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CHEVROLET S-10
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NATURELUV047
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  • 3 POSTS
1999 chev s10. 4 cyl and 102, 000 miles. Started slowing at 35 mph. Well not go any faster. Did a fuel test, voltage test, okay. Check all sensors ok, except the crank angle sensor, resistance came out ok, but no batt volt to sensor. The coils ohms are ok. There is no spark coming from the coils, I suspect a bad ign module. :)
Oct 19, 2007 at 6:50 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Check the fuse for the ignition control module.

This is how things goes in this ignition circuit-The CPS feeds the computer the crank signal and in return the computer tells the ICM to fire the coil

Is this a 2.2L engine
Oct 19, 2007 at 7:46 PM
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