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I have a problem when I run AC

Tiny
SRMRFISH
  • MEMBER
  • 2002 SUBARU LEGACY
  • 101,000 MILES
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
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Tuesday, August 7th, 2012 AT 1:59 PM

2 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
The bucking sounds like a secondary break down on either plugs. Wires or coil. Have them checked to confirm.

Roy
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Tuesday, August 7th, 2012 AT 2:17 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
You could hae a bad ground ciruit connection somewhere.
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Tuesday, August 7th, 2012 AT 2:42 PM

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