i have just had a bad day.. were should i start. went to take the beast out today to try and get some new self leveling shocks.. oh the car is a 1997 omega elite 30.i estate, anyway driving along 30 40 mph then suddenly a huge bolder or rock fell from a lorry did not have time to miss it went under the car what a noise i thought the engine was going to fall out. i thought i was lucky .. then suddenly smoke started coming in fro the vents i meen smoke that bakerlite smell smoke !! thinking electrical the car is going to catch fire.. pulled over fliped the bonnet and smoke was coming from the drain hole drivers side,, oh f)ck ,,,, so i turned the ingnition off !! it would not turn off engine still running.. panic set in so next battery terminal disconnect.. no tgools but i did have a leatherman multi tool so diconnected the battery "still running the engine compartment was filled with smoke. i thought this is it goodbye old friend.... then i thought ok relay time so i flip the relay lid right send and removed relays at random. then the car stopped . still smoking from the area ..  but dying down
went back home taxi got some tools test equipment removed the cover to find....... the alarm siren dead short, burnt straight through the casing. now looking under the car i could see were the bolder had hit front cat and back box, but how the hell would that cause the alarm siren to short out like that...

i removed the sirem/horn made good the wire , no plug or socket left. fixed everything down reconnected the battery.. thinking the worst i put the key in hay presto everything worked 100%
bar setting clock ect. plugged in dinostic reader no faults. central locking works immobilise works..
i could have lost the old girl, if i had not done what i had i think well i know she would have been toast.. has anyone any ideas. oh and also has anyone got a spare alarm horn and plug with cable if anyones breaking the gm number is 90508618 pj ,, long ditty but i just had to tell you all very strange. car is due for mot soon needs new shocks.. was going to fit normal and bybass the pump, but i think i will treat her ,, help her recover hahaha
thanks, oh just joined today

Hi and welcome to the forum

I think you had a lucky escape. I dont suppose you got the wagons reg No

Welcome to the forum

Seems everyone has had a bad day today

Can't answer why it should happen.

Is it the horn or the powersounder?

Hello & welcome 

That sounds nasty!

I wonder if the power sounder shorted between the permanent live and switched live hence the problems switching everything off? .. and then the wiring overheated, of course. No fuses blown, I take it? 

Glad you managed to save it though, thanks to quick thinking on your part, by the sound of it. It's not always easy to think things through and do the right thing when you're panicking!

I'd take a little time to trace the wiring back from the power sounder and check there's no damage further up the loom.

The power sounder only provides the Thatcham approval part of the alarm in any case. I think you'll find the main alarm horn still sounds, but of course it can be silenced by removing the battery.

I'd be happy to do a post-mortem on the old power sounder if there's anything left of it. Sounds like it would be good to know how this happened!

Kevin

Hello and welcome to our forum  

Welcome & happy Omega motoring   

Hi and welcome to the Forum m8