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1995 Chevrolet Blazer help

Tiny
COOLDOGG
  • MEMBER
  • 1995 CHEVROLET BLAZER
  • 4.3L
  • V6
  • 4WD
  • AUTOMATIC
  • 14,000 MILES
Ok so I have had three code readers on this vehicle it cant read it its a 1995 chevrolet s10 blazer 4wd 4.3 v6 its beeing weird its idling rough at low speeds cant stay at one rpm when stopped the idle is bouncing around going low then kicking back up back and forth at high speeds 45 50 it dont do it jyst idling stopping at lights signs and driving low speeds its doing it running rich put a new fuel filter egr valve the pump is strong I need help I have to go to wyoming wendsday and I need to make sure its going to make it there and I would love to have it running good I payed 500 for this vehicle help lol thank you
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Sunday, June 22nd, 2014 AT 12:17 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,320 POSTS
!995 was a transition year, so I'm not sure which OBD system you have. The idle issue is most likely the result of either a vacuum leak or the idle air control valve (IAC). The IAC is responsible for maintaining the engine idle speed and is located on the throttle body.
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Sunday, June 22nd, 2014 AT 9:17 PM

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