Where is the vacuum line on a Jaguar?
Remove the vacuum line under the throttle body left side. This is the second vacuum line on the left side. Disconnect it. On the right side you have 2 lines to disconnect, one to the fuel rail and the other under the throttle body. Please note the white plastic connector tube.
What causes a vacuum leak in a Jaguar?
Took it back for another leak test (smoke) and found a slight leak under the TB where the throttle elbow hose connects. This was after the pressure was increased a little. I am getting an “O” ring that should take care of the leak. I fixed all the leaks and I can say at this point NO VACUUM LEAKS!
Where is the leak on my Jaguar XJ?
I am jumping ahead to show you the location of the leak we found using a smoke test. In the beginning I found area using throttle body cleaner but was unable to pinpoint the problem but felt it was the breather hose under the manifold so, I elected to replace the breather hose.
What are the code for poor idle on a Jaguar?
I should note that the poor idle still existed. The codes I got were P0300, P1316 and P1121 ABS Traction control, Transmission trouble and Failsafe cleared the codes and drove it home with no problems. I removed the throttle body when I got home and to my surprise I saw the throttle position sensor case had seemed to come apart.
Took it back for another leak test (smoke) and found a slight leak under the TB where the throttle elbow hose connects. This was after the pressure was increased a little. I am getting an “O” ring that should take care of the leak. I fixed all the leaks and I can say at this point NO VACUUM LEAKS!
I am jumping ahead to show you the location of the leak we found using a smoke test. In the beginning I found area using throttle body cleaner but was unable to pinpoint the problem but felt it was the breather hose under the manifold so, I elected to replace the breather hose.
What to do about idle problem on Jaguar?
I examined the second used manifold by washing it with Simple Green, cleaned it up and reexamined it and found it to be good so I began transferring all the stuff. Got it on the car and the idle problem improved but was not corrected.
Remove the vacuum line under the throttle body left side. This is the second vacuum line on the left side. Disconnect it. On the right side you have 2 lines to disconnect, one to the fuel rail and the other under the throttle body. Please note the white plastic connector tube.