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James Feller
Frequent User
Username: james_feller

Post Number: 74
Registered: 5-2008
Posted on Tuesday, 15 September, 2009 - 10:23:   Edit PostDelete PostView Post/Check IP

Hi Guys,

I thought I would ask the group for thoughts on a little issue, of late I have noticed an odd very faint buzzing/bleeping noise coming through the dash somewhere it sounds like that 'radio inteference' noise when your suppressor is buggered. It's not constant, it tends to come though while accelerating between 2000rpm to 3500rpm and go once you ahve reached speed.
I notice no reduction in power or car surging so I don't think it is mechanical.
This noise seems to be coming from in the dash board rather than through the speakers so not sure quite what it is.
Secondary to this is I keep blowing fuses in the ICE space when turning the headlights on. If I flick the lights on I trip the 10 amp fuse. I have replaced the 10 amp about 3 times and it blew each time I turned the head lights on. The car has had a new stero and amp put in a while ago so I thought it might just be the ICE drawing too much power but this fuse thing has only just stared to occur in the last few weeks. I tried it with a 20 amp fuse and this for a while worked fine and no issues, then last night it blew again as I flicked the lighting on. I then put a 25 amp and this seems to work fine.

I will say I have had the mobile phones removed and now removed the 15 amp fuse for this circuit was just thinking that this could be a cause for the ICE tripping out? The memory seats seem fine as I have read that the ICE and Seats circuitry maybe interlinked?

I am not sure whether the ICE fuse thing and the faint bleeping at certain RPM are related. As I stated the bleeping is very faint and sounds like the interference you sometimes get when you need a new suppressor? Does the Turbo have a suppressor like this? I know I had a new one put in the Spirit but the noise was slightly different in the SPirit it was like you could hear the RPM faintly through the radio.... maybe the Turbo manifests this issue in this way???

any thoughts has anyone else had this issue?

Cheers

J
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Richard Treacy
Grand Master
Username: richard_treacy

Post Number: 1960
Registered: 4-2003
Posted on Tuesday, 15 September, 2009 - 21:57:   Edit PostDelete PostView Post/Check IP

James,

Buzzing noise: look for leaves or fragments in your climate control blowers. It happens all the time, especially when accelerating as the fan spimdles move back on their free play and buzz against any debris. Sometimes a worn blower bearing does the same thing on high-milers. You may disconnect the blowers one at a time as a diagnostic. This applies to SZ and SY cars alike.

Blowing fuses in your in-car entertainment (not the human varieties I assume) ? Best attack the installers under warranty.

RHT.
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James Feller
Frequent User
Username: james_feller

Post Number: 76
Registered: 5-2008
Posted on Wednesday, 16 September, 2009 - 07:53:   Edit PostDelete PostView Post/Check IP

no not the human kind RT...

Thanks I'll check for debris although my car is 20 years old it doesn't have Appollo mission Klms. I'll look tomorrow to see if this is what it is trapped in the fans or cowling but it just doesn't sound like a leaf touching the fans, it sounds more like electrical bleeping....

anyway thanks, ohh by the way any recommendations on where to take the car to have its wheels redipped and painted? They are looking a little dull and crazed. ( Before you say it RT, no not the tip, I like the orginal wheels)

:o)

J
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Paul Yorke
Grand Master
Username: paul_yorke

Post Number: 416
Registered: 6-2006
Posted on Wednesday, 16 September, 2009 - 17:49:   Edit PostDelete PostView Post/Check IP

To eliminate the fans , just operate them on Low Auto & High. See if the noise changes. Or turn them off and see if you still get the noise.

What sort of frequency is the beeping? Or is it a hum, a buzz or a whine?

Does it get louder or the frequency get faster as you reach 3500 RPM?

