Strange ignition problem Options

[Quidam]

So I love my new GT4, far more than I thought I would when I first bought it. No longer a daily driver (as my first intention) it now shares duties evenly with my beloved MX5

But this morning when I tried to fire the car up, all I got was a single "clump" noise. First thought, maybe the battery is almost dead -but the battery was fine. (all electrics running without issue) Tried again and it fired up fine. So I killed the engine and tried again, same issue -a single little "clump" then nothing. And again and again. Finally it decided to fire up.

Strange thing is when it does ignite, it does it brilliantly without any struggle or delay.

I realise with every question like this I demonstrate my ignorance of all things mechanical, but that's why I'm asking -I really haven't a clue as to what this could be. Spark Plugs? I have dropped the car off this morning at my local mechanics and have asked them to investigate, but I'm betting it probably won't even fail for them (Murphy's Law) and am interested in anyones thoughts

Cheers
b

[delusionz]

Really? I had the same problem when we had an AVS alarm installed in our SS-III,

The battery is mounted in the boot, I was using a small battery, the lowest CCA rating you could get in the Century brand, and the ground wire was stock, and the engine didn't have a direct ground (Grounded to the boot).

Granted this is not the ideal situation to have, it still posed no problem at all ever, in many months, That is until the AVS 5 star alarm was installed, it basically sounded like there was plenty of juice but wouldn't turn over at all the starter motor just clicked rapidly.

I had actually gone back to the alarm company and told them their alarm is sucking all my juice, and they told me my grounds were inadequate and to fix it up and bring it back if the problem still persists.

Anyhow, I upgraded the ground wires to 2 gauge (thick), with a direct ground to the engine at the same time I upgraded the size of the battery to a larger CCA rating and the problem disappeared.

So what I figure is the AVS alarm/immobiliser is a big juice sucking unit and you need plenty thick wiring and a good battery to cope with it.