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P0446a
Posted to Technical Theory Forum on 11/15/2007 8 Replies

Hi All.

We have this Avalanche that sets P0446. After studying how the system works on MOD, we think we know how to test the system, but want a second opinion.

We first cleaned the vent solenoid filter as it was full of dirt.

Then we used scan tool to pu... Login to read more.

8 Replies Received (View Replies)

 

car Vehicle Data

2002 Chevrolet Avalanche 5.3L

Engine5.3 L
Trans5-speed Automatic

car Vehicle Data

2002 Chevrolet Avalanche 5.3L

Engine5.3 L
Trans5-speed Automatic