This LRO reader emailed LRO.firstname.lastname@example.org looking for help after his Range Rover Classic wouldn't start. It has been sat for a while…
My 1989 Range Rover EFi has been parked up for a while now. It won’t start, even with a new battery. I don’t think fuel is getting to the engine.
The fuel pump’s 10A fuse is intact but I have no way of knowing if the relay that lives under the driver’s seat is okay. I’ve swapped the two identical relays but to no avail.
I’m told there’s a cut-off/immobiliser switch somewhere on the vehicle but I can see no sign of this. There’s no access hatch in the rear of the Range Rover so it’s definitely a fuel-tank-off job if I need to replace the pump.
Is there a cut-off/immobiliser switch on the vehicle? I’d like to check this item before I remove the fuel tank to test the fuel pump.
Andy Jones, Northampton
The fuel pump may have seized after standing for such a long time: there may also be issues with the engine. For future reference, it’s a good idea to start a laid-up vehicle every month or so, just to keep everything working.
Check the relay under the seat simply by holding it when turning o the ignition: you should be able to feel it click.
The 3.5 EFi doesn’t have the fuel shut-off solenoid: these were only fitted to the very late 3.5 and all engines from the 3.9 on.
There’s a shut-off solenoid in the injection system: It’s at the back of the inlet manifold on the drivers side on your vehicle, with two wires and a vacuum hose going into it. You can rule this out of the equation by disconnecting the two wires and joining them.
The fuel pump doesn’t need to be taken off to test it. If you look at the top of the fuel tank, you’ll see the wiring connector for the pump. It’s a bit fiddly but you can get at it and put live and earth wires directly to the pump, to test whether it’s working or not. Once you have fuel up to the engine, you need to hope the injectors haven’t seized: a new set can be rather expensive.
Dirty injectors can be cleaned by specialists, but this can also be pricey.
Drain out the petrol and replace with new before trying to start the engine. Old unleaded can make an engine run poorly, if it allows it to start at all.
This workshop advice appeared in the August 2012 issue of LRO. Back issues are available to download on digital devices here.