2011 Jeep Grand Cherokee Ac problem

2011 JEEP GRAND CHEROKEE
46,000 MILES • 3.6L • V6 • AWD • AUTOMATIC
Avatar
BRENTJOLLY
  • MEMBER
  • 2 POSTS
My ac on high will blow hard for minute or two then blow low few seconds then hard again and it does this over and over
Jul 30, 2014 at 11:08 AM
Advertisement
Avatar
JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,246 POSTS
Check the blower motor resister, check for bad grounds, check power supply to blower motor.

Also, is there any strange noise associated with this problem?
Jul 30, 2014 at 2:24 PM
Avatar
BRENTJOLLY
  • MEMBER
  • 2 POSTS
No funny noise at all. Was thinking resistor, but everyone is telling me that it usually works on high only when resistor is bad.
Jul 30, 2014 at 4:17 PM
Avatar
JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,246 POSTS
That is correct. However, it sounds like something is shorting limiting the power to the fan motor. There has to be a bad connection or wire at some point.
Jul 31, 2014 at 7:57 AM
🔧 Tools & Auto Repair Parts
Find automotive tools, diagnostic equipment, and replacement parts for your next repair.
Shop on Amazon →
Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Ask a new question

Frequently Asked Problems for This Vehicle