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99 GMC K1500 shifts hard out of first gear

99 GMC K1500 shifts hard out of first gear

Postby adangela3 [OP] » Apr 13 2011, 2:43am

Hi,

My 1999 GMC Sierra K1500 when i come to a stop and go again it always shifts hard when it shifts in to the second gear.... I was told it was something with the high pressure release when it shifts down. If anyone has any idea to check out to fix it let me know

thanks
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Re: 99 GMC K1500 shifts hard out of first gear

Postby amberlynn » Apr 13 2011, 3:30am

I'm no expert but think you have 4L60E. Every one I've ever known has shifted high and hard into 2nd gear. I thought it was just characteristic of the tranny..mine is the same with 95k miles and my buddys with 220k the same and my other buddy with an 04 since new has always known it the same. My 01 seems to get a lil smoother when it warms up, but think its just the norm
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