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1991 Chevrolet Astro 4.3L MIL Lamp on, High Idle
Posted to GM Driveability on 3/18/1999

Hello Fellow Techs, This van is giving me a serious headache due to having a very hard time locating the problem. All indications suggest a large vacuum leak , however I cannot seem to locate a thing. I have pinched off every vacuum hose with no change...

  Related Documents & Media  1991 Chevrolet Astro

 
Message Closed w/FIX

car Vehicle Data

1991 Chevrolet Astro

VIN 1GCCM15Z8M
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / TBI
EmissionsOBD1
SymptomsMIL Lamp on, High Idle
OccursAlways

Trouble Codes

35IAC Problem
Message Closed w/FIX

car Vehicle Data

1991 Chevrolet Astro

VIN 1GCCM15Z8M
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / TBI
EmissionsOBD1
SymptomsMIL Lamp on, High Idle
OccursAlways

Trouble Codes

35IAC Problem