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1996 Chevrolet Blazer 4.3L Poor Idle Quality, Poor Fuel Economy
Posted to GM Driveability on 6/4/2008 28 Replies

Hi guys,

This vehicle has developed a rough running on start up that last for several miles. Rough enough the owner at times has to pull over and shut the engine off and restart it. Sometimes that helps. They say that the milage has gone way down.

I know tha...

28 Replies Received (View Replies)

  Related Documents & Media  1996 Chevrolet Blazer

 
Message Closed w/Summary

car Vehicle Data

1996 Chevrolet Blazer

VIN 1GNDT13W8T
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Poor Fuel Economy
OccursAlways, Cold, Intermittently

Trouble Codes

P0420Catalyst Efficiency Below Threshold (Bank 1)
P1345Mass Airflow Sensor Loose Contact With Low Frequency
Message Closed w/Summary

car Vehicle Data

1996 Chevrolet Blazer

VIN 1GNDT13W8T
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Poor Fuel Economy
OccursAlways, Cold, Intermittently

Trouble Codes

P0420Catalyst Efficiency Below Threshold (Bank 1)
P1345Mass Airflow Sensor Loose Contact With Low Frequency