Intercooler Burst, P006-A , MAP Sensor & Throttle Body Split

[AlexWard]

As the title says... What a week of issues...

Intercooler burst with its last owner, replaced by an Indy somewhere in Gloucestershire (who did a shocking job of putting things back together) 3 years ago...

Now its gone again - Replaced with a secondhand unit from an S Type, which is physically the same, and on the surface, a lot better engineered from the plastic welding side of things...

Contacted Jaguar regarding the shoddy workmanship on a 3 year old part, only to be politely told to Foxtrot Oscar...

Then i got 'Restricted Performance' again on Monday.  Limped the car home, hooked up the SDD, P006-A error code - Manifold Pressure - 0 Volts at the MAP sensor, sourced a replacement from an S Type (Again) complete with the Throttle body housing, which turned out to be a good move as the original had a split in the end where it branches off into the respective inlet manifolds. Noted that the MAP sensor has been superceeded by a differently designed part . That would explain the Oil slick by the filter then which i thought at first was from over zealous tightening of the filter top.... Anyway... All sorted now hopefully, sadly i have no faith in the XF now until she proves herself again when i take it out later...

Could it be that i am finding Peugeot / Citroen parts in the engine bay? Probably.... I have a distinct hatred of French car parts... They need to stick to what they are good at like Garlic & fine wine...

FoMoco parts i can live with as i have had Fords for years, without any inherant issues, despite the stigma around the F.O.R.D ancronym.... and i am currently working on an alternative supply list of parts that bear the FoMoco branding that will bolt straight on to save the stress of visiting a main dealer.

I will post some pictures up later of the offending parts, i am sure that anyone who has suffered the same will be aware of it anyway, but the power of the masses to assist other owners should not be underestimated.. Hence the great information on Owners forums

[AlexWard]

Soooo... Quick update... Took her out... RP came back... Started a more indepth investigation only to find the dreaded split induction cover on the drivers side...

Spanners out.. Kettle on... Wallet empty.. 😞

 

[david moore]

sounds as your having a night mare with this issue, at least with you doing the job yourself you will be getting a great insight of the layout of everything and best ways of fitting new parts back in ,( when my boost pipe went I checked loads of components that support the whole system. ) good luck with the repairs, look forward to seeing pics when posted. 

[AlexWard]

Its all apart except for 1 bolt...

According to the Jag tech bulletins, the steering rack, Aux belt, timing belt cover and rad pack have to come off, not so... Thats about 1.5 - 2  hours labour saved at a dealer then...

The bolts holding the diesel rail where a pig, but by unbolting the EGR motor on the drivers side, access is a piece of cake. The bolt closest to the firewall will have its head ground down by 1.5mm to facilitate an easier re assembly...

The only remaining bolt is under a cast steel bracket that holds the EGR valve onto the side of the block. By drilling 3 8mm holes and nibbling out the remainder (still leaving the bracket intact with no obvious structural b*astardisation, i should be able to get a small 10mm socket in there and undo it. If not, it will force a removal of the EGR which by the looks of it, also isnt easy...

So... what i have deduced so far is this... Car had a new intercooler 3 years ago, last owner started having issues with the MAP sensor and its resulting codes, split cam cover, split throttle housing and a couple of other issues.. Which then begs the question, as i have tried to explain to the wife, just HOW far do you go when buying a used car.

 

Subsequently, it has been into the now defunkt Stratstone dealer in Cheltenham for 2 services and 2 x 128 point checks, both of which have failed to flag up an issue.

I havent been taking pics as i go along, however i will start snapping away tomorrow after i have scoured the country for a new cover on same day delivery....

[AlexWard]

Update now... Brand new re designed cam cover is in place, went in without any real inherant issues as i have removed most of the pipework, brackets etc to get it sit correctly on installation.

New seals on the injectors, didnt replace the High Pressure lines as per workshop manual as the shop that sold me the washers hinted that it wasnt necessary. No leaks from the High pressure circuit which is good.

Primed the system as per manual, a little difficult to start at present, therefore i will prime it again (manual says 4 times cycle ignition with a 15 second wait time between cycle) . Pretty confident that there may be a little more air in the system so bleeding will get that sorted.

Just got to re assemble all the other bits now like the bulkhead panels etc, stick on SDD to see if there are any errors then road test it.. Fingers crossed!