Jaguar Repair Problems? Ask a Jaguar Repairs Expert.
This could de caused by several things. Do me a faver and remove the two rods going frome the center throttle tower to both throttle blads by the air filters. simply pry them off tith a small screw driver and see if it lowers.
Also, and I know this sounds strange, but is the bake fluid resivoir round and small (soda pop can size) or square and large?
This will tell me what ignition system you have. Lucus or Marelli
This year it could be eather or, as it was a mid-year chang
Allso where do you live? Are you in a area wher the tep. drops below freezing?
A OBD-2 scan tool will not help you as your Jag is a 1988 year. OBD-2 startted in 1995.
As far as making me a fav. I dont now. sent a e-mail to suport and let me know
Remove both air filters and throttle linkage and set the throttle blades to .002 in. On the driver's side of the engine just behing the throttle blade you will find a hose going from the back side of the air filter to the idle control valve. On the side of that valve you will see the base idle adjustment screw. (13mm if factory 17mm if aftermarket) Run the adjustment all the way in. If it still will not idle normal at operating temp, that valve is stuck open and will need to be replaced.
It's bolted down on the coolant rail and as the coolant comes up to temp the air bypass should close.
If everything (tune-up related) is set and operating properly that idle screw should show two threads.