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1995 Chevrolet Astro 4.3L Poor Fuel Economy
Posted to GM Driveability on 6/10/2002 10 Replies

i used the old methed for finding a vacuum leak. i applied the torch to the plenum and idle increases with intake port plugged with rags. with no air entering the intake van still runs. has anyone come across this problem and if so, what did you do?

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  Related Documents & Media  1995 Chevrolet Astro

 
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car Vehicle Data

1995 Chevrolet Astro

VIN 1GNDM19WXR
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsNot OBD-II Compliant
SymptomsPoor Fuel Economy
OccursAlways, Cruise, Idle
Misc.Fuel Injection System

Trouble Codes

34iac problem
Message Closed

car Vehicle Data

1995 Chevrolet Astro

VIN 1GNDM19WXR
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsNot OBD-II Compliant
SymptomsPoor Fuel Economy
OccursAlways, Cruise, Idle
Misc.Fuel Injection System

Trouble Codes

34iac problem