2008 Chevrolet Impala A/C unit?

Tiny
BRADCHECK_42
  • MEMBER
  • 2008 CHEVROLET IMPALA
  • 3.9L
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 108,000 MILES
If I'm driving down the road with my air on an say I turn the A/C off (but leave the fan on) it starts knockin over by like the glove box area. As soon as I turn the air back on it works an the knockin/tickin stops. If its on A/C an I switch it from recerclote air to fresh it again starts knock in/tic kin over by the glove box. An final if I have it on the whole time get where I'm goin an shut my car off it'll do the same, all times lasting bout 5 min then its done! What the heck is wrong an whats it cost to fix?
Wednesday, September 2nd, 2015 AT 5:25 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
No problem with the AC. The problem lies with one of the vent door actuators. My guess is the one that changes from fresh air to recirculate. Most likely, the actuator is bad, out of adjustment, or the door is sticking causing the noise.
Was this
answer
helpful?
Yes
No
Wednesday, September 2nd, 2015 AT 7:19 PM

Please login or register to post a reply.

Related Air Conditioner Switch Content

How to Use a Test Light
VIDEO
How to Use a Test Light
Instructional repair video
VIEW MORE