10 Amp to 25Amp is a big step James. If that was protecting an ECU then things may start to fry. To look on the bright side though, you can follow the smoke and locate the problem more easily. :-)

What year is the car?
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James Feller
Frequent User
Username: james_feller

Post Number: 77
Registered: 5-2008
Posted on Wednesday, 16 September, 2009 - 19:39:   Edit PostDelete PostView Post/Check IP

Hi Guys,

Yeah, I am concerned re the fuse Paul. If its protecting an ECU I would hate to do any major damage, I am going to have the guys look at it. It is not the A/C fans. I have swicthed off the A/C completely and it is still faintly there.
Paul it does not get louder as you accelerate. It is like a faint alarm kind of beep, like a house alarm when you decativate it and it emits a tone to let you know its disarmed or armed.
My car is an 89 Turbo. To my knowledge it does not have any alarms fitted to it.
Its very puzzling actually and I was just wondering if it could be related to the ICE issue... probably not...
What I have not done yet is turn the radio off competely and test this...the car is getting the alloys redone and will be back on the weekend, i'll let you know if this cures it...
Although i'm now concerned re an ECU... jesus these things can be infuriating!!!

Cheers

J
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James Feller
Frequent User
Username: james_feller

Post Number: 78
Registered: 5-2008
Posted on Wednesday, 16 September, 2009 - 20:42:   Edit PostDelete PostView Post/Check IP

Guys,

I have just remembered, my panel dimmer is not working. It has never worked since I have owned the car. Ie the panel lights are on full intensity all the time when I turn the headlights on. The headlights are fine and stay on as they are on a different circuit but the interiror panel lights flcik out and of course the ICE system. I suspect this could be an issue, ie someone has done something dodgy re the dimmer?
I will revert for safety sake back to the 10amp fuse till next week when I get the boys to have a look. The reason I upped it was I thought the new sound system and amplifier might be drawing too much power for the old 10amp fuse to handle. The beeping sound now seems to me on recollection that it could be coming from the ICE or amp rather than the car.
Paul this circuit is not connected, I dont think, to any ECU's but I don't want to risk a diagnosis by 'looking for a trail of smoke'....

J
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Paul Yorke
Grand Master
Username: paul_yorke

Post Number: 435
Registered: 6-2006
Posted on Thursday, 24 September, 2009 - 22:43:   Edit PostDelete PostView Post/Check IP

James,

I had a car in with a similar problem. I went to change the dimmer unit and a screw from the dashboard fell out of the unit. I tried it sans screw and it was fine, Just a thought,
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James Feller
Frequent User
Username: james_feller

Post Number: 86
Registered: 5-2008
Posted on Friday, 25 September, 2009 - 07:30:   Edit PostDelete PostView Post/Check IP

Hi Guys,

The problem has been solved by my mechanics. It was an issue in the lighting switchbox. As you turned the switch there was a prob or somthing that was touching another contact which in turn was shorting out and tripping my fuses and causing the humming sound. It took a while for the boys to trace it as these silly things do but good as ever they found it!
I cannot wait to pick the beast up tonight, I havent driven it for 2 weeks and am getting Turbo withdrawals....
The freshly painted alloys look terrific and really lift the overall appearance too.

Thanks all for your help and advice as always.

Cheers

J
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Eugene Oleinik
Experienced User
Username: eugenerus

Post Number: 12
Registered: 8-2009
Posted on Friday, 25 September, 2009 - 16:03:   Edit PostDelete PostView Post/Check IP

James, nice to hear you solved it!
Would you mind posting a picture of "freshly painted alloys"?
I am interested to see how this can look.
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James Feller
Frequent User
Username: james_feller

Post Number: 87
Registered: 5-2008
Posted on Saturday, 26 September, 2009 - 17:22:   Edit PostDelete PostView Post/Check IP

yeah it was driving me crazy blowing fuses....

Eugene, I will try to post some pictures for you but not sure how they will turn out... I dont have any close up 'before shots' but I am very happy with the result. They were acid dipped to remove all the old paint and then sand blasted to prepare the surface. I primer coat was applied then 2 urethane colour coats sprayed on. The result is the whells now look brand new. The guys told me it was very tricky as the Ronal alloys have many tiny vanes around the circumference of the wheel that need to be carefully sprayed on each side to avoid runs and thin patches. It took 4 days to do them. They removed the black rubber ring around the centre caps, re did the black outer surface seperately to the painted centre cap finish. Yes I would believe it was a pain in the you know what...
I will wash the car tomorrow and take some pics mate as not sure if news has made it over there but we are having the most unbelieveable dust storms at present... the cars are all filthy!!!

Cheers

j