Snowbear77 Member 102 Member For: 4y 2m 13d Gender: Male Location: Perth Posted 30/04/23 03:14 PM Share Posted 30/04/23 03:14 PM Just within the last week, my dash has developed a 'sound of light crackling, under the dash. It stops ( temporary when I change the vents direction, or change between internal or external ventilation. It dosent stop when I turn the air con unit off. It just keeps on crackling. Once, it kept happening after even removing the keys, but stopped when I locked the car. Sometimes, when I've driven it lately, there's no noise at all. Anybody come across this before........? Link to comment Share on other sites More sharing options...
Snowbear77 Member 102 Member For: 4y 2m 13d Gender: Male Location: Perth Posted 01/05/23 09:00 AM Author Share Posted 01/05/23 09:00 AM (edited) Today, the crackling started today as I turned the car to accessories after being parked for 12 hours...........audio was off, air con was off. I got my head down below the steering wheel , and it sounds like it could be coming from the back of the ICC or just to the right of it.....I tried to record it on my phone, though I couldnt hear it when I played the video back...... Edited 01/05/23 09:01 AM by Snowbear77 Link to comment Share on other sites More sharing options...
k31th less WHY; more WOT Site Developer 28,920 Member For: 16y 6m 26d Gender: Male Location: Melbourne Posted 01/05/23 09:12 AM Share Posted 01/05/23 09:12 AM sounds like you need to get your hearing checked ... seriously, though, I don't have a clue what could be doing that other than a short that's sparking with a small/tiny voltage... but without a recording we'd be poking in the dark to figure out what's going on... Link to comment Share on other sites More sharing options...
Puffwagon Puff Gold Donating Members 15,823 Member For: 9y 9m 6d Gender: Male Location: South Australia Posted 01/05/23 09:27 AM Share Posted 01/05/23 09:27 AM 7 minutes ago, k31th said: we'd be poking in the dark I'll poke you in the dark In all seriousness though, the description might point to the issue but I've never pulled a dash out, so couldn't tell you what it is. Link to comment Share on other sites More sharing options...
k31th less WHY; more WOT Site Developer 28,920 Member For: 16y 6m 26d Gender: Male Location: Melbourne Posted 01/05/23 09:48 AM Share Posted 01/05/23 09:48 AM 20 minutes ago, Puffwagon said: I'll poke you in the dark sounds enticing Link to comment Share on other sites More sharing options...
Snowbear77 Member 102 Member For: 4y 2m 13d Gender: Male Location: Perth Posted 01/05/23 09:56 AM Author Share Posted 01/05/23 09:56 AM Ok, I'll try again for a recording......... Link to comment Share on other sites More sharing options...
hoe Member 77 Member For: 8y 6m 9d Posted 01/05/23 11:43 AM Share Posted 01/05/23 11:43 AM I suspect hvac fan Bearings are flogged out and fan is just touching shroud. Link to comment Share on other sites More sharing options...
Snowbear77 Member 102 Member For: 4y 2m 13d Gender: Male Location: Perth Posted 01/07/23 09:00 AM Author Share Posted 01/07/23 09:00 AM update. The sound stopped completely, until I recently turned the heater on during a cold drive, and the knocking has since been constant in the last 2 days of driving. This knocking is constant even when the air con/heater is completely turned off . If what you suspect @hoe about the hvac, is it a 'dash out' job to replace the hvac bearings? Link to comment Share on other sites More sharing options...
Snowbear77 Member 102 Member For: 4y 2m 13d Gender: Male Location: Perth Posted 01/07/23 10:37 AM Author Share Posted 01/07/23 10:37 AM Could these symptoms mentioned in the previous post be related to the HVAC system? Link to comment Share on other sites More sharing options...
biddie_fiddler [IMPULSIV3] Donating Members 1,374 Member For: 5y 7m 7d Gender: Male Location: Perth, WA Posted 09/07/23 01:05 AM Share Posted 09/07/23 01:05 AM Do you have dual zone a/c? If you do, set it to heat and check both sides are hot. If not you may have a broken mixer shaft. They can make funny noises when broken Link to comment Share on other sites More sharing options...
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