2001 Chevrolet Silverado Rythmic clicking under dash
JONC1438
MEMBER
2001 CHEVROLET SILVERADO
5.7L
V8
4WD
AUTOMATIC
20,000 MILES
Clicking happens even with engine off and ignition switch on. Although it is a little faster when engine is running.
Appears to be from behind brake in black box
Happens when all AC off or on and when air is max or normal no changes
Not turn signals they work normal
leaning toward blend door or some ac door actuator
Monday, August 18th, 2014 AT 9:17 AM
1 Reply
HMAC300
MECHANIC
48,601 POSTS
It is aprobably a relay bad in the underhood fuse box, you will be able to feel which one is clicking remove cove and switch with a like relay and see if it stops if not there is a hsort on thatcircuit someplace.