tranny problems

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BLAZINWOODY
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Hi. 1999 Blazer,V6,AT,4WD...

I have been having transmission problems after i have been driving for 30+mins. It shifts hard into 2nd and sometime it engine starts reving up while I stay at the same speed. I am not leaking any fluid and it is at the proper level. I heard that it might be the valve body/ TCC or something related to the valve body. My check engine light is on and I get the code P1870. My service 4WD light is on also. Any ideas on what I can do to fix it? Thanks a lot!
Jan 19, 2007 at 3:46 PM
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CLEAVAGE4U
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Daddy used to work on Uncle Jeb's blazer like yours. He says it might be a TCC but That a real tugg code to figure out sometimes. He says he ran into a poor internal ground into the VCM. He said there a couple valves that might have "debris" in em.
Jan 19, 2007 at 4:06 PM