It seems like my 2.5 4 cylinder shifts into overdrive too early. When I am not accelerating to much it hits overdrive at probably 30 mph, is that about normal. Everytime I drive it I just can't stop thinking that it shifting early. I have a 97 tj
Automatic shifts into overdrive early
- Thread starter old jeep new to me
- Start date
Your transmission is the 3-speed 30RH which doesn't have an overdrive. That "extra shift" you're assuming is an overdrive is actually the torque converter locking to help keep the transmission cooler and improve mpg by eliminating slippage inside the torque converter.
Are you running larger than factory size tires? If so that would reduce the engine rpms at which you drive at. The cure is to regear both axles to a lower ratio which would restore the rpms back up to where they were before the larger tires were installed.
Are you running larger than factory size tires? If so that would reduce the engine rpms at which you drive at. The cure is to regear both axles to a lower ratio which would restore the rpms back up to where they were before the larger tires were installed.
Yes, I am running 32x11.5s. I thought that might be the case because of the tires. I probably won't regear as I just basically use it for a fun weekend drive now and then and the expenses involved. If I had tons of money to put in it I sure would because I would like to see the real difference I keep hearing about.
Thanks for the quick response.
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