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Transfer Case 4x4
CHEVY SWITCHING INTO 4 HIGH
2004 Chevrolet Avalanche
January, 16, 2010 AT 10:16 AM
Drive Train Axles Bearings problem
2004 Chevy Avalanche V8 Four Wheel Drive Automatic 52112 miles
Upon switching into 4 high the light blinks and a message appears stating 4 wheel drive needs servicing.
i go into 4 wheel drive 6 times a year.
I put a code reader on the port and no errors were shown.I then tried to switch into 4 h with code reader pluged in. Still no code.
im able to select 4 low and it goes in and light stays steady. But the 4 high still blinks.
note the lights are on the selector switch.A solid green mean its engaged into 4 wheel drive.
thanks for the time
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Temp Guage Is High (3/4 High), Always Cold
January, 26, 2010 AT 12:03 PM
A generic code reader will not read body or tranfer case codes. You will need a scan tool that can read all modules. More than likely there is a problem with the transfer case position sensor and/or encoder.
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