GMC Sierra owners have reported 1 problem related to transmission solenoid (under the power train category). The most recently reported issues are listed below.
I have a 2003 GMC Sierra 1500. At 1300 miles, I lost a fitting that connects the transmission line to the radiator for the tranny cooler and the transmission was destroyed. A rebuilt transmission was put in my pickup. I now have 32000 miles on it and the transmission seems to "double" shift between 2nd and 3rd gear. I've had my truck in the shop 5 times to diagnose this problem. The dealership cannot reproduce/find the issue. The pressure control solenoid was replaced about 4 days ago. The transmission is still acting up.
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