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hsv_babe
Fully Licenced
269 Posts
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 Posted - 03 Jul 2010 : 12:59:53 PM
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Hey guys, as ya's no i had a problem with changin over dash clusters in the good old vn, and that resulted in my indicators to not work at all. So seeings as its not raining for once in good old ballarat I decided to have a look under my dash. pulled out the fuse for the turning signals and what do you no, the bloody thing is melted! WTF!!!! how does this happen by swapping clusters??? Changed over every fuse except for the 7.5 amp one cos i didnt have one, but what else should I be looking at and should I be concered about this?
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I'd gladly push my holden than drive a bloody ford! |
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Mechknight73
National Driver
1001 Posts
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Posted - 03 Jul 2010 : 1:54:22 PM
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| I would say check the individual amperage on the circuit of each blown fuse. If a fuse blows in the normal way i.e. filament broken, it usually just means a dud earth to that circuit; power is getting in that shouldn't be. As a basic check, turn on your indicators and see if the amperage coming from them is not more than the fuse that's supposed to be there. If it's normal, then just pay close attention next time the fuse blows. A melted fuse suggests that this wasn't a quick "jolt" of power; it didn't just suddenly get too much in the way of amps, or it got a mega dose a lot higher than usual. Keep it under observation for now, once you've checked the amperage. |
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hsv_babe
Fully Licenced
269 Posts
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Posted - 03 Jul 2010 : 2:19:37 PM
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| yeah i checked all the amperage about 20 mins ago the filament wasnt broken on the fuse at all the blue plastic has melted.....weird. it was the only fuse like it too but changed them all anyway |
I'd gladly push my holden than drive a bloody ford! |
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Mechknight73
National Driver
1001 Posts
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Posted - 03 Jul 2010 : 5:57:22 PM
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| Heat is caused by resistance, and there's obviously something funny going on with the indicator circuit. Start at the bulbs, and work your way back. What you're looking for is bad connections in the form of partly broken wires, shorts or even something wired funny. Go for the works and check your trailer connection too, as 9 times out of 10, trailers and the plugs associated with them cause tail light and indicator fuses to blow. |
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Mechknight73
National Driver
1001 Posts
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Posted - 03 Jul 2010 : 6:00:49 PM
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| I almost forgot, check your flasher unit too. Be they the old mechanical or electric kind, sometimes they can cause trouble. Does it tick on and off like it's supposed to, or is it acting funny? Pull it out and check for any melting, scorching or damage |
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VNSVLE
Forum Moderator
1316 Posts
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Posted - 03 Jul 2010 : 10:18:21 PM
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| Another place to check is the actual bulb holders as they corrode and rust and cause all sorts of drama's |
What's the difference between understeer and oversteer?
Understeer is when the driver is scared.
Oversteer is when the passenger is scared. |
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hsv_babe
Fully Licenced
269 Posts
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Posted - 04 Jul 2010 : 11:41:27 AM
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| thanks heaps for the pointers guys. when i put the blinkers on they do nothing at all doesnt register in the cluster or anything lol. i'll check all that once i have finished playing band hero on the wii hellz yeah!!!! |
I'd gladly push my holden than drive a bloody ford! |
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Mechknight73
National Driver
1001 Posts
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Posted - 04 Jul 2010 : 12:11:58 PM
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Therein sounds like it could be your culprit. I don't know what the internals of a VN's flasher unit looks like, but I remember the one in my HQ; an electronic thingy with a clear casing. It started to do all sorts of weird things when I noticed the outer casing had begun deforming a bit.
