From your first post, it appears that you can't even coax the starter motor into life? If that's the case, then the coil and/or HT leads are unlikely to sort it. Assuming you've checked the obvious - like you have power in the battery - the obvious suspects would be the starter motor, immobiliser, ignition module as mentioned above or the ignition switch. There is another option, which is worth checking for - you might have a compression
problem such as a cylinder full of liquid about to start compression stroke (piston at bottom of stroke, inlet and exhaust valves closed). Do the dash lights go out and the clock reset itself when you turn the key to the start position? If so, read on...
Try removing all the spark plugs and trying again. Does the starter motor spin up, turning the engine over?
- If yes, then it's likely the compression
problem mentioned above - could be a failed head gasket leaking coolant into a cylinder. If this is the case, then it'll only cause a
problem when the engine stops at a particular position in the firing order, and only if left to stand more than a few minutes. If you get the plugs back in quick, it should start OK. There's a small possibility that it could be a starter motor at the end of its' useful life.
- If no, try disconnecting the power connections to the starter, cleaning them up with a wire brush or a bit of wire wool and remaking the connections, making sure they're nipped up good and tight. The starter motor is a little exposed and gets covered in crap of the roads. Try starting with key again.
Let us know how you get on...
