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2000 Chevrolet Astro 4.3L Excessive Emissions, MIL Lamp on
Posted to GM Driveability on 1/21/2006 21 Replies

Did a complete tune-up about 3 mths ago. The code was there at that time. Cust did not want to presue. Now they had a drive clean test with a fail and want to fix.

We're thinking a worn timing chain but don't want to tear apart before your input.

Thanks in a...

21 Replies Received (View Replies)

  Related Documents & Media  2000 Chevrolet Astro

 
Message Closed w/FIX

car Vehicle Data

2000 Chevrolet Astro

VIN 1GCDM19W8Y
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, MIL Lamp On
OccursAlways

Trouble Codes

P1345Mass Airflow Sensor Loose Contact With Low Frequency
Message Closed w/FIX

car Vehicle Data

2000 Chevrolet Astro

VIN 1GCDM19W8Y
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, MIL Lamp On
OccursAlways

Trouble Codes

P1345Mass Airflow Sensor Loose Contact With Low Frequency