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1995 Chevy Blazer idle

Tiny
THEATH4
  • MEMBER
  • 1995 CHEVROLET BLAZER
Engine Performance problem
1995 Chevy Blazer 6 cyl Two Wheel Drive 2000 miles

What should I look at next, I have changed the CPI, the Ignition Control Module, the Idle air control valve, and the egr valve and my idle still surges badly at warm up, pretty steady after getting warm, I dont beleive I have a vacuum leak, cant hear one, any help would be aappreciated?
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Tuesday, December 22nd, 2009 AT 9:04 AM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check and test the throttle position sensor/manifold absolute pressure sensor-to include a fuel pressure check-Vacuum leaks check with WD-40 around the upper/lower plenum, vacuum hoses. Also test the coolant temperature sensor-
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Tuesday, December 22nd, 2009 AT 12:45 PM

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