I own a 2002 Pontiac Grand Prix SE (stocked) and I noticed when I go up hills or drive fast (like interstate speed. Here it's 65 mph on i84) that my transmission just sits at around 3k RPM. Even when I push on the gas sometimes it doesn't shift. It shifts perfectly fine until I get on a hill or interstate and I feel like I'm she's struggling along. It's get stuck at 3k RPM until I let off the gas and then it shifts. Is my transmission going? When I'm on the interstate and I'm doing 65, I feel like I'm doing 55. Also, when my car hits 210 on the temperature gauge, it shifts hard. Any solutions? Thanks guys.
Originally Posted by dsmuts
