Having problems with your 2003 Chevrolet Suburban 2500 ?
My 2003 Chevy suburban will not shift from 2 into 3 gear. It revs up in between 2 and 3rd and when you let off it finally shifts, but will not go into overdrive. The solenoid is working because we commanded it to open with a scanner and we could hear the solenoid. We also changed the ignition switch and it still is not working. What could be the issue?
It sounds like a hydraulic leak in the transmission.This would mean loss of pressure holding the gear.Clutch pack seal,maybe or servo leaking.If the filter is stopping up,this could have a affect on the problem.Change the filter and fluid,and use recommended fluid with the product called LUBE GUARD.You can find it at NAPA auto parts.If this does not un stick the valves in the valve body,then a overhaul is next.I hope this helps,if so,let us know,thank you.
Repair Help & Product Troubleshooting for 2003 Chevrolet Suburban 2500
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