Joelbbvette
TYF Newbie
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- Jun 8, 2019
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My 2008 Yukon Hybrid has just over 100K. Started doing the following and looking for help. When first starting, have to wait for transmission to build pressure before truck will move forward. Also under constant acceleration or gas is applied, getting a warbling sound that might be coming from transmission pump. Basically goes away after removing pressure from gas pedal. Any suggestions appreciated.