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My 2004 X-Type suddenly went into 'Limp Home Mode' displayed 'engine fault' and 'gearbox fault' After pulling off the road I shut off the engine and remove the key and wait abo
Having a restoration shop and running several newer Jaguars I have seen similar situations. Intermittent multiple errors such as these can be caused by a low battery (or corroded connections) that "fool the computers". Also had a '99 XJ8 VDP have exactly the same issues over several months. Issue was a manufacturing fault in the sensors on the throttle body that caused the "limp home" mode - usually in stop and go traffic. Jaguar had an inspection and recall on the throttle bodies but that vehicle had gone through 3 different Jaguar dealers for service and none looked at TSB/Recall or performed the necessary checks on the throttle body. Tried cleaning the throttle several times (per Jaguar TSBs) but no change. Had to replace throttle body & problem solved (over 30,000 miles since then). Recommend making sure all air connections to throttle are clean and open and cleaning the throttle area to see if that helps.
On newer Jaguars (and other Al bodied cars) similar problems occur when the "ground" connections to the body become poor (usually through corrosion but sometimes through collisions). Connections may look perfectly normal but have high resistance. Careful when working with the connections - the posts are usually very loosely fastened to the bodies. The engine quit on a 2005 XJ8 VDP when I turned the wipers on (fortunately I was driving slow in a parking lot) because one of the forward bulkhead ground connections was corroded (looked normal but separated from body when removing the wires to clean them).
Also there occur occasional funny intermittent issues with all newer Jags that seem to be untraceable and non-reproducable computer "glitches".Good luck.
on Nov 29, 2017
2000 Jaguar xj8 turn over won't start stability control fail light on.
the stab light comes on if the battery is low because you are cranking the engine your aj26 v8 engine may have a common problem for cars up to that model/year with worn nicosil coated bores ie. low compression check the vin no. at your jag dealer you can get it started by removing the spark plugs and putting a egg cup of engine oil in to each of the cylinders the first thing to do is to check for fault codes using a obd code reader for a clue followed by a compression test
on Sep 26, 2017
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