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.
Where is the intake manifold on a Jaguar?
Under the throttle body you have 2 bolts one on each side that must be removed before the intake manifold can be removed. See photo above and below. I released the fuel pressure at the Schrader valve. Released both fuel lines to the injector rails.
How do you replace an injector in a Jaguar?
After cleaning the replacement manifold I removed the injectors from the old manifold by removing the 2 bolts and lifting the entire one side from the manifold and then did the same on the other side.
How do you replace the breather hose on a Jaguar?
Removed the breather hose from the breather stub. Tied a string to one end so when I pull it out from under the manifold I could pull the new hose in. I could not get my hands on the connector so I used a screwdriver to unlatch the hose. If you do this be sure to not apply excessive force breaking the stay clip on the hose.
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.
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After cleaning the replacement manifold I removed the injectors from the old manifold by removing the 2 bolts and lifting the entire one side from the manifold and then did the same on the other side.
How do you remove an intake manifold from a Jaguar?
Remove the clips (4 on each side) that hold the power supply rail to the injectors. Once all the clips are removed you can unplug from the injectors. At this point you can remove the intake manifold. You may need to do a little jiggling to get it out but no big deal. The new intake manifold gaskets. Notice how clean the injector was.
Remove the clips (4 on each side) that hold the power supply rail to the injectors. Once all the clips are removed you can unplug from the injectors. At this point you can remove the intake manifold. You may need to do a little jiggling to get it out but no big deal. The new intake manifold gaskets. Notice how clean the injector was.
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!
How to remove the intake duct from a Jaguar?
Remove the intake duct. With assistance, visually observe throttle butterfly operation as the ignition is switched ‘ON’ for the first time. Throttle butterfly should fully close, then immediately open to the idle position. Did butterfly stick closed? Switch ignition ‘OFF’. Lightly press throttle butterfly with finger to the fully closed position.
Where are the fuel lines on a Jaguar?
Released both fuel lines to the injector rails. This is the second on the left side. 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.
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.
Why did my Jaguar XF go into lock down?
XF’s are very finicky about battery condition anyway, the fact the car went into lock-down like that could have been due to the battery or me confusing the car or both not sure or in what order but I’ve had no such problems since.
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.
What was the problem with the intake manifold on my Jaguar?
Reinstalled the intake manifold, NO JOY! I took the car into a local shop who had a smoke tester and we found the problem, I had a cracked intake manifold! So, I ordered a used intake manifold and had to wait for the second one to come in because the first one was not going to work.
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!
What causes a coolant leak in a Jaguar?
A coolant leak is a typical issue that can plague your car and cause all sorts of problems throughout your Jaguar if left unattended so it’s important to seek out the help of a Jaguar mechanic as soon as you begin to notice a potential leak.
How can you tell if coolant is leaking from your car?
To find the type of fluid leaking from your vehicle put a piece of cardboard under your car in the area you believe the leak is in and then check the cardboard to determine the color and if it is indeed a coolant leak. Once you’ve determined that there is a leak it’s important to find where the leak is coming from.
What happens if you blow the head gasket on a Jaguar?
A blown head gasket can lead to devastating issues for your Jaguar if you don’t address the problem right away. A blown head gasket can lead to oil and coolant mixing and can also cause a complete loss of compression in your vehicle’s engine.
A coolant leak is a typical issue that can plague your car and cause all sorts of problems throughout your Jaguar if left unattended so it’s important to seek out the help of a Jaguar mechanic as soon as you begin to notice a potential leak.
To find the type of fluid leaking from your vehicle put a piece of cardboard under your car in the area you believe the leak is in and then check the cardboard to determine the color and if it is indeed a coolant leak. Once you’ve determined that there is a leak it’s important to find where the leak is coming from.
A blown head gasket can lead to devastating issues for your Jaguar if you don’t address the problem right away. A blown head gasket can lead to oil and coolant mixing and can also cause a complete loss of compression in your vehicle’s engine.
What causes coolant to leak from the head gasket?
If your car is overheating constantly or you see froth when you check your car’s dipstick then there’s a strong chance that coolant has leaked into your engine oil and that something is wrong with the head gasket. Over time the radiator itself can crack and become damaged which will definitely result in a coolant leak.