My question is what is the cause of engine fail safe of range rover?someone give some advice?

If you had to jump start the LR/RR then the battery was weak. If the car then ran for a while then died I would suspect that the alternator has failed and if you have no power the engine will stop running. The alternator is where I would look first .

You should also get the LR/RR scanned once you have power back and it is running again to see what engine related fault codes if any the computer is generating. All the local mechanics will have a scan tool to do this.

Your battery will also need to be recharged and checked for condition. If it is on its last legs it will need to be replaced, especially if the cranking amps reading is low. Only expect to get 3-4 years out of them.

The 'Trans. Failsafe Prog' display indicates a general fault within the trans and this should leave a fault code which can be read off to pinpoint the exact transmission problem. Without this code it will be difficult to correctly identify the source of your problem.

Drop the trans pan and check for debris -- if you have metal in there, then you're going to need a rebuild.

You need an owners manual or access to factory
manuals to find out how many fail safes your vehicle has

Example: Electronic Throttle Control
Engine Over Temp
Transmission Failsafe
Misfire Fail safe to protect converter

Once you have checked for codes which I assume you have
done long ago,you use them as well as trouble charts to
diagnose things

I answered your other same question

If you have to add coolant,it had to go somewhere
as no fluids are consumed

So you have serious problems like a bad coolant
leak or bad head gasket if no visible leak can be found

You need a repair shop

No one can guess & help you from the internet

Repairs have to be made then know how to get out
of fail safe if that applies

That job will required factory reference material to
understand the problem & diagnose it

Timeing belt is broke, Probaly,

You will need to remove the GPS and send it out for repair it has failed.

Bring the car in, I just replaced a transmission last month in an 03

I have referred your problem to Graeme Cooper automotive and should get advice within a day or so. However, I had exactly the same problem on another vehicle, also changed the filter and oil. It worked for a while then failed completely.

First, check under the vehicle for any leaking hose that could be causing a pressure drop. Failing that, the bad new is that you probably have a dud torque converter and/or bad clutch packs and it will be an expensive job

Please ensure that all your fuses are replaced. you already know the reason why the cut in fuses occurred.

rate this.

hello andy,

i think you already solved the problem..... whack the fusebox..

you need to chage the fusebox, because overtime the base of the fuebox which is made of plastic cracks and is causing short circuit.