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Auto repair

Tiny
MIKE2FAN
  • MEMBER
  • 1994 CHEVROLET S-10
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 176,000 MILES
1994 chevy s10 4.3 engine light comes on after engine is warmed up and driven for a while come up with code 32 EGR valve. Replaced with new EGR valve still having the light and rough idle after light comes on what else could cause this?
Friday, January 7th, 2011 AT 6:59 PM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Recheck the EGR valve and passages for carbon-if okay test the wiring back to the computer for short/open circuit-
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Friday, January 7th, 2011 AT 7:30 PM
Tiny
FORD MAN
  • MEMBER
  • 115 POSTS
Having same problem with my '92 S10, 4.3. If carbon isn't the problem, you might have a vacume leak, or a vacume hose problem. Check to see if the vacume control solenoid (the part that connects to the EGR valve via a vacume tube) is working. At idle that part should have vacume coming from it. Otherwise you have a vacume leak. Somewhere ! Happy hunting. As I am.

Ford Man in Michigan
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Friday, January 7th, 2011 AT 8:16 PM

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