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1992 Chevrolet Astro 4.3L Excessive Emissions
Posted to GM Driveability on 1/29/2002 4 Replies

Van came in failing HC on IM240 test. Found throttle sticking and EGR valve open all the time. Cleaned the throttle body, now EGR is closed at idle, but opens fully when throttle is open??? Looked good on our machine, but failed HC AND CO. Scanned computer, te...

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  Related Documents & Media  1992 Chevrolet Astro

 
Message Closed w/FIX

car Vehicle Data

1992 Chevrolet Astro

VIN 1GCDM15Z2N
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / TBI
SymptomsExcessive Emissions
OccursAlways
Message Closed w/FIX

car Vehicle Data

1992 Chevrolet Astro

VIN 1GCDM15Z2N
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / TBI
SymptomsExcessive Emissions
OccursAlways