Hi Folks, after owning my car for a couple of weeks i am now working through some routine servicing and diagnosis of my P0171 and 174 codes. I have covered all the ground on the usual suspects of vac leaks and while doing so have come across a previous poor repair of the hard vac line going from under the throttle body to what i think is the evap control solenoid. The outlet from the solenoid has been broken and glued with epoxy, which has broken again.

Can the valve be bought by itself or does it come with the short of pipe going to the throttle body and the much longer length going around the engine bay?

 

I am unable to asnwer your questions on that piece of rigid plastic pipe, but I did notice in your second pic there is no seal on your VVT - unless you are in the process of replacing it? They are inexpensive and just press in after removing the old one, which has already been done in your picture.

https://www.eeuroparts.com/Parts/188...al-APAAJ82856/

 

Hi , thanks for the reply, the rubber seal that the VVT sits in is present in the picture or am i missing something?

 

Looks OK to me. Do you have a copy of the Jaguar Electronic Parts Catalogue (JEPC)? If not you can download it for free.(See "HOW TO" above) Hoses are shown in there.

 

On second look I can see a seal there but either the original ones were different or the rim of it is push in? Your seal isn't leaking as the solenoid is dry, so it should probably be left alone. I replaced mine for some seepage; they look more like this with a substantial rim around the outer edge.


Hope your get the new car sorted out in quick order. The X350 has some known weak areas but overall is a very reasonable vehicle to maintain, especially for those who do most maintenance themselves.. My cars been very reliable, over 100k miles of ownership. A transmission fluid/filter/valve body seal refresh at 60-75k mile intervals is the single best service you can do, in my opinion.

 

Thanks for the clarification Blairware, I have been able to do a good job of fixing the evap control solenoid whilst also attending to the following defective or overdue service parts:

New plugs and inlet manifold seals
New IMT seals
New breather hose and PCV valve
New quick release O rings for the Brake servo and throttle body
New fuel filter
New throttle body to manifold seal
New air filter
New Maf
I agree they are very easy to work on, certainly easier than the older Jaguars i have owned.
Touch wood my P0171 and 174 codes should be a thing of the past when i finish getting it back together tomorrow, if not i have certainly narrowed the field a bit!