- Joined
- Nov 18, 2023
- Messages
- 11
- Reaction score
- 4
- Points
- 3
- Location
- Mississippi
- Vehicle Year
- 2000
- Make / Model
- Ford Ranger
- Transmission
- Manual
Hi. My 2000 Ranger revs up to around 2500 on cold mornings on startup. This lasts 10-15 minutes. Then it surges up to 2500, then back to 1500 or so every 3-4 seconds and will continue this until driven. I changed out the air control sensor, no vacuum leaks and thermostat is good per my mechanic. Any suggestions? Thank you.