I have searched but cannot find directions on replacing the intake manifold and throttle body gaskets. I am getting the whistling noise. I have no other leaks so in betting in thst being the prob. I am going to replace the part load breather and all the heater hoses as well As the thermostat housing. Anyone have the directions to remove the intake and throttle body handy? Thanks.

 

I just remove the throttle body and manifold together. Start by draining the coolant and removing the reservoir, being careful to not damage the sensor connector. (this is to give you the room to work around the TB) I believe 4 small bolts (8mm)hold the manifold to brackets on the left and right and then remove the manifold bolts.

Once those are removed, unclip the fuel lines (2) with the special fuel line removal tool from autozone ($5) and undo the fuel injector connectors/throttle body electrical connectors. Next, remove the coolant and vacuum lines from the throttle body and remove the TB/Manifold as one unit.

Alternatively, you can remove the throttle body first (four bolts whare you would expect them to be)looking from above the TB, they are easy to spot (10mm)

The hoses and housing are a walk in the park once you have the manifold off. Consider the $140 octopus hose while you are in there as well if finances allow, as it is a bear to get to.

 

Thanks just what I need. Figured it was simple. Just tired of the whistling and Po171.

 

Thank you Sir - Just went through the process two replace two water houses that run under the manifold. Also replaced thermostat housing with updated metal version. Great, thanks again.

 

I just did this myself to my XJ8 and XK8 side by side together (they both were leaking from the under manifold hoses) It was pretty quick.

 

anyone have the torque sequence for the intake manifold? I believe you should torque it to 20nm-22nm?

 

Did the work fix the p0171 code that you kept getting? I am currently getting the p0171 and p0174 codes.