Pmurray
New Member
Hi all. I own a 2012 LT z71 with about 37k miles on her. Recently I have noticed a ticking noise coming from unknown location under dash, pass side I think. I did search the topic already and found a few older threads but nothing definitive. Here's what I do know. The tick, every few seconds remains the same speed regardless of the fan speed. If I turn the HVAC system off it stops. Also if turn the recirc air button on it stops. So basically it ticks when the system is on and the fresh air vent is open. Does that sound like a relay type issue? Anyone else have the same problem? Thanks.