Hi my name is Mark just joined the group and great to be here. Just bought a 2004 Jag X Type and loving it !! 5 speed manual 2.5 v6
Great car and great LQQKS!!
Although I have had a problem with the engine light.
Lean bank 1 and bank 2... But I found that the nipple was broken off of the coolant reservoir so I stuck it back in the top for now ...
But, my q is : will the make bank one and two go off on the code reader ?
Do I have a possible vacuum leak!? Any help would be appreciated
PS this is my first post and my first jag so thx!!

 

HI Mark,

I have the exact same car: 04, 2.5L, Manual, 83k miles and loving it.

I got a vacuum leak a couple of months ago and the code reader said Lean bank. Look for a hose at the very top of the engine (goes from front to back of the engine, not across, joins a black plastic box to the metal box behind the radiator). Mine had a tear in the low end, so it was very difficult to see, but if you run the engine with the hood open, you should hear whistling coming from it.

Sorry for the crappy description (I never know the name of anything!). If you can't find it, let me know and I'll post a quick picture...

 

I've said this other places but I think it's worth repeating.

A good "backyard" way to check for vacuum leaks is to get a can of engine starter fluid and then to spray it liberally anywhere you think there might be a leak. If there is, some of the fluid will get sucked in and end up in the motor whose idle will immediately speed up. If you spray and the engine races you've found a leak. If you spray and nothing happens then there probably isn't a leak in the part you're spraying.

Spray and listen but don't worry about making a mess. The fluid will evaporate very quickly and little or nothing behind.
================================================
Jaguar - it's not an automobile, it's a Motorcar

 

Vacuum leak is one of these three most of the time:
1: pcv valve hose
2: imt o-rings
3: brake booster hose (plastic valve.)

 

Thanks guys... I will chk tonight and reply back thx a million ! Leaper chase :/

 

This works. However, the reason this can help you find a leak is because the fluid is flammable. The fluid burns in the engine. the problem is when it burns on the engine. I've seen a few cars catch fire because the tech used the
spray a little too liberally. The plastic melts fast. Use discretion and have a fire extiguisher handy. A CO2 extinguisher makes no mess and in this application it will work well.

 

>the problem is when it burns on the engine

But really, if you have anything that could light the stater fluid off when sprayed on the top of the engine I really think you have a more critical problem.
================================================
Jaguar - it's not an automobile, it's a Motorcar

 

LOL i once set a porsche 944 on fire doing the same thing.