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1991 Chevrolet S10 4.3L Poor Idle Quality, high idle
Posted to GM Driveability on 4/23/2009 10 Replies

IAC goes to 145 in any gear, goes back down in P or N Iac goes to 145 with gear selector un hooked, shifting with screwdriver{ ECM still sees P/N} unpluging tranny does not change anything It is going into closed loop and is not setting any codes

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  Related Documents & Media  1991 Chevrolet S10

 
Message Closed w/Summary

car Vehicle Data

1991 Chevrolet S10

VIN 1GCCS14Z0M
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / tbi
Emissionsca
SymptomsPoor Idle Quality, High Idle
Message Closed w/Summary

car Vehicle Data

1991 Chevrolet S10

VIN 1GCCS14Z0M
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / tbi
Emissionsca
SymptomsPoor Idle Quality, High Idle