Having problems with your 2000 GMC New Sierra 1500 ?

I have a 99 GMC sierra with a 4.8L 4L60E trans and its not shifting in to 3rd or 4th gear does fine from 1st to 2nd any tips

Posted / edited by AnonymousUser on : 12-03-2018

Answers :

THe 4l60 is an electronic produced shift trany, It sounds like the place to start, is to see if you can shift it manually. Starting out in first and work your way up as the vehile speed increases. I have a question for you. Did this problem occur all at once or over time? I would say most common reason is shift solinoid problem, But could be many other reasons like, sticking valve in valvebody, bent or worn linkage, improper fliud pressure to pistons, etc. with your help and imput we can probably narrow the problems solution down.
Repair Help & Product Troubleshooting for 2000 GMC New Sierra 1500

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