than that, at least when cold; there's only a very minor oil leak, and the level on the dipstick is right where it should be. I'm running 20w50 in it currently. There's no noise coming from the motor that shouldn't be, so it has good oil pressure. I've put a couple thousand miles on it this year with no issues, and no idiot light coming on.

Can someone who has researched this point me to the correct part number? I've looked up a few threads but can't find anything definitive. From what I can tell there's a newer sender that basically turns the gauge into another idiot light, but can I still get one of the proper ones that will show the actual pressure through the range instead of just being a switch?

Thank you!

 

Part #22 on the diagram: Cylinder Block Top Cover-5.3 Litre - Parts For XJS from (V)179737 to (V)226645 | Jaguar Classic Parts UK

Lots of supercessions, looks like the top of the tree is DAC11141. Rockauto.com has an aftermarket unit for about $45: More Information for STANDARD MOTOR PRODUCTS PS293

They also list the switch type, the Standard part is the OE style transducer.

 

For a prefacelift parts number is C46272

 

Thanks, guys! It will be great to actually know the oil pressure again. Glad to hear you can still get the transducer style.

 

You may need to make up and fit an in-line resistor if you go with the aftermarket unit - see this thread on the XJ40 forum for the correct value:

https://www.jaguarforums.com/forum/x...sender-133621/

Larry