Question about 1993 GMC Sierra K1500

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No reverse and hard shifting forward gears

I have a 96 vette with 73000 miles on a 4l60e trans,all of a sudden ,no warning, reverse went out 10 minutes after I just used it. and forward gears started shifting hard and trans started whining.car never abused.

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Hi there,

it seems like the pressure control solenoid (PCS) causing the hard shifting and in most cases upshifts only. If this is the case with yours then a scan with a trans capable scan tool may reveal a stored DTC...

Good Luck!!

Thanks

Posted on Jul 13, 2009

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