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Why Does my Chevrolet Blazer 1991 Idle go Up after Three minutes of Running

Tiny
GARCIA55
  • MEMBER
  • 1991 CHEVROLET BLAZER
I start the Engine and after Three min. Of running the idle goes up
Friday, December 23rd, 2011 AT 8:31 PM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Clean and test the idle air control valve -start here
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Friday, December 23rd, 2011 AT 8:37 PM
Tiny
CODYMCNEAL
  • MEMBER
  • 1 POST
You need to replace your fuel pump
My k5 blazer was doing that and we talked to te mechanic about it and he said that it is proably the fuel filter so we replaced it and it fixed it.
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Tuesday, December 27th, 2011 AT 8:34 PM

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