Hello !
i'm a french owner of 1997 blazer, i have a strange problem with my 4L60E.
My tranny shift bad Under 10°celcius, at cold start, this one stay in third. I pluggued an obd2 scantool and this display lot of solénoïdes problems...But there are good, because my tranny works fine after a fiew hours on parking.
When the problem happens, it's impossible to remove the ingnition key.
I think that the problem is the wire harness of the ingnition switch.
Someone has solved this problem is the past ?
Thank you in advance for your reply and i'm very sorry formy bad English.

Best regards

 

Hi !
Nobody has an idea ?

 

Yes I believe you are right. Here is a PDF is reference to a similar defect.
http://www.atra.com/bulletins/2009/mar/atb1244.pdf

There are few people who know anything about or how to diagnose transmissions and can usually only be diagnosed in person. So the lack of the response is not surprising

Good luck, and post an update if it fixes it!

 

Hi ! Thank you for the "PDF", i will place a post when this problem is fixed.

regards

 

Hi !
I has replaced the ignition switch and now my tranny works very fine.
A big thanks from France.
Thank you very much for the PDF.

 

Yay!! I'm so glad to here! Many more years of driving! Cheers!

 

classic ignition switch symptom