Hello all,
I'm new to the forum. Recently my department purchased a number of 2019 Tahoes. I've noticed that since about 200 miles, mine will jump from 500 RPM to about 900 RPM while sitting in park. No shakes or misfires, just idling high. It usually will correct itself after about an hour of running OR turning the car off and back on again, however within 20 or 30 minutes the RPMs will return to 900. My vehicle seems to be the only one that does this. Any ideas if that's normal or what it could be?
I'm new to the forum. Recently my department purchased a number of 2019 Tahoes. I've noticed that since about 200 miles, mine will jump from 500 RPM to about 900 RPM while sitting in park. No shakes or misfires, just idling high. It usually will correct itself after about an hour of running OR turning the car off and back on again, however within 20 or 30 minutes the RPMs will return to 900. My vehicle seems to be the only one that does this. Any ideas if that's normal or what it could be?