chriswatson196
Member
Registered: 20th Mar 08
User status: Offline
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Hey I'm wondering if anyone can help me, I just fitted some new car stereo stuff the usual replacement head unit, front comps, 6x9s sub etc nothing to special but I have just one problem. The head unit sometimes works throughout the length of a journey, but for the most part it just turns itself on and off repeatedly and eventually just dies all together. Its particularly noticeable when I go over a bump or if i corner to hard. At first i thought it was dodgy wiring on the main wiring harness which would have been bad news but i buzzed it through with a multimeter and its all ok. the other day I noticed that the head unit would fire up when I turn the key to start the car (engage starter motor) but as soon as i let the key go so it just falls back into the ignition position with the engine running 90% of the time it just cuts out.
Also, If i put a little bit of pressure on the key but not as much as to engage the starter motor it works and stays on until i let go and it falls back. Anyone got an ideas? do i need to replace the whole ingition/ key assembly (and all the door locks aswell) or is their a quick fix, i.e. rewiring where the power to the head unit comes from. Any help would be much appreciated coz its driving me mad
cheers
Chris
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fazza
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Registered: 7th Feb 08
Location: Plymouth
User status: Offline
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sounds like a loose earth somewhere mate
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bigjim172000
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Registered: 3rd May 05
Location: New Buckenham, Norfolk
User status: Offline
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Im not sure about vauxhalls on the locks but with fords you buy the locks in a kit form and build it to match the key. I would hope that vauxhall are the same.
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chriswatson196
Member
Registered: 20th Mar 08
User status: Offline
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Its definately the key thing (don't know what its called!) must have a dodgy connection somewhere through years of wear just had the cover off no loose wires and having a fiddle with the wires doesnt have any effect, I can lodge the key so it works lol which isnt ideal, any ideas on where I can get a lock kit or simmilar?
cheers for the help so far
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bigjim172000
Member
Registered: 3rd May 05
Location: New Buckenham, Norfolk
User status: Offline
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Vauxhall lol
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Rybo
Member
Registered: 6th Mar 08
Location: Cumbria
User status: Offline
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when you say it cuts out...is it after youve been driving for a while with the music wound up loud? (poss battery getting used quicker than its charging?)
or ...
you say when your going round a bend etc...if that was the case would that not point to a connection thats loose? you dont mention checking it with a multi meter when driving...maybe you could get a mate to sit in with it touching the + and give it a spell of cornering/bumps to see? the other option is get e wire from the + on your battery (a fixed connection) and conect a 10amp fuse in line with two female spade crimps nipped up onto it and connect that to you yellow and red on your head unit...if it stops cutting out when you do this chances are youve a loose connection back in the dash.
the only reason i say these two options is if it was your ignition barrel your stereo live is fed on the ignition live with some parts of your dash (iirc)(rev-counter etc)
so you'd surely of noticed them not working or playing up?
this may be useless reading to you but im afraid without seeing it i could really help any more bud
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Rybo
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Registered: 6th Mar 08
Location: Cumbria
User status: Offline
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also when you say it pops up when you turn the key half way...id be checking my permanent live(by hooking it up how i said you'd have to turn the head unit on and off manually as you'd have removed the switched ignition live)
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chriswatson196
Member
Registered: 20th Mar 08
User status: Offline
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It always turns on briefly when I start the car and then shuts down after they key goes back to the position where electrics on and engine is running and if i wobble the key in the ignition it turns on and off. So im pretty sure its the barrel but what you say about the rev counter etc is wierd because they havent been messing around at all :s swapping out the ignition barrel and all the locks seems a bit ott
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chriswatson196
Member
Registered: 20th Mar 08
User status: Offline
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Any thoughts on wiring directly like you said and putting in a switch so i can turn it off manually so I dont kill the battery when the car is left?
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Rybo
Member
Registered: 6th Mar 08
Location: Cumbria
User status: Offline
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if i had got round to being a premium member i could of drawn you a wiring digram so you could do it...if you have time i could try scan one on for you and email it tomorrow pal using a relay...or you could just do what you just mentioned,as i said with the fuse in line then bang the wire through a switch as well,if you were local id tell you to pop round,it would be quicker than trying to solve it like this lol!
might be worth taking the steering plastics off and just inspect for loose wires on around the back of the barrel if your suspect still!
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