XJ8L Valley Hose Replacement Parts
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XJ8L Valley Hose Replacement Parts
Hi all,
My 05 xj8l has 210,000 miles and sprung a major coolant leak. My mechanic pressure tested the system and thought the leak was coming from under the intake manifold.
in the quest to save $900 in labor costs, I’ve decided to attempt this job myself.
I could not find a detailed step by step thread for N/A 4.2 x350s, but I’m pretty sure these are the parts I’ll need:
Under Intake hose AJ811763
TB Return hose AJ89554
2x EGR Gasket AJ88560
Intake Manifold Gaskets https://www.ebay.com/itm/jaguar-xj8-...d=182671970732
TB Gasket
Metal Intake Manifold Gasket
I’m not sure if these are all of the parts I’ll need, and was wondering if anyone thought there was anything else?
Also, are there any other coolant hoses/preventative maintenance parts I might want to replace while the intake manifold is out?
Thank you.
My 05 xj8l has 210,000 miles and sprung a major coolant leak. My mechanic pressure tested the system and thought the leak was coming from under the intake manifold.
in the quest to save $900 in labor costs, I’ve decided to attempt this job myself.
I could not find a detailed step by step thread for N/A 4.2 x350s, but I’m pretty sure these are the parts I’ll need:
Under Intake hose AJ811763
TB Return hose AJ89554
2x EGR Gasket AJ88560
Intake Manifold Gaskets https://www.ebay.com/itm/jaguar-xj8-...d=182671970732
TB Gasket
Metal Intake Manifold Gasket
I’m not sure if these are all of the parts I’ll need, and was wondering if anyone thought there was anything else?
Also, are there any other coolant hoses/preventative maintenance parts I might want to replace while the intake manifold is out?
Thank you.
Last edited by GGG; 04-03-2019 at 02:22 AM.
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I showed these to my mechanic, and he coached me on how to remove them.
Now, the only thing left to remove is the fuel line(s).
I bought a disconnect tool from harbor freight. https://m.harborfreight.com/3-piece-...not%20provided Would anyone happen to know where to connect it to?
Also, will I need special pliers to disconnect the hoses once I get the manifold off?
Now, the only thing left to remove is the fuel line(s).
I bought a disconnect tool from harbor freight. https://m.harborfreight.com/3-piece-...not%20provided Would anyone happen to know where to connect it to?
Also, will I need special pliers to disconnect the hoses once I get the manifold off?
Last edited by 1sloXJR; 04-02-2019 at 02:02 PM.
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I was able to open the manifold today, but it is still connected at the back and I can’t seem to get it completely out.
In any case, I was able to lift it up enough to see that my valley hose had a giant inch wide tear in it. That explains everything...
Under the manifold, I found two brown absorbing devices, one filled to the brim with some liquid, maybe coolant. Does anyone know what these are, and what part number I can use to reorder them?
Also, I ordered the $79 upper intake manifold gaskets from ebay, but don’t see where they would attach to the manifold. It doesn’t seem like they are under the metal gasket, but that’s where I would guess they belong.
In any case, I was able to lift it up enough to see that my valley hose had a giant inch wide tear in it. That explains everything...
Under the manifold, I found two brown absorbing devices, one filled to the brim with some liquid, maybe coolant. Does anyone know what these are, and what part number I can use to reorder them?
Also, I ordered the $79 upper intake manifold gaskets from ebay, but don’t see where they would attach to the manifold. It doesn’t seem like they are under the metal gasket, but that’s where I would guess they belong.
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To disconnect your Brake Booster pipe you need to peel back the silver-coloured heat protection and disconnect as shown in the bottom
right of this picture:
There are also two bolts securing the Wring Harness to the rear top of the Manifold and the Map Sensor must be unplugged. Be very careful when removing and refitting the Manifold - The Brake Booster pipe can become quite brittle back there!
The brown 'bags, are (I believe) for sound proofing and yours has probably become saturated with the leaking coolant?
right of this picture:
There are also two bolts securing the Wring Harness to the rear top of the Manifold and the Map Sensor must be unplugged. Be very careful when removing and refitting the Manifold - The Brake Booster pipe can become quite brittle back there!
The brown 'bags, are (I believe) for sound proofing and yours has probably become saturated with the leaking coolant?
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