| Subject: | Stumbling |
| Question: | I
have a 1989 Mitsubishi Galant dual overhead cam. fuel injecte 5 speed. Recently the engine has begun to stumble when accelerating from 1st gear the car jerks back and forth so I either have to push in the cluth and rev up the rmpms so it will stop jerking. once the vehicle is moving over 35 mph everything is Ok. there is no loos of power when I step on the gas but the jerking is driving me loco. I have cheked for vacuum leak, disconected hoses, replaced the air filer, fuel pump, replaced spark plugs |
| Answer: | Sal, Your throttle body may be sticking, or your accelerator cable may need to be adjusted. Another common cause of this "bucking" is a clogged EGR solenoid. If you didn't replace your fuel filter when your fuel pump was replaced, that should be done as well. If you feel this is not a mechanical problem, you should have your
computer scanned for trouble codes. You may have a faulty sensor;
such as Intake Air Temperature, Throttle Position, or Idle Speed
Control sensors. Most of the better equipped garages will have code
readers, or you could even go to an AutoZone if you have one in your
area. They can perform code reads for free. |