I have a problem when I run AC

101,000 MILES
Avatar
SRMRFISH
  • MEMBER
  • 2 POSTS
I have a 2002 subaru legacy with a 2.5 L engine it runs fine except after AC is on for awhile it bucks ang check engine light comes on and code comes up po852 which in book says nuetral safety switch and after running for awhile wthout AC on check engine light goes off, code clears and it stops bucking Please Help John M
Aug 7, 2012 at 6:59 AM
Advertisement
Avatar
ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
the bucking sounds like a secondary break down on either plugs. wires or coil. have them checked to confirm.

Roy
Aug 7, 2012 at 7:17 AM
Avatar
KHLOW2008
  • ✓Experienced Mechanic
  • 41,812 POSTS
You could hae a bad ground ciruit connection somewhere.
Aug 7, 2012 at 7:42 AM
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.

Frequently Asked Problems for This Vehicle