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Home » Public Forums » GMCnet » TH425 Shifting Issues When Cold (Delayed Shifting 1-2 )
TH425 Shifting Issues When Cold [message #337299] Thu, 27 September 2018 14:09 Go to next message
Gary Carlton is currently offline  Gary Carlton   United States
Messages: 59
Registered: February 2014
Karma: 0
Member
Hello
When my transmission is cold, it will not shift 1-2. As it warms up, it will begin to shift but it sounds/feels to me as if it cycles back and forth 1-2-1-2 etc very quickly. After about a mile of driving, everything becomes normal and it works as expected.
The question is what is causing this and can I fix it in place or do I have to pull the unit?
Thank you all very much for your time and any advice you can offer me.
gary


'78 Royale, "Road Grub" Bellingham, WA
Re: TH425 Shifting Issues When Cold [message #337301 is a reply to message #337299] Thu, 27 September 2018 14:44 Go to previous message
jhbridges is currently offline  jhbridges   United States
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
Senior Member
Call Manny. After you try the syggesstions on his web site. Manny's Trannys.

--johnny


Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons. Braselton, Ga. I forgive them all, save those who hurt the dogs. They must answer to me in hell
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