transmission not shifting correctly on 2005 Chevrolet Avalanche 1500

why does my transmission sometimes start off in high gear?it doesnt begin in first and go through the normal pattern. I have been told that it is some type of sensor. it doesnt happen all of the time.

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1 answer 1 comment
You may have a fault with one of your shift solenoids. There should be a fault code stored in your powertrain control module. Accessing the code or codes should help to diagnose your transmission fault.
I know you hate to hear this.... but if your vehicle is 4+ years old and about 80+ thousand miles and you pull a trailer.... you might wanna start making connections with the folks at Jasper for one of their rebuilt transmissions....

ask me how I know!!! :(