Originally Posted by Camo1967Mustang
It could also b ur rpms
My baby does tht sometimes when her rpms drop
This! At low RPM's. And when I started it the other day, it almost stalled out. But mostly at low RPM's. I have no clue to what to look for, could it be:
1. Motor Oil...in my mind it may have something to do with the motor oil. I have regular oil changes—could the oil be a winter-capable oil? Low temperatures do amazing things to your car's engine oil, altering its viscosity and making it harder to serve its purpose.
2. Did the SCT Tuner do something that the computer/engine didn't like?
3. O2 sensor, clogged fuel lines, vacuum leak, intake leak?
4. cylinders not firing?
I'm not a mechanic and have no clue what to look at under the hood. Please, any help would be great.