I have a 1996 Jeep, Grand Cherokee, Limited, 4.0 litre, Petrol, Automatic. I have had the car for 4 months now and been using the car with no problems up untill the other day. I was out in the car and had stopped for about 15 mins When I tried to start the car the engine would not fire. The engine would turn over but would not fire. Normally she would start on the first turn of the engine.

There is a spark getting to the spark plugs but not to the coil. The fuel pump is not getting fuel. When I turn on the ignition the battery light does not light up. When I try to start the engine the dash lights go out but the fuel warning light and the ABS light remain on even though there is plenty of fuel in the tank.
I have checked the battery, earth strap and fuses and all look ok.

Could the problem be a fault with the immobilser that is stopping the car from starting?
Thanks for any help.
Hugh

 

If by immobilizer you mean the alarm system then I think they are related. The alarm system keeps the fuel injectors from getting the signal to inject, I think that is how I have heard it described before. I have no such system on mine so can't address it from experiece, but remember hearing that the system operates that way. Maybe a GC owner can help you more than I.

 

Yes I believe the alarm system is stopping the fuel getting the signal to inject. Does anyone know where I would look to solve the problem?