Tech changed plugs -- now it runs rough.
My car had a very short (1/4 second) stumble in the idle immediately at startup. Other than that the idle was very smooth.
He said I needed new plugs. Fine. He changed them.
NOW, it won't start unless I give it gas. If it does, it runs very rough and won't smooth out until I give it gas. Even then, it runs rough.
What could it be?
[He said that before long I'd need a new distributor cap, rotor, O2 sensor, and wires.] Maybe, but with the current ones it was running very smoothly, now it isn't.
Yes, I checked. All the wires are securely attached to the plugs.
This is a MB-only, certified tech.
1994 C280, dark green metallic
1991 190E 2.6, Black
(sold to another forum member)
2003 Chevy Tahoe LT, Redfire Metallic
1989 Mustang GT Cobra Convertible