Greetings!
I posted a bit back about torque specs on oil filters and drain plugs thinking the last oil change was dripping.
Got the car [05 S type 4.2 with auto trans] in the air yesterday and discovered that the oil cooler lines are weeping. I read the threads and would like to ask a couple of questions.

It appears to be a poor design with the crimps so when they are replaced it seems that they will ultimately fail again [1st set has lasted close to 90K] or have the replacement parts been redesigned?

Will parts from the Lincoln fit?

There were quite a few discussions about cutting out the crimps, removing the existing hose and replacing with hydrollic tubing [13mm if you can find it or possibly 1/2"] and double clamping each end with high quality clamps. Has anyone actually done this and had good results? This was also the suggestion of a friend who formerly owned the Jag/British repair shop on Cass Ave. in Detroit.

I try to do what work I can on my vehicles but this seems to be [either modifying or replacing with new] a bit difficult to do on a creeper with the car on ramps - especially with the V8 and my large hands or is it actually easier than it seems?

I am probably going to have J & L Foreign Auto Center [my friend's former shop] on Cass Ave in Detroit take a look at it. Has anyone on the forum had any experience with them?

 

I don't recall this being reported often (ever?) even though most of the 4.2 cars are (like yours) 10+ yrs old.

The LS may well not share the parts but you could let us know if you find it does.

 

Actually there were a number of threads on this subject. It seems like there is a bit more room to work on the V6. Similar problems have been posted regarding weeping oil cooler lines but it looks like they are only used on the supercharged models?

 

The engines each have their own issues. The STR is unique (and small volume).

 

Here's a link to a post about the transmission lines, oil cooler lines are similar: https://www.jaguarforums.com/forum/s...eeping-137292/

I know the transmission lines are .500 inches od, not .5118 (13 mm ). Here's a link to a conversion app if anyone needs one:https://play.google.com/store/apps/d...kubeware.media

I have about 15000 miles on my repair. So far so good.

 

I checked with the Jaguar dealer today - the parts kit [C2Z11606] is available for $211 + tax. Service at the dealer was thought to be a little North of $1000 - seems they have replaced a number of them
I have an appointment with the independent to get a look and a number on Monday.
To 2004STR: I have read the link prior to posting - very informative - nice work!

 

Jaguar's replacement oil cooler lines have NOT been redesigned. I wish they had been. I opted to put the same new lines in since I figured the car would be long-gone from our stable before the new lines fail....

Good luck with your repair. This is indeed a bitch of a job. Let us know how it goes for you....

 

Is this a repair you can do in situ, or do the hose assemblies need to be completely removed? If they must come all the way out, have you considered having custom hoses made? The price is quite reasonable and the turnaround is generally quite fast.

Just search for a hydraulic shop in your area and bring them what you've got. I've had several custom hoses made this way. In some cases, the new assemblies were 100% new. For pieces with oddball end fittings, they reused those parts and replaced the flex portion.

 

1 hour job and $4 parts. Second time It would take me 10 min. But I have V6

 

So, I ended up having the repair done at the independent that I mentioned earlier. Both lines were weeping so they were both replaced with new lines. The new lines were sourced from the transmission manufacturer [ZF] in lieu of Jaguar and 2 quarts of ZF life guard 6 trans fluid were used to top off the fluid lost when the lines were removed. In the process it was also discovered that the steering gear coupler was defective so a new coupler was installed. Could be my imagination but the trans seems to shift smoother than before. This is probably wishful thinking on my part to justify such an expensive repair to correct such a small leak.

 

And your cost was....?

 

All told including the steering gear coupler just north of a grand. Probably $400 less than the local dealer.