The mechanicals of the old flasher units were simple; A thin wire stretched between two terminals. When current ran through it, it got warm, which made it get long enough to swing the contact it was connected to onto a switch. Power went through this contact to the lights until the wire cooled, and opened that switch. Then the cycle would keep going until you turned the indicators off. The modern ones do it with transistors and capacitors, but the "contacts on, contacts off" thing remains because they want the ticking noise to stay, "just to remind you your indicators are on." |
Edited by - Mechknight73 on 04 Jul 2010 12:19:04 PM |
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hsv_babe
Fully Licenced
269 Posts
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Posted - 27 Jul 2010 : 4:17:04 PM
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| My hazard lights dont work either lol |
I'd gladly push my holden than drive a bloody ford! |
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Mechknight73
National Driver
1001 Posts
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Posted - 27 Jul 2010 : 5:33:17 PM
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Hazard lights and indicators all run through the same fuse; the only difference being that the hazard light switch turns on both sides at the same time. The hazard light circuit does bypass the ignition, but both the turn indicators and the hazard light switches all go through the flasher unit. It's the most likely culprit if you aren't getting anything at all from your indicators.
Luckily flasher units are cheap and readily available; even if your store doesn't have any for your VN at the moment, I'd be surprised if it took more than two days to source one. |
Edited by - Mechknight73 on 27 Jul 2010 5:44:24 PM |
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hsv_babe
Fully Licenced
269 Posts
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Posted - 31 Jul 2010 : 10:12:57 PM
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| Changed the flasher unit today, still nothing, my dad thinks i've got a bad earth somewhere |
I'd gladly push my holden than drive a bloody ford! |
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Mechknight73
National Driver
1001 Posts
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Posted - 31 Jul 2010 : 11:03:30 PM
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| Would have to be, after all that. Trace each line to and from the indicators, and see where it is a dud. Is this the same car that had the bent front end before, or is this a different car? It occurred to me that if it was this car, they might have forgotten to attach an earth or not tightened an earth lead down properly |
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SKDWGN
P Plater
80 Posts
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Posted - 02 Aug 2010 : 9:02:38 PM
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| mine melted the fuse plastic the other day and then it melted all the wirein from the headlight switch to the tail lights to the fuse box so cheack for a dead short cos mine caught fire under the rear seat |
wheres theres smoke theres rubber |
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hsv_babe
Fully Licenced
269 Posts
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Posted - 08 Aug 2010 : 4:23:17 PM
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| Yeah its the same car that I brought smashed in the front end. Everything was working like a treat in it until i decided to be a super trooper and changed that dash cluster, god only knows what i've done lol oh well its at the auto electricians now as i dont have a hell of a lot of time to have a look at it will let you guys no what i did to it once i get the damn thing back lol |
I'd gladly push my holden than drive a bloody ford! |
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Mechknight73
National Driver
1001 Posts
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Posted - 08 Aug 2010 : 6:06:09 PM
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| Just for a moment, take out the dash cluster, and have a look in behind it. This is just a theory, and if I'm wrong, all it's cost you is ten minutes. My theory is that when you took out the old cluster, you dislodged some earth or power lead. Have a quick look and see if there's anything at all out of place, no matter how tiny. Also, check to make sure there's no crap on the cluster connectors themselves; there's this stuff that looks like old shrinkwrap that drifts out from behind the cluster, and that may be stuck in one of them. Also, if there were something metallic in there, it might explain the melted fuse |
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hsv_babe
Fully Licenced
269 Posts
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Posted - 09 Aug 2010 : 3:56:44 PM
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| Nope none of that is there at all. Auto electricians are saying i have the wrong dash cluster in the car (how the f does that make sense its the original one lol) so the cheeky buggers made me go buy another one (kept the receipt they can pay me back lol) so by the sounds of it they have no idea wtf is going on |
I'd gladly push my holden than drive a bloody ford! |
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Mechknight73
National Driver
1001 Posts
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Posted - 09 Aug 2010 : 11:31:40 PM
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| Had a similar story with the aircon fan and demister in my VN. The blower fan, aircon fan and rear window demister all refused to work, and the auto sparky originally told me to get him another L/H switch cluster(Wipers,dimmer, etc.) when really it was simply one relay in the wrong socket. This one relay was different to the others, and it was the real cause of why I had no blower fan, radiator fan or rear demister. This was after I'd changed the fan sensor, the fan speed resistor, and even checked the wiring in the tailgate. He admitted his mistake and only charged me for an hour's work |
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