97grand cherokee trans issue

[tiptons.garage]

Hi new to this but here goes. 97 grand cherokee auto trans. after 20 30 miles it will down shift on its own and after a few miles it will go back into higher gear. any ideas

[Saudade]

Yes 2 ideas.

1. Check your throttle position sensor.

2. Post this in the Grand Cherokee forum. They would be more familiar with this.

[fredjacksonsan]

I'll move this over to the Grand Cherokee forum for you.

The CPS (crankshaft position sensor) can also cause odd shifts.

[crazydriverz]

from my recent experience i can almost put it on the throttle positioning sensor. put your multi meter to use and test the sensor.