Car Information:
Oldsmobile Silhoutte
Year: 2000
Engine Size: 3.8
Trans: Automatic

Issue / Question:
Vehicle has 92,000 miles.
Sometimes it shifts hard in every gear. I can turn it off for a few minutes, and drive it again and the trans will be smooth, no harshness in the shifting at all.
Could something be plugged??

Answer:
Sounds like the electronic pressure sensor in the transmission is causing to much fluid pressure intermittently. I would be tempted to replace it if the system had no trouble codes stored.

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