Hi I am proud to say I just purchased my first Jaguar it is a 2003 Jaguar S type with 66000 miles on it. Now I love this car except I have one issue that is causing me a lot of concern. Generally there are no driveability issues except around 2000 rpm it gently surges between 1800 and 2000 rpms which kind of makes it seem like the transmission is slipping particularly uphill. Now the real bad issue is when the fuel level gets to about a little below a 1/4 it drops all the way to Empty and then I get an error saying Fuel Computer Data Error. Not a big deal but in general before the error it says I have a little over 100 miles left til empty. However it starts acting like it is running out of gas especially up hill it acts like it is gonna die. Has anyone had this issue or know what it could be. I emailed a jag dealer and they emailed back it may be one of the fuel sending units going bad but they have to test and those units are super expensive. Thanks in advance.

Ned

 

Please put your engine size etc in your profile.

If you post the last 6 of your VIN and confirm whether you have manual handbrake (else the EPB), I may have ideas.

Do you have an OBD tool ($30 ebay) and the workshop manual ($10 ebay)?

 

Last 6 is M88955
It has the epb
engine is the 3.0 V6

I do not have a obd or shop manual but prob should invest in one

 

My 2000 4.0 v8 also says the samething and my mph stops working.

 

redstang66 - sounds like you have 2 problems. At that VIN you have the ZF 6HP26 autobox. You'll find the stickies have a TSB (tech service bulletin) about the surge and the fix.

Your other problem might be diagnosable using ETM (engineering test mode) - use search to find that.

 

i have a 2001 jauar s type 4.0 v-8 and my car wont start ,it sounds like it wants to turnover but it doesn't . say's FUEL COMPUTER DATA ERROR . tryed disconnecting battery for 2 hours and it started up but as soon as we turned off car it wouldnt crank over ..can any one help with this problem ?

 

My 03 S-type 3.0 did the same thing when it was a year old. It would gently surge up and down like it was searching softly for a gear change. The Jag dealer tried many things, until one day a mechanic found a reference from the manufacturer. They changed the torque converter and everything has been good ever since. It now has 69,000 kilometres on it.