Notifications
Clear all
0
20/10/2026 12:33 am
Topic starter
- Hi Scotty, long time fan. My question is I have a 2014 Ford Mustang V6 automatic and my rpm keeps fluctuating and the car shakes a little bit when I turn my ac or defrost on. I’ve put in a new throttle body, new spark plugs, new ac compressor, I’ve done a tb relearn manually then a tb reset with a Launch Scanner and still. Any thoughts?
1 Answer
0
20/10/2026 4:32 am
Well the AC is straining the vehicle. Check the battery and alternator. If they are weak it will do that. Also check the idle up switch that makes the idle go up a little bit when you turn the AC on to compensate for AC compressor strain
