My 1999 mercury sable 24VDohc is sputtering when I press the accelerator going down the highway, when I have the brake pressed and in drive it sputters. Changed fuel filter and used sea foam in tank.
2 Answers
I suspect a fuel pressure issue. Possible fuel regulator. Fuel pressure test would need to be done to determine what the problem is.
themechanic1900 answered 7 years ago
keep things simple replace fuel filter if it persists the follow the steps above^^^^^^^^