My old radiator cracked, so I changed it myself. I put the new one in and then bought 3 1-gal of 50/50 coolant/antifreeze. I added about 3/4 of a bottle, turned on the car, and it’s rpm was about 3000
I then followed the instructions on the manual for changing the coolant (ran it idle for 30 secs, added coolant, then let it run idle until fans turned on and off twice, added coolant to reservoir and up to neck of radiator, etc.) and its rpm is still around 2700. What can I do to fix this? I cannot move the car as chrome button on the speed lever is not letting be pressed. The car does not seem to overheat as the fans come on. I’ve let the car run to the point where the fans come on once, twice, 3 times and it does not overheat, but rpm is high and cannot move vehicle due to chrome button.