4l60e Shift Problems

97TheHoe
Posts: 1
Joined: Sat Dec 17, 2016 4:58 pm

4l60e Shift Problems

Unread post by 97TheHoe » Sat Dec 17, 2016 5:06 pm

Im having a problem with my 4l60e transmission. In drive it starts in 2nd gear and only shifts up to 3rd. I can gain 1st gear manually but not 2nd manually. When the transmission shifts to overdrive it is intermittent. I've changed the 1-2 Shift, 2-3 Shift, the pmw, and the 3-2 downshift solenoids with no change. Ruled out the ignition switch by jumping power from the first ignition wire to the transmission wire with no change. Need advise before i throw more money into it

 

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carriedi
Posts: 2280
Joined: Wed Apr 10, 2013 12:42 pm
Location: Oregon

Re: 4l60e Shift Problems

Unread post by carriedi » Thu Dec 22, 2016 11:14 am

I am not a transmission expert but I would scan the trans module and see if there are any codes before I did anything else. Then go from there

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