seanmooney
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Registered: 16th Nov 07
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on the way home there this evening the lights started dimming and the rev went from idling from 1 on the rev to just under it and back again... would this be alternator related?
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Root
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Registered: 28th Dec 08
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I would think if your revs lowered as well...that your engine was about to stall.
Do your lights shine less brightly when the engine is off?
Sounds like petrol wasn't getting through or something similar and your car was about to stall.
[Edited on 27-05-2009 by Root]
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seanmooney
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Registered: 16th Nov 07
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no wasnt going to stal... it kept going going up and down, up and down... etc... its 1.7 diesel aswelll if that makes any difference..
they wee also dimming when i was driving...
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Dan H
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Registered: 27th Nov 08
Location: Stockton-on-Tees
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do you have a sub or anything in your car?
mine does it when i have my music on loud  takes every bit of life out of my battery lol and my lights look like they are flashing/dimming
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Root
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Registered: 28th Dec 08
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quote:
Originally posted by --DannyH2k9--
do you have a sub or anything in your car?
mine does it when i have my music on loud takes every bit of life out of my battery lol and my lights look like they are flashing/dimming
yer mine does that, well did when it worked.
That's what powercaps are for though tbh.
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seanmooney
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Registered: 16th Nov 07
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no, no subs or anything....do your revs go up and down slightly as well?
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Dan H
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Registered: 27th Nov 08
Location: Stockton-on-Tees
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powercaps are for puffs  .
get q bigger battery lol. i aint got any room in my boot for anything other than my amp, and that has to be shot beind my seats. Sub box takes up all my boot  . 5mm at the side and 3cm and the top, thats how much room is spare lol
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seanmooney
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Registered: 16th Nov 07
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see the biggest problem is that i havent got a sound system in the car, it only started there this evenin...
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Dan H
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Registered: 27th Nov 08
Location: Stockton-on-Tees
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has your car being used regualry? if not, charge your battery, and also keep the radio off. this might help it, or the battery might goosed. if it doesnt hold any charge then it will only be running off what the alternator is making if you get me. charge your battery, keep the radio off and see if that helps
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seanmooney
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Registered: 16th Nov 07
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but its starting on the button though.. if the battery was buggered would it start?
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Dan H
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Registered: 27th Nov 08
Location: Stockton-on-Tees
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if its gettin used regulary it will start off the key. i can use mine every day, leave it for about 5days, then the battery is dead, charge it up to full, put it back on car, light still dimming but car will start fine
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seanmooney
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Registered: 16th Nov 07
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what what about the revs? will this also be affected in the way that i was on about?
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Dan H
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Registered: 27th Nov 08
Location: Stockton-on-Tees
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the battery could cause the car to be dropping with revs, but its very unlikely, it could possibly be the AFM or crank sensor. you would have to take it to a garage to find out what the problem is propperly because its pretty hard to diagnose i problem without the car being here lol
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seanmooney
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Registered: 16th Nov 07
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welll took the car to a fell i know 2 day in a garage and he said it wasnt a crank sensor, lights would of came up on the dash like engine managment. so he checked the alternator to see if it was working properly, and the reading came up normal.. i was working ok though when i took it over to him.
but on the way back home from work this evenin it started again, when i got back to the house i pulled out the demister switch and it stopped, pushed it back in again and started again...
soooooo any ideas?
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Dan H
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Registered: 27th Nov 08
Location: Stockton-on-Tees
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the engine light doesnt alwas stay on with some faults. sometimes the engine light will come on for a few mins then just go off again. i cant think of anything that will cause the dimming when the de-mister is off :/. i'll try and do some research tomorra see what i can find out
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seanmooney
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Registered: 16th Nov 07
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see no managment lights or anything came on at all... its a funny one.. lol
its like the bloody cars afraid of the dark.. lol
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seanmooney
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Registered: 16th Nov 07
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well ive narrowed it down to be happening when the car is running, when the engine is not running it doesnt happen obviously..
so can it either be the alternator or the wiring ,2 diferent people have said it to me.. so i think im going to change the alternator to see if it will change anything.. bt the funny thing is that the car starts no bother every time so it must be charging all right.. i dont know what the wiring is think they were on about some sensor or somethin.. can anone help me there?
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sebbyg
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Registered: 8th Dec 07
Location: Kent
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check the alternator belt it correctly tensioned, and also that it is putting charge back into the battery
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seanmooney
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Registered: 16th Nov 07
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see a fell put a tester on it he other day and it was holding steady at 13 something and he said it was dead on but it wasnt doing it when i got overthere so i wasnt surprised.. lol
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seanmooney
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Registered: 16th Nov 07
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well i got a second hand alternator at the weekend and changed it and happy days it sorted he problem, car even drives better..
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john_c20xe
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Registered: 10th Feb 08
Location: Eastbourne, EastSussex
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if the alterntor wasnt charging mate the battery light would pop up!
sounds liek an earth problem
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seanmooney
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Registered: 16th Nov 07
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There was no lights comming up though, thats why no one i knew didnt know what was going on, but all's ok now..